UNITED NATIONS EDUCATIONAL, SCIENTIFIC AND CULTURAL ORGANIZATION
UNESCO INSTITUTE FOR INFORMATION TECHNOLOGIES IN EDUCATION
INFORMATION AND COMMUNICATION TECHNOLOGY IN SPECIAL EDUCATION Analytical Survey
INFORMATION AND COMMUNICATION TECHNOLOGY IN SPECIAL EDUCATION Analytical Survey This analytical survey has been prepared for the United Nations Educational, Scientific and Cultural Organization (UNESCO).
Editorial working group: Alistair Edwards (leader) Kevin Carey Grigori Evreinov Kent Hammarstrom Marshall Raskind
The analytical survey is published in accordance with recommendations of the expert meeting held by UNESCO IITE in Moscow, Russian Federation, 18-19 February 2000. Experts: • • • • • • • •
Prof. Kiyoshi Amano, CHUO University, Japan; Dr Joost M van den Broek, Kompagne, Netherlands; Dr Alistair Edwards, University of York, UK; Dr Grigori Evreinov, Specvuzavtomatika DB, Russia; Dr Boris Koprivnikar, Centre for the Blind and Visually Impaired, Slovenia; Dr Giuseppe Nicotra, ARCA Projetti SRL, Italy; Dr Yuri Sereda, Apple Distinguished School #1126, Russia; Dr Dmitry Shilov, Ministry of Education of the Russian Federation, Russia.
http://www.iite.ru The opinions expressed in this document are those of the authors and do not necessarily reflect the views of the UNESCO Secretariat.
UNESCO Institute for Information Technologies in Education (IITE). Moscow, 2001
Analytical Survey of information and communication technology in special education Executive Summary Promotion of education is a fundamental objective of UNESCO. By definition, people with disabilities are often restricted in the extent to which they can take a full part in the society in which they live, but many of those restrictions can be reduced by their receiving good education. The most important educational resource is people â€“ teachers. However, it has to be recognized that in the present and the foreseeable future, economic and political restrictions are unlikely to be such that adequate supplies of suitably trained teachers will be available to completely fill the need for them. When human resources are inadequate, it is often easier to procure and provide technological solutions and it is most fortunate that in special education, technology can play a highly beneficial role. Although economic restrictions can affect access to technology, it can represent a good investment. This document outlines the role that information and communication technology (ICT) can achieve in special education, with the objective of getting it more widely adopted and used in UNESCO Member States. It establishes some definitions and then outlines the role ICT can play in education in three identifiable roles: Prosthetic Technology can substitute or compensate for the lack of natural function. This is important for all people with disabilities and has a particular importance in education. Educational Again, ICT is growing in importance in all forms of education but can have a particularly valuable role for this with special educational needs. Communication at a distance Technology can mediate communication between people with disabilities. Furthermore, where teachers are in short supply (as in special education) distance teaching methods can help to share what expertise there is. A mapping of technologies to communication needs is presented. Educational and other cultural challenges may be difficult to address because of economic, social and political constraints and sometimes technology is the easiest way around some of those constraints. This is the case in special education where ICT can have a significant role to play and this can apply in many different environments regardless of their level of educational, technological and economic development.
Analytical Survey of information and communication technology in special education Preface In 1988 UNESCO published the Review of the Present Situation of Special Education, presenting information gathered in 1986-1987, covering issues related to policies, legislation, administration and organization, teacher education, financing and provision for special needs education. The Review was widely disseminated and served as a reference to a number of studies, seminars and other national activities. In view of the incessant demand for information of this nature, reflecting on trends and developments in this domain, UNESCO carried out an up-date of the review in 1993-1994. Ninety Member States were initially contacted to contribute to this exercise, sixty-three of which responded. Replies were received from countries representing the different world regions as follows: thirteen from Africa, seven from Arab States, twenty-one from the Europe Region, thirteen from Latin America and the Caribbean, and nine from Asia and the Pacific. UNESCOâ€™s action also focuses on reducing the educational inequalities to which some groups having only limited access to traditional forms basic education are exposed, such as street children, children who are the victims of war, refugees and displaced persons, the handicapped, and all those who have special educational needs. With the assistance of a variety of partners, the Organization brings together administrators, decision-makers and educators at regional and sub-regional seminars in a bid to come tip with answers to the special needs of these children. It provides support for pilot activities, organizes training workshops, fosters exchanges of experience, and produces guides and other types of material to help educators and national officials make better provision for everyone to have equal access to education. Although some countries have made major strides in education of people with disabilities, the fact remains that, for the majority of countries, especially developing countries, the reality is bleak, both in terms of access and quality education for disabled persons. The findings of the UNESCO survey conducted in 1986/87 revealed that 34 out of the 51 countries supplying information had fewer than 1% of all pupils for whom special educational provision had been made. The world-wide discrepancy between needs and provision has stimulated a reappraisal of educational strategies. Many countries, after the World Conference on Education for All, are taking steps to enhance services for children with special educational needs within mainstream education and community-based programmes. The main thrust of UNESCO activities today is on policy and planning and teacher training within mainstream education. To this end, UNESCO organized a series of five regional seminars to mobilize support of education policy- and decision-makers for ensuring wider access for children with special educational needs into the regular school system, and to encourage reorientation of education strategies. Analytical survey
The scarcity of materials and literature at the disposal of teachers, parents, and community workers in developing countries has prompted UNESCO to publish a series entitled “Guides for Special Education”. More recently, in connection with training, UNESCO has ventured into the production of video materials for parent education and early intervention. In 1994, more than 300 participants representing 92 governments and 25 international organizations met in Salamanca, Spain, at the World Conference on Special Needs Education: Access and Quality, to further discuss the objective of Education for All by considering the fundamental policy shifts required to promote the approach of inclusive education. The Salamanca Statement and Framework for Action on Special Needs Education adopted unanimously at the Conference, are based on the principle of inclusion that ordinary schools should accommodate all children, regardless of their physical, intellectual, emotional, social, linguistic or other conditions. It reaffirms the commitment to Education for All, recognizing the necessity and urgency of providing education for all children, young people and adults. ‘Regular schools with this inclusive orientation are the most effective means of combating discriminatory attitudes, creating welcoming communities, building an inclusive society and achieving education for all...’ (Article 2, Salamanca Statement) 'Educational policies at all levels,... should stipulate that children with disabilities should attend their neighbourhood school that is the school that would be attended if the child did not have the disability’ (Article 18 Salamanca Framework for Action) • • •
The Salamanca Statement and Framework for Action called upon UNESCO: To ensure that special needs education forms part of every discussion dealing with education for all in various forums; To mobilize the support of organizations of the teaching profession in matters related to enhancing teacher education as regards provision for special educational needs; To stimulate the academic community to strengthen research and networking and to establish regional centres of information and documentation; also, to serve as a clearing house for such activities and for disseminating the specific results and progress achieved at country level in pursuance of this Statement; To mobilize funds through the creation of an expanded programme for inclusive schools and community support, which would enable the launching of pilot projects that showcase new approaches for dissemination and to develop indicators concerning the need for and provision of special needs education.
Furthermore, the 28th Session of the General Conference also invited the Director-General to take steps in ensuring that the concerns of person with disabilities will be reflected throughout the Education Sector Activities, especially in policy and planning, as well as in the Culture and Communication Sectors. It also called for reinforcing the inter-agency collaboration with ILI, UNICEF and WHO. Analytical survey
In pursuance of the implementation of the 28C Resolution 1.5 adopted by the 28 th Session of the General Conference, and in line with Article 4 of the Salamanca Statement, UNESCO organized an informal consultation in March 1995 with Denmark, Finland, the Netherlands, Norway, Portugal, Spain, and Sweden, to discuss the project proposal ‘Inclusive Schools and Community Support Programmes’ with the aim of mobilizing support from donor countries. The ‘Inclusive Schools and Community Support Programmes’ project departed from the principle endorsed at Salamanca, namely, that it is better and socially and economically more efficient to integrate - to include - children with disabilities and learning difficulties in mainstream school and regular education programmes than to segregate them in specialized institutions or, worse, not educate them at all. The project’s aim thus has been to foster wider access and quality education for children and youth with special educational needs, seeking to promote their inclusion in regular education provision. The Project aspires to identify, support, and disseminate information on small-scale innovations at the national level, and is intended to serve as a catalyst for all countries that wish to carry out initiatives in line with the Salamanca Framework for Action. The Project target areas are policy and school development, teacher education, education of the deaf, adult education, transition to active life, development of educational support services in schools and communities, parent education, early childhood education. The basic parameters of the ‘Inclusive Schools and Community Support Programmes’ project place emphasis on: • small scale pilot/demonstration projects with built-in dissemination strategies, i.e. to ensure sustainability and replicability; • capacity building in the form of trained teams of professionals at national, provincial and local levels; • upstream work to incorporate new initiatives into national planning; • genuine parental and community involvement in new initiatives; • benefits to a wider number of countries than those directly participating through networking and exchange opportunities, particularly at the sub-regional level. The establishment of the UNESCO Institute for Information Technologies in Education (IITE) in Moscow, based on resolution 6 adopted by the General Conference at its 29th session is part of an overall plan to reinforce the Organization’s activities concerning the introduction and application of information and communication technologies in education. The Institute, which benefits from the active and generous support of the Russian Federation Government, is specifically mandated: to assist Member States in developing their national infrastructure in this field; to train educational personnel; to facilitate dissemination and exchange of information on the subject; to mobilize partnerships within and outside UNESCO in all fields of the Institute’s competence.
The 30th Session of the General conference of UNESCO indicated the following priorities of IITE: • an international network of national focal points established as an interactive system fostering the exchange of information and experience; • an international project ‘ICTs in Education: State of the Art, Needs and Perspectives’ focused on national action plans and policy documents launched; • a set of training and self-training modules for different categories of educational personnel prepared and tested; • partnerships and co-operative agreements with existing institutions, programmes and organizations established; • national pilot projects launched. Following its mandate IITE launch several projects adopted by the international IITE Governing Board, and among them the project ‘ICTs in Education for People with Special Needs’ aimed at providing an access to electronic educational materials for this category of learners and other activities in this direction. Starting the investigation IITE met such difficulties as a lack or fragmentary character of information on the use of ICTs in SNE. Collecting and systematization of information on application of ICTs in SNE seems to be the most important and complex task at the first stage. Stoking and analysis of this information should become a basis for true recommendations for policy-makers, educators, learners and designers of soft and hardware and teaching/learning methodology. That is the reason of drafting the first Analytical survey on this issue. Process This Analytical Survey originated in an Expert Meeting convened by IITE in Moscow, 18–19 February 2000. The participants were: • • • • • • • •
Prof. Kiyoshi Amano, CHUO University, Japan; Dr Joost M van den Broek, Kompagne, Netherlands; Dr Alistair Edwards, University of York, UK; Dr Grigori Evreinov, Specvuzavtomatika DB, Russia; Dr Boris Koprivnikar, Centre for the Blind and Visually Impaired, Slovenia; Dr Giuseppe Nicotra, ARCA Projetti SRL, Italy; Dr Yuri Sereda, Apple Distinguished School #1126, Russia; Dr Dmitry Shilov, Ministry of Education of the Russian Federation, Russia.
The survey has been compiled by the following group: • • • • •
Alistair Edwards (leader) , University of York, UK; Kevin Carey, HumaITy, UK; Grigori Evreinov, Specvuzavtomatika DB, Russia; Kent Hammarstrom, Swedish Institute of Computer Science, Sweden; Marshall Raskind, The Frostig Center, USA.
Analytical Survey of information and communication technology in special education 1. Foundations Promotion of education is a fundamental objective of UNESCO. By definition (UN 1981), people with disabilities are often restricted in the extent to which they can take a full part in the society in which they live, but many of those restrictions can be reduced by their receiving good education. The most important educational resource is people – teachers. However, it has to be recognized that in the present and the foreseeable future, economic and political restrictions are unlikely to be such that adequate supplies of suitably trained teachers will be available to completely fill the need for them. Apart from other restrictions, education is a self-sustaining process; to have a good supply of teachers tomorrow we must be educating numbers of children today. The availability of teachers trained in the speciality of teaching children with disabilities is even lower. When human resources are inadequate, it is often easier to procure and provide technological solutions and it is most fortunate that in special education, technology can play a highly beneficial role. Although economic restrictions can affect access to technology, it can represent a good investment. 2. Objectives This document outlines the role that information and communication technology 1 (ICT) can achieve in special education, with the objective of getting it more widely adopted and used in UNESCO Member States. 3. Fundamental assumptions Technology is no substitute for human teachers – but can be a most valuable tool to supplement their contribution. ICT is rapidly expanding and developing. Any description herein would inevitably be a ‘snap shot’ of the situation at the current time, one that would be out of date before the report is even published. Therefore, individual technologies are not described in any detail. Furthermore, it is recognized that technology ages rapidly. This implies that what is available today in technologically advanced states is not available in the less developed ones, but by the same token, that technology will be available in those states tomorrow. To reach the widest level of adoption we must not aim at the state of the art. By the same token, there is no point in trying to be specific in this report about the state of the technology. It is better to discuss in broad terms the capabilities of the 1
Some writers refer to information and communication technologies in the plural (i.e. ICTs). However, since the trend is towards the convergence of the technologies, it seems appropriate to refer to them in the singular; in time it will be too difficult to separate the communications components from other aspects of the technology, so they might as well be treated as one.
technology and to encourage the reader to pursue more timely sources of information with regard to specific products and facilities. The acquisition and use of ICT must be placed in an appropriate context. An increased reliance on ICT can only benefit those who have access to it. In other words, there is a real danger that exclusion (for whatever reason: economic, physical, social, or whatever) will constitute a handicap (see the definition below). Furthermore, it is likely that many of those who will be excluded will be the same people who are already disadvantaged. Efforts must be expended on preventing the creation of an excluded underclass, but those efforts must be co-ordinated and appropriate; for instance, there is no point introducing electronic technologies to communities which lack electricity power supplies or which are confronting more fundamental needs â€“ such as food and shelter. It must also be recognized that educational systems vary between countries. In the particular context of Special Education, an important dimension is that of integration versus separation. That is to say that many countries are attempting as far as possible to educate all children in the same institutions, regardless of disability status, whereas other systems prefer to teach children in separate, special schools (which are often residential). Clearly the form of education will be different in these various institutions â€“ as will the role of technology. This report has been written to be concise, rather than comprehensive. It is assumed that the target readers have little time to read through a long document. For anyone requiring more details, a bibliography is provided at the end. 4.
Impairment, disability and handicap The World Health Organization (WHO) is in the process of creating new classifications and definitions of disability in terms of impairments, activities and participation (WHO, 1997), but for the purposes of this document, it is adequate to refer to the existing definitions, as presented in UN (1981). Impairment Any loss or abnormality of psychological, physiological or anatomical structure or function. Disability Any restriction or lack (resulting from an impairment) of ability to perform an activity in the manner or within the range considered normal for a human being. Handicap A disadvantage for a given individual, resulting from an impairment or disability, that limits or prevents the fulfilment of a role (depending on age, sex and social and cultural factors) for that individual.
No attempt is made herein to list disabilities. It is impossible to be definitive, particularly given the fact that handicap is socially and culturally dependent. Special Education is that sector which deals with the education of all people identified as being disabled. The objective of all education is to enable the student to take a fuller part in society. So, according to the above definitions, the effects of a good education should be to reduce the handicapping effect of the disability. The educational needs of people with disabilities are vastly diverse. They have the same needs as everybody else to learn the basic skills of literacy and numeracy to the best of their ability as well as other abilities that are required in the society in which they live. At the same time, they have (by definition), educational needs that others do not have. (Often referred to as special educational needs). For some students these needs are concerned with access to education and materials; a blind student cannot use printed materials and must have non-visual alternatives. For others, the needs may be educational in themselves. That is to say, for example, that a cognitive impairment may inhibit the student’s ability to learn, such that they need to be taught in a different manner from students without that impairment. Also the needs of some students will be more fundamental and lower-level. For example, it may be that their education has to include areas that most children master at home before they ever commence formal education. 4.2.
The role of ICT Information is a fundamental commodity. It is through the discovery of new information2, its dissemination and sharing that society advances. Fundamentally information is not modality-specific (i.e. not tied to its form of presentation, be it visually, as sounds or whatever). Information may be defined as the characteristics of the output of a process. These characteristics enhance knowledge, being informative about the process and its input. Hierarchies of processes, linked together, provide a communication channel between each of the corresponding functions and layers in the hierarchies. But the end user (destination, addressee) for whom the information exists, is a person who is trained to manipulate through modality-specific notions (which are formed by percepts). Therefore, within ‘information technology’ modal aspect of information maybe more essential for development of relations between person and computer. Education is concerned with the imparting of information – not just the simple acquisition of declarative facts, but also procedural information such as how to do things, even how to learn. Technology to aid in the processing and communication of information is not new; it is at least as old as writing. However, in the past 50 years, the development of that technology has accelerated exponentially, mainly due to the invention of digital electronics.
Let us leave it to the philosophers to argue whether information can be created. Is all information in some sense ‘out there’ waiting to be discovered and codified, or can the truly creative mind spawn information that is unique and novel?
A vital recent development has been the convergence of technology concerned mainly with the processing of information with that which deals mainly with its communication. This is clearly seen in the emergence of the Internet, whereby the processing power in each office and school can (easily) be connected and communicate with corresponding systems anywhere else in the world. The better this integration is realized, the more blurred the distinctions become. We can reach the point where the user does not know whether the information resource being accessed is held on the local machine – and (more significantly) does not care where it comes from. This convergence is what is referred to as information and communication technology or ICT. One of the difficulties of special education is that it requires special facilities and skills. These may be hard to find and expensive. At the same time, the number of children needing them within any group, may be relatively small. Again, ICT may have a role to play in disseminating and sharing special forms of education. It should not be forgotten that ICT is part of the curriculum in all developed countries. The very ubiquity of ICT in society means that to not be educated in its use could itself be a handicap. Thus, though the emphasis in this paper is on use of ICT in education, it should not be forgotten that students with disabilities should also be educated regarding the technology itself. There is some disagreement as to the appropriate description for this discipline. ‘Computer literacy’ is a generally accepted term. Reading literacy implies the basic ability to read – and not necessarily a facility at reading. Therefore, to some people the analogy is that computer literacy would imply only an elementary familiarity with the technology, whereas what is required is a fluent facility with it. Another role for technology is in assessment. People change and develop. Some impairments are progressive, but beyond such a ‘medical’ view, people change in reaction to their education and other changes in their environment. It is important therefore that assessments should be carried out regularly and these can be assisted by the use of technology. In this context it is inevitable that the technology should be applied to education. Furthermore, it has particular strengths in educating people with disabilities, as discussed in the following section. 5.
ICT in Special Education: An intermediary role
Prosthetic uses Many forms of disability affect learners’ ability to access standard educational materials and ICT can surmount some of these barriers. 5.1.1.
Access to text The key to many uses of ICT is the availability of data in a machine-readable form. This is most malleable and capable of being transformed into different formats. Printed text is not accessible to people with a number of impairments, but if the same material is available as a computer file then it can be presented in any one of a number of ways (including enhanced printed forms, such as large-print text).
Conditions that affect text access: • • • •
blindness; partial sight; dyslexia; illiteracy3.
Most text is of a literary form, which is to say that it is composed of the alphanumeric characters that are found in the ASCII code set. However, a significant amount of text is written in special notations (beyond the scope of ASCII). Most notable among these are mathematics and music. Technology is less well developed for handing and transforming these notations. 5.1.2.
Graphics Pictorial forms of information can take a vast range of forms from simple line diagrams to rich paintings. They differ in form and purpose and correspondingly means of accessing them vary. The same conditions, which affect access to text, also apply to graphical visual presentations. Though there are no recognized conditions equivalent to dyslexia or illiteracy with regard to pictures, it is clear that some people are better at mentally processing and understanding them than others. As special case of access to graphics is the graphical user interface (GUI) as found on all modern computers. The interface consists of graphical items, such as windows, icons and menus as well as text, and their interpretation is a complex visual task. Thus, the advent of the graphical user interface led to significant fears of blind people being excluded from computer use. However, efforts put into addressing that problem have paid off and a number of ‘screen reader’ programs are commercially available which give good access to these interfaces. As well as needing to read and appreciate graphics, it can be important to be able to create them. Drawing programs can make it possible for many people to generate good quality pictures and in some cases they may make it possible for people to create pictures who could not using conventional materials (notably blind people). 5.1.3.
Writing Some students lack the physical ability to write. There are a number of alternatives that can be applied. Some are able to use a standard keyboard and to type instead of hand writing. For those who may have restricted dexterity, tools exist which can speed up their input by reducing the number of key presses required, by anticipating subsequent keypresses. Other people who lack the dexterity to type may be able to wordprocess nevertheless by some form of keyboard emulation such that they generate input on some other device, which is fed into the computer as if it came from a keyboard. There is a wide range of such devices available. The lowest level of input is a single switch, which might be used by someone with severe physical impairments, such 3
There can be some debate as to whether illiteracy is a disability; one of the major objectives of education is to impart literacy. However, there are cases in which a student has a cognitive impairment which makes learning to read difficult or impossible.
as a tetraplegic. A switch would be operated by a part of the body, which might be: a hand, foot, eye blinks, breathing (through a â€˜sip and puffâ€™ switch), the head â€“ or whatever part of their body they have sufficient control over. Although simple, this form of input is also very slow. Different techniques have been developed for the interpretation of single-switch input. One such method is Morse code, which has the advantage of being long-established, and has even been taught in mainstream education in some countries. Morse is quite difficult to learn and remember, though, and some people chose instead to use scanning, menu-based systems, which involve less learning and memorization. A number of approaches exist which will maximize the amount of information extracted from each switch press. At the other end of the spectrum some keyboard alternatives provide a high rate of input. Notable among these is speech input. Current software can provide a good level of recognition of speech at conversational speeds. There are some features to note though. First, current speech recognizers are speaker-dependent and require training. Secondly, although recognition levels are high, anything less than 100% can still be inefficient in some real applications. Finally, English is the predominant language for current systems. With time, we can expect improvements in all these aspects. There are other people who have no difficulty with the physical process of writing, but do have problems with composition. The largest such group are those with forms of dyslexia which affect writing, but there are also others who have different degrees of language impairment, perhaps due to brain damage (possibly caused by trauma or stroke). A variety of tools exist to assist such people. Modern word processors often have tools such as spelling checkers, grammar checkers and outliners built in but there are also specialist tools that will help with composition. 5.1.4.
Speaking and face-to-face communication
Some people cannot communicate in speech. This may be due to an inability to physically generate the sounds of speech or it may be due to some language processing deficit. Clearly this is a handicap in most daily activities, but will clearly have a particular effect on education. A wide range of alternative and augmentative communication (AAC) devices exist. They employ a range of input strategies, aimed to suit the abilities of different users. Output may be in a written form, but most often they produce synthetic speech, which is perhaps natural as it is speech that they are intended to replace. The quality of the speech generated is most important and is constantly improving. In spite of the fact that English (and particularly American English) has received the most attention, synthesizers for other languages are available and are constantly improving. Sign languages are languages in their own right, but they tend to be used only by people who need to use them. In other words, many deaf people learn sign, but not many hearing people do. Also, there are a variety of sign languages, and they are distinct from the spoken languages used in the same countries, so that, for example, American Sign Language is quite different to British Sign Language even though the spoken language is the same in those countries. All these factors can contribute to the isolation of deaf people from the rest of the community. For those who would prefer not to be so isolated,
technology may have a role to play. As yet, sign language interpretation and translation is somewhat limited, but again it is probably only a matter of time before adequate translation (such as sign to speech) is available. There are a number of other possible uses of ICT in relation to sign language. It has to be remembered that to many deaf people, sign is their first language, and they can have difficulties with spoken and written language. Sign may be presented through technology, so that an animated figure on a screen might sign a message in place of text or speech. Also, sign is by nature dynamic, so that dictionaries of sign with animation on a computer screen are much richer than books with static pictures. 5.1.5.
Other therapeutic applications The flexibility of ICT and the variety of input and output forms that can be handled, creates possibilities for therapeutic uses. For instance, speech inputs can be processed and displayed visually to help deaf students improve the quality of their speech. Another example is that gesture-based input has been used as the basis of physical therapy (Wong 1991; Pausch and Williams 1995). 5.2.
Educational uses Computer programs can be used to teach directly to students 4. They have a number of benefits. They offer a form of individual attention to the learner. A program is infinitely â€˜patientâ€™ and can present a lesson or idea repeatedly and consistently without variation or fatigue. That is particularly useful in drill-and-practice lessons, where repetition is necessary in order for a concept or skill to be learned. This can be most useful for children with learning disabilities. It is important in computer-aided learning that a machine cannot be judgmental. Children with learning disabilities are accustomed to failing and will often adopt strategies such that they can avoid situations in which there is a danger they may fail again. They avoid the risk of failure. However, when interacting with a machine there is not the danger of annoying or upsetting another person, no matter how many mistakes one makes. Much of the educational software currently available is based on a playful, games-style approach. There is relatively little that is designed specifically for children with learning or other disabilities, but it is often possible to use software targeted at one group with others. The increasing availability of multimedia forms of interaction is important, too. For example, pre-literate students may be taught to read with the aid of programs that will produce speech. Almost all the other features of ICT mentioned in this report can have a relevance to direct educational use of the computer. For instance networks and communications can mean that educational programs can be delivered at a distance. Similarly, the flexibility of input and output channels that are available can be important. An example would be a child using a simplified form of input such as a touch-sensitive pad, rather than a 4
A number of different terms are used to describe this field, including Computer-Assisted Learning, Computer-Aided Learning (both abbreviated to CAL) and Computer-Based Learning (CBL)
keyboard. Thus lessons on handling money might be taught through pressing real coins on a touchpad, to someone who would not be able to type arithmetic sums on a keyboard. There are reasons to believe that one particular group of students with special needs can benefit from computer-based learning, and that is those who are autistic. Autism is mainly a social handicap, characterized by difficulties in relationships with other people and one suggestion is that such people have less difficulty forming a ‘relationship’ with a machine. Furthermore, regularity and predictability are important to autistic people and computers are, by nature, consistent and logical. An important example is the use of everyday computer tools, especially word processors. As discussed elsewhere, the word processor may be used prosthetically as a writing aid for someone who cannot write manually. It can also be used, though, by someone who can write – but not very well. The motivational effect of being able to produce a piece of written work which is neat and correct and printed with high quality, can be significant, and with the facilities of editing, correcting and printing this is possible for anyone. Motivation is also apparent in that children often greatly enjoy interacting with computers. Some programs – notably games – are specifically designed to enhance motivation (Malone 1982), but even with more mundane programs seem to capture children’s attention and make them concentrate for longer than they find possible for other activities. As has been stressed elsewhere, technology can never be a substitute for the human teacher. It is in the area of educational software that it is most tempting to try to make that substitution, but in general it is best to see software as a tool that the teacher can choose to use. The best software should be intelligent. That is to say that it should incorporate a student model, a representation of the individual student.
Dispersion (1-to-1, 1to-many, many-tomany)7
Direction (1-way or 2way)6
Bandwidth (High, Medium, Low)
Communication at a distance ICT can be used as part of distance teaching. This can be important when (specialized) teachers are in short supply and have to be shared between geographically dispersed students and teachers. Communication can take place in different modes and requires different rates of information flow (bandwidth). These are all summarized in Table 1. Synchronous5/ Asynchronous
Synchronous also implies real-time.
Audio broadcast (radio)
Table 1. Summary of communication styles The different styles of communication have different characteristics in terms of teaching objectives. For example, to demonstrate a physical action, a synchronous (realtime) connection (presumably a video link) is required, whereas the imparting of factual information can be achieved by a low-bandwidth, asynchronous channel, such as email. There is effectively a simple relationship between bandwidth and cost: the greater the bandwidth the greater the cost. So, while video conferencing may offer the broadest possibilities for communication, it may be too expensive, or the infrastructure to support it may not be available. At the same time, advancing development implies that bandwidth is constantly becoming cheaper. In technologically advanced countries, demand for bandwidth is always slightly in advance of its availability (we always want more) and in less developed countries the bandwidth available is less than the current state of the art. ICT can also form a useful communication medium between people with different sensory abilities. Coombs, (1995) shows how a blind teacher may be able to communicate with a deaf student despite their mis-match of abilities thanks to email . 6
Most communication can be made to be 2-way, but some is inherently more conversational. For instance a note in a newsgroup may generate a follow-up article, but nevertheless the original note was essentially a one-way communication from the poster. Many-to-many also implies the possibility of 1-to-1 and 1-to-many. Web pages may contain high bandwidth material such as video clips or low bandwidth, if they are simply text.
While email is normally used for communication between distant locations, it can also be used as a means to local, face-to-face communication. The world-wide web is a particular form of communication. It has rapidly gained in importance such that it is almost becoming an essential information source, not the least in education. The implication is that exclusion from access to the web for any reason may become a handicap. There are a number of possible causes of exclusion, probably the greatest of which is economics – simply not being able to afford the equipment and connections. The same physical and sensory disabilities that can affect any access to computers can also hinder use of the web. Efforts are being expended on ensuring that material on the web is accessible and that there are tools that facilitated that access. 6. Implementation There are a number of points that have to be considered if the introduction and maintenance of ICT in Special Education is to be successful. Probably the most important is the need to train teachers well. While it may often seem hard to acquire the equipment, there is no point in doing that if it is going to lie neglected and unused, and it will only be adopted if the people who might use it are confident in its use and convinced of its usefulness. There is also a need for support staff. While a well trained teacher should be capable of diagnosing and repairing faults, that is not the best use of a teacher’s time and technical backup should be available. Equipment must be maintained and repaired. Constant monitoring at all levels is also vital. This applies to programmes of ICT use, so that the job is not over when the equipment has been obtained and the teachers have been trained. They should not be simply left ‘to get on with it’, but should be supported and monitored. Similarly, individual students develop and change over time, so that it is important not to assume that once they have a piece of equipment that their needs will be met in perpetuity. As they develop and learn and as the technology also improves, there should be re-assessment and updating as appropriate. Many of the uses that ICT has been put to have been technology driven. That is to say that people have done things with the technology because they can. At the same time, the power of the underlying hardware has grown exponentially (Moore’s Law) making new applications possible. To be led by the technology may seem inappropriate (particularly in such a human-centred area as education) it is to a large extent inevitable. It might seem appropriate to ask special education teachers what their needs are, what the technology might do for them, but in practice it is hard for them to envisage what might be possible. An example is speech input. Until quite recently this might have been seen as a facility that would be useful for non-literate children, but dismissed as impractical. However with the increase in computing power available, it has become readily available and new applications – including in special education – are being found all the time. It seems likely that there will be three areas in which the role of ICT will grow:
• • •
prostheses; standard software; educational software.
In the prosthetic role, as ICT is increasingly used by people with disabilities to reduce their handicap, so it will be applied in special education. This is likely to encourage integration in educational systems where that is preferred. Examples would be the use of alternative and augmentative communication (AAC) devices for face-to-face communication. General applications (word processors, spreadsheets, databases etc) will continue to be used, but with the added empowerment that they can give to users with disabilities. There is some cross-over with the prosthetic role, so that, for instance, a spelling checker that is useful to most users is invaluable to some dyslexic writers. Educational software currently takes the form of games and programs designed to teach skills and concepts. Computer-aided learning is still of a fairly general, simple drilland-practice style. This can be most valuable to children with learning disabilities. Deeper learning will become possible as more intelligent software is developed – which incorporates a model of the learner. Such models are difficult to build for the average student and are even more challenging for learners who are so unusual that they are classed as having special educational needs. Such software will emerge – but not for some time yet. It will depend as much on better understanding of the psychology of learning as on better technology. 7. Conclusions Children with disabilities generally have special needs with regard to their education. Some of those needs can be met by information and communication technologies. As the technologies become more advanced and more available there is a significant opportunity to improve the quality of life of this disadvantaged group significantly. Recommendations of the Meeting of Experts (Moscow, February 2000): • •
UNESCO and Member States should turn their attention to the fact that the real break-throughs in special needs education could be provided by introduction of ICTs in their learning, training and self-training; IITE should become an international clearing house for the application of ICTs in education, in particular special needs education, and promote exchange of information and experience in this field. The examples of good practice of application of ICTs in exclusive and especially inclusive education of people with special needs in countries with different economic, social and cultural environments should be found and disseminated; There is a need for stocking existing data and knowledge bases on the use of ICTs in special needs education and making it available for learners with special needs, their teachers, teacher trainers, other educators, and decision-makers, in particular through the IITE information facilities. Thus, for this purpose an information sub-system ‘ICTs in Education for People with Special Needs’ within the framework of the IITE international project ‘ICTs in Education: State-of-the-Art, Needs and Perspectives’
should be created. Specialized questionnaires are necessary for its continual up-dating and replenishing; Education modules on application of ICTs in special needs education, first of all such modules for teacher training and re-training, should be developed within the framework of the intersectorial UNESCO project ‘The Status of Teachers and Teacher Education in the Information Society’ and included in the IITE educational programme. 8.
Alternative and augmentative communication. Use of technology as a replacement for speech. The user specifies utterances and these are (usually) translated into synthetic speech.
American Standard Code for Information Interchange. Pronounced ‘Askey’. A standard data transmission code, which is capable of representing 127 distinct codes, including all the Latin letters (upper- and lower-case), the digits, 0 to 9 and punctuation characters, such as brackets and full-stops. It also includes some unprintable control codes for formatting and printer control (e.g. formfeeds to end a printed page).
Asynchronous communication See ‘synchronous/asynchronous communication’. Bandwidth
Broadly, the rate at which information can be communicated along a channel. A high bandwidth interface can communicate a lot of information quickly and is required for rich forms of information, such as video. However, it will also be expensive. Simple information, such as text requires lower bandwidth and is less expensive.
Graphical user interface. A computer that is controlled mainly through a visual form of interaction, based on a screen, keyboard and mouse pointing device. Also sometimes referred to as a WIMP interface (windows, icon, menu and pointer).
Information and communication technology. The term that has been coined to described the convergence of technologies that process information (mainly computers) and those which communicate it (networks).
Keyboard emulation This software generates output which is indistinguishable from keys pressed on a keyboard to other software (such as a word processor). In this way, someone who cannot physically press keys can nevertheless use standard, keyboard-based software through some other style of interaction (such as selecting letters from menus on screen, using a single switch). Prosthetic technology Use of technology to reduce the handicapping effect of a disability. That is Analytical survey
to say, using technology to perform actions that the non-disabled person might achieve without technology. An example is communication through an AAC device, in place of natural speech. Screen reader A piece of software which effectively interrogates the contents of a computer screen and converts it into a non-visual form. That form may be presented to the user in the form of synthetic speech or braille. Sip and puff switch A switch that is activate by a tube placed in the mouth. The switch has three states: neutral (off), one activated by blowing into it and the other by sucking on it. Synchronous/asynchronous communication Loosely, synchronous communication involves both participants simultaneously. For instance, a telephone conversation requires both people to be on the line at the same time, to respond to each other in turn. Asynchronous communication does not require immediate responses. For example, an email message will be normally read and responded to the next time the recipient logs on to the system and not necessarily as soon as it arrives. 9. 9.1.
Works cited in the text
WHO (1997). ICIDH-2: International Classification of Impairments, Activities and Participation, World Health Organization, Coombs, N. (1995). Interfacing online services, alternative inputs, and redundant displays. (in) Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.) New York, Cambridge University Press: pp. 297-306. Malone, T. W. (1982). Heuristics for designing enjoyable user interface: Lessons from computer games. Proceedings of Human Factors in Computer Systems, Cognitive Aspects of Software: pp. 63-68, Pausch, R. and R. D. Williams (1995). Giving Candy to children: User-tailored gesture input driving an articulator-based speech synthesizer. (in) Extra-ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.) New York, Cambridge University Press: pp. 169-183. UN (1981). The United Nations Declaration on the Rights of Disabled Persons. Unesco Courier 1: pp. 6â€“7, Wong, G. (1991). The Power Glove in hand/arm therapy computer-aided, upper limb rehabilitation using a low cost, hand-tracking input device, MSc(IP) Project, University of York.
Alty, J. (1991). Multimedia-What is it and how do we exploit it? Proceedings of HCI'91, Edinburgh, Cambridge University Press. Alty, J. (1995). Can we use music in computer-human communication? People and Computers X: Proceedings of HCI’95, Huddersfield, Cambridge University Press. Bly, S. (1982). Sound and computer information presentation, PhD Thesis, Lawrence Livermore National Laboratory. Edwards, A. D. N. (1992). Redundancy and adaptability. Multimedia Interface Design in Education. A. D. N. Edwards and S. Holland (Eds.). Berlin, Springer-Verlag. 76: 145–156. Edwards, A. D. N. and S. Holland (1992). Multimedia Interface Design in Education. Berlin, Springer-Verlag. Edwards, A. D. N., I. J. Pitt, et al. (1995). Multiple modalities in adapted interfaces. (in) Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 221–244. Keates, S. and P. Robinson (1999). Gestures and multimodal input. Behaviour and Information Technology 18(1): 36-44. Loomis, J. M. and S. J. Lederman (1986). Tactual perception. Handbook of Perception and Human Performance. K. K. Boff and J. P. Thomas. New York, Wiley Interscience: 31.31–31.41. Strothotte, T., M. Kurze, et al. (1993). Multimedia-interfaces for blind computer users. Rehabilitation Technology: Strategies for the European Union (Proceedings of the First Tide Congress), Brussels, IOS Press. 9.3.
Alty, J. L. and D. I. Rigas (1998). Communicating graphical information to blind users using music: The role of context. (in) Making the Impossible Possible: Proceedings of CHI '98, ACM Press. Batusic, M., K. Miesenberger, et al. (1998). Labradoor – a contribution to making mathematics accessible for the blind (in). Computers and Assistive Technology, ICCHP ’98: Proceedings of the XV IFIP World Computer Congress, Vienna & Budapest, Austrian Computer Society. Bliss, J. C. (1969). A relatively high-resolution reading aid for the blind. IEEE Transactions, Man-Machine Systems 10(1): 1-9.
Bliss, J. C. (1972). Sensory supplementation: Reading. (in) Science and Blindness: Retrospective and Prospective. M. D. Graham (Ed.). New York, American Foundation for the Blind. Boyd, L. H., W. L. Boyd, et al. (1990). The graphical user interface: Crisis, danger and opportunity. Journal of Visual Impairment and Blindness(December): 496-502. Burger, F., G. Knasmüller, et al. (1996). Access to mathematics for the blind. (in) New technologies in the education of the visually handicapped, Paris, John Libbey Eurotext. Challis, B., J. Hankinson, et al. (1998). Alternative textured display. Computers and Assistive Technology, (in) ICCHP ’98: Proceedings of the XV IFIP World Computer Congress, Vienna & Budapest, Austrian Computer Society. Crispien, K. and H. Petrie (1993). Providing access to GUIs for blind people. 19th Convention of the Audio Engineering Society. Döhrn, C. (1984). The Speech-Pad: Direct manipulation computer access for the visually disabled based on speech and touch, MSc Thesis, Calgary University. Edman, P. K. (1992). Tactile Graphics. New York, American Foundation for the Blind. Edwards, A. D. N. (1991). GUIs among the blind. (in) Ability: Journal of the British Computer Society Disability Programme 2(Autumn): 10–11. Edwards, A. D. N. (1995). Outspoken software for blind users. (in) Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 59–82. Edwards, A. D. N. (1995). The rise of the graphical user interface. (in) Information Technology and Disabilities 2(4) (http://www.isc.rit.edu/~easi/itd/itdv02n4/article3.html). Edwards, A. D. N. and R. D. Stevens (1993). Mathematical representations: Graphs, curves and formulas. (in) Non-Visual Human-Computer Interactions: Prospects for the visually handicapped. D. Burger and J.-C. Sperandio (Eds.) Paris, John Libbey Eurotext: 181-194. Edwards, A. D. N. and R. D. Stevens (1996). New educational opportunities through multi-modal interaction: Access to mathematics. (in) Posters of the Conference New technologies in the education of the visually handicapped, Paris, Inserm. Fitzpatrick, D. and A. I. C. Monaghan (1998). TechRead: A system for deriving braille and spoken output from Latex documents. Computers and Assistive Technology, (in) ICCHP ’98: Proceedings of the XV IFIP World Computer Congress, Vienna & Budapest, Austrian Computer Society.
Gardner, J. A. (1996). Tactile Graphics, An Overview and Resource Guide. University of Oregon, http://dots.physics.orst.edu/tactile/tactile.html. Gauchat, B. (1996). A braille notation system for maths. (in) New technologies in the education of the visually handicapped, Paris, John Libbey Eurotext. Gill, J. (1993). Access to Graphical User Interfaces by Blind People. London, RNIB. Griffith, D. (1990). Computer access for persons who are blind or visually impaired: Human factors issues. Human Factors 32(4): 467-475. Kay, P. (1992). User interface for speech-controlled drawing. Proceedings 3rd International Conference on Computers for Handicapped Persons, Vienna. Kennel, A. R. (1996). Audiograf: A diagram reader for the blind. Proceedings of Assets ’96, Vancouver, ACM. Kurze, M. (1996). Studying and designing tactile drawings of real-world objects and scenes using a newly developed tool set. (in) New technologies in the education of the visually handicapped, Paris, John Libbey Eurotext. Kurze, M. (1996). TDraw: A computer-based tactile drawing tool for blind people. Proceedings of Assets ’96, Vancouver, ACM. Kurze, M. and E. Holmes (1996). 3D Concepts by the Sighted, the Blind and from the Computer. (in) Interdisciplinary Aspects on Computers Helping People with Special Needs: Proceedings of ICCHP ’95, Linz, Oldenbourg. Kurze, M., T. Strothotte, et al. (1994). Tactile Computer Graphics. Proceedings of Graphics Interface ’94, Banff, Canadian Information Processing Society. Lunney, D. and R. C. Morrison (1981). High technology laboratory aids for visually Handicapped chemistry Students. Journal of Chemical Education 58(3): 228-231. Mansur, D. L., M. Blattner, et al. (1985). Sound-Graphs: A numerical data analysis method for the blind. Journal of Medical Systems 9: 163-174. Morley, S. (1995). Window Concepts: An Introductory Guide for Visually Disabled Users. London, Royal National Institute for the Blind. Pitt, I. J. and A. D. N. Edwards (1991). Navigating the interface by sound for blind users. Proceedings of HCI'91, Edinburgh, Cambridge University Press. Raman, T. V. (1997). Auditory User Interfaces: Toward the Speaking Computer. Boston, Kluwer Academic. Ramstein, C. (1996). Combining haptic and braille technologies: Design issues and pilot study. Proceedings of Assets ’96, Vancouver, ACM.
Rigas, D. I. and J. L. Alty (1997). The use of music in a graphical interface for the visually impaired. Proceedings of Interact ’97, the International Conference on Human-Computer Interaction, Sydney, Chapman and Hall. Savidis, A. and C. Stephanidis (1995). Developing Dual User Interfaces for Integrating Blind and Sighted Users : the HOMER UIMS. Human Factors in Computing Systems: Proceedings of Chi ’95, Denver, ACM. Scadden, L. (1984). Blindness in the information age: Equality or irony? Journal of Visual Impairment and Blindness 78: 394–400. Stevens, R. (1996). Principles for the design of auditory interfaces to present complex information to blind computer users, DPhil Thesis, University of York, UK. Weber, G. (1994). Braille displays. Information Technology and Disability 1(4) (http://www.rit.edu/~easi/itd/itdv01n4/contents.html). Weber, G. (1995). Reading and pointing – New interaction methods for braille displays. (in) Extra-ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: pp. 183–200. 9.4.
Kuhlen, T. and C. Dohle (1995). Virtual Reality for disabled people. Computers in Biology and Medicine 25(2): 205-211. Murphy, H. J. (1993). Virtual Reality and Persons with Disabilities: Proceedings of the First Annual Conference, California State University, Northridge. Murphy, H. J. (1994). Virtual Reality and Persons with Disabilities: Proceedings of the Second Annual Conference, California State University, Northridge. 9.5.
Arons, B. (1993). SpeechSkimmer: Interactively Skimming Recorded Speech. Proceedings of UIST '93: ACM Symposium on User Interface Software and Technology, Atlanta. Arons, B. and E. Mynatt (1994). The future of speech and audio in the interface. SIGCHI Bulletin 26(4): 44-48. Blattner, M. and R. M. Greenberg (1992). Communicating and learning through non-speech audio. Multimedia Interface Design in Education. A. D. N. Edwards and S. Holland (Eds.). Berlin, Springer Verlag. 76. Blenkhorn, P. (1995). Producing a text-to-speech synthesizer for use by blind people. Extra-ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 307–314.
Pitt, I. J. (1996). The Principled Design of Speech-Based Interfaces, DPhil Thesis, University of York. 9.6.
Balakrishnan, R., C. Ware, et al. (1994). Virtual hand tool with force feedback. Chi’94: Celebrating Interdependence, pp. 83–84, Boston, ACM Press. Burdea, G. C. (1996). Force and Touch Feedback for Virtual Reality. New York, Wiley. Dutoit, T. (1997). An Introduction to Text-To-Speech Synthesis (Text, Speech and Language Technology, V. 3), Kluwer Academic. Ramstein, C., J. F. Arcand, et al. (1996). Adaptive User Interfaces with Force Feedback. Common Ground: Conference Companion of Chi ’96, pp. 406–407, Vancouver, ACM. Ramstein, C., O. Martial, et al. (1996). Touching and hearing GUIs - Design Issues in PC-Access systems. Proceedings of Assets ’96, pp. 2–9, Vancouver, ACM. 9.7.
Alternative and Augmentative Communication (AAC)
Blackstone, S. (1990). Populations and practices in AAC. Augmentative Communication News 3(4): 1–3. Edwards, A. D. N. (1991). Speech synthesis in augmentative communication. Proceedings of the IEE Colloquium on Systems and applications of man-machine interaction using speech I/O, pp. 1/1-1/4, London, IEE. Light, J. (1988). Interaction involving individuals using augmentative and alternative communication systems: State of the art and future directions. Augmentative and Alternative Communications 9(1): 10–25. Pausch, R. and R. D. Williams (1995). Giving Candy to children: User-tailored gesture input driving an articulator-based speech synthesizer. Extra-ordinary HumanComputer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 169-183. Steele, R. D. and M. Weinrich (1986). Training of severely impaired aphasics on a computerized visual communication system. Proceedings of Resna 8th Annual Conference, pp. 320–322. Strong, G. W. (1995). An evaluation of the PRC Touch Talker with Minspeak: Some lessons for speech prosthesis design. Extra-Ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 47–57.
Edwards, A. D. N. (1997). Legislation and access to the World-Wide Web. Proceedings of the Sixth International World Wide Web Conference (CD-Rom), Santa Clara, California. Edwards, A. D. N. and R. D. Stevens (1997). Visual dominance and the WorldWide Web. Proceedings of the Sixth International World Wide Web Conference (CDRom), Santa Clara, California, Stanford University. Paciello, M. G., G. C. Vanderheiden, et al. (1996). Designing the World Wide Web for people with disabilities. Proceedings of Assets ’96, Vancouver, ACM. Raman, T. V. (1997). Cascaded speech style sheets. Proceedings of the Sixth International World Wide Web Conference, pp. 109–119, Santa Clara. Zajicek, M. and C. Powell (1996). Building a conceptual model of the World Wide Web for visually impaired users. Proceedings of Ergonomics 96. Zajicek, M. and C. Powell (1997). Enabling visually impaired people to use the Internet. Computers in the Service of Mankind: Helping the Disabled, pp. 11/1–11/3, London, IEE. Zajicek, M., C. Powell, et al. (1998). Orientation of blind users on the world wide web. Contemporary Ergonomics. M. Hanson. London, Taylor & Francis. Zajicek, M., C. Powell, et al. (1998). Web browsing for the visually impaired. Computers and Assistive Technology, ICCHP ’98: Proceedings of the XV IFIP World Computer Congress, pp. 161–169, Vienna & Budapest, Austrian Computer Society. 9.9.
Bolmsjö, G. and H. Eftring (1993). RAID Robotic end-effector developments. Rehabilitation Technology: Strategies for the European Union (Proceedings of the First Tide Congress), pp. 108-112, Brussels, IOS Press. Buhler, C. (1998). Robotics for rehabilitation – A European(?) perspective. Robotica 16(5): 487-490. Topping, M., H. Heck, et al. (1998). The development of RAIL (Robotic Aid to Independent Living). Improving the Quality of Life for the European Citizen: Proceedings of the Third Tide Congress, pp. 217-223, Stockholm, IOS Press. 9.10.
Braffort, A., R. Gherbi, et al. (1999). Gesture-Based Communication in HumanComputer Interaction: International Gesture Workshop, GW'99. Berlin, Springer.
Cracknell, J., C. Ramsay, et al. (1996). The development of a glove-based input system as part of the SignPS Project. Progress in Gestural Interaction: Proceedings of Gesture Workshop ’96. P. A. Harling and A. D. N. Edwards (Eds.). London, Springer: 207–216. Dorner, B. and E. Hagen (1995). Towards an American Sign Language interface. Integration of Natural Language and Vision Processing. P. McKevitt. Dordrecht, Kluwer. 1: 143-162. Edwards, A. D. N. (1998). Progress in sign language recognition. Gesture and Sign Language in Human-Computer Interaction. I. Wachsmuth and M. Frölich (Eds.). Berlin, Springer: 13–21. Fels, S. and G. Hinton (1993). Glove-Talk: A neural network interface between a data-glove and a speech synthesizer. IEEE Transaction on Neural Networks 4: 2–8. Fels, S. and G. Hinton (1995). GloveTalk II: An adaptive gesture-to-formant interface. Human Factors in Computing Systems: Proceedings of Chi ’95, pp. 456–463, Denver, ACM. Harling, P. A. and A. D. N. Edwards (1996). Hand tension as a gesture segmentation cue. Progress in Gestural Interaction: Proceedings of Gesture Workshop ’96. P. A. Harling and A. D. N. Edwards (Eds.). London, Springer: 75–88. Harling, P. A. and A. D. N. Edwards, Eds. (1996). Progress in Gestural Interaction: Proceedings of Gesture Workshop ’96. London, Springer-Verlag. Ohki, M. (1995). The sign language telephone. Telecommunication Forum, Telecom 95: 391–395. Sagawa, H., M. Ohki, et al. (1996). Pattern recognition and synthesis for a sign language translation system. Journal of Visual Languages and Computing 7: 109–127. Sagawa, H., M. Takeuchi, et al. (1997). Sign language recognition based on components of gestures – integration of symbols and patters. RWC ’97, pp. 8–15. Wachsmuth, I. and M. Frölich, Eds. (1998). Gesture and Sign Language in Human-Computer Interaction. Berlin, Springer. 9.11.
Cairns, T. (1995). Students with Specific Learning Difficulties: Dyslexia in Higher Education - A Research Project. London, Goldsmiths College. Elkind, J. and J. Shrager (1995). Modeling and analysis of dyslexic writing using speech and other modalities. Extra-ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 145–168.
Elkind, J., Black, M. S. and Murray, C. (1996). Computer-based compensation of adult reading disabilities. Annals of Dyslexia 46: pp. 159-186, Higgins, E. L. and Raskind, M. H. (1995). An investigation of the compensatory effectiveness of speech recognition on the written composition performance of postsecondary students with learning disabilities. Learning Disability Quarterly 18: pp. 159-174. Higgins, E. L. and Raskind, M. H. (1997). The compensatory effectiveness of optical character recognition/speech synthesis on reading comprehension of postsecondary students with learning disabilities. Learning Disabilities: A Multidisciplinary Journal 8: pp. 75-87. Higgins, E. L. and Raskind, M. H. (2000). Speaking to read: The effects of continuous vs. Discrete speech on the reading and spelling performance of children with learning disabilities. Journal of Special Education Technology. MacArthur, C. A. (1996). Using technology to enhance the writing processes of students with learning disabilities. Journal of Learning Disabilities 29: pp. 344-354, MacArthur, C. A. (in press). Word processing with speech synthesis and word prediction: Effects on the dialogue journal writing of students with learning disabilities. Learning Disability Quarterly. MacArthur, C. A., Graham, S., Schwartz, S. S. and Shafer, W. (1995). Evaluation of a writing instruction model that integrated a process approach, strategy instruction, and word processing. Learning Disabilities Quarterly 18: pp. 278-291. McNaughton, D., Hughes, C. and Ofiesh, N. (1997). Proofreading for students with learning disabilities: Integrating computer and strategy use. Learning Disabilities, Research & Practice 12: pp. 16-28. Raskind, M. H. and Higgins, E. L. (1999). Speaking to read: The effects of speech recognition technology on the reading and spelling performance of children with learning disabilities. Annals of Dyslexia. Spooner, R. I. W. (1999). A spelling checker for dyslexic users: User modelling for error recovery, DPhil Thesis, University of York. Spooner, R. I. W. and A. D. N. Edwards (1997). User modelling for error recovery: A spelling checker for dyslexic users. User Modeling: Proceedings of the Sixth International Conference, UM97, pp. 147â€“158, Chia Laguna, Springer. 9.12.
Casali, S. P. (1995). A physical skills based strategy for choosing an appropriate interface method. Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 315â€“342.
Greenberg, S., J. J. Darragh, et al. (1995). Predictive interfaces: What will they think of next? Extra-Ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 103–140. Williges, R. C. and B. H. Williges (1995). Travel alternatives for mobility impaired people: The Surrogate Electronic Traveler (Set). Extra-Ordinary HumanComputer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.). New York, Cambridge University Press: 245–261. 9.13.
ICT and users with disabilities
Cook, A. M. and S. M. Hussey (1995). Assistive Technologies: Principles and Practice. St Louis, Mosby. Coombs, N. (1995). Interfacing online services, alternative inputs, and redundant displays. Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.), New York, Cambridge University Press: 297-306. Cunningham, C. and N. Coombs (1997). Information Access and Adaptive Technology. Phoenix, Oryx press. Edwards, A. D. N. (1995). Computers and people with disabilities. ExtraOrdinary Human-Computer Interaction. A. D. N. Edwards (Ed.), New York, Cambridge University Press, pp. 19–44. Edwards, A. D. N., Ed. (1995). Extra-Ordinary Human-Computer Interaction: Interfaces for Users with Disabilities. Cambridge Series on Human–Computer Interaction. New York, Cambridge University Press. Edwards, A. D. N., A. Arato, et al., Eds. (1998). Computers and Assistive Technology, ICCHP ’98: Proceedings of the XV IFIP World Computer Congress. Vienna & Budapest, Austrian Computer Society. Edwards, A. D. N. and R. Hancock (1995). Resources. Extra-Ordinary HumanComputer Interaction. A. D. N. Edwards (Ed.), New York, Cambridge University Press. pp. 361–374. Gray, D. B., R. R. LeClair, et al. (1987). Access to Information Technology by Users with Disabilities: Initial Guidelines. Washington, DC, General Services Agency. Lazzaro, J. J. (1996). An Electronic Bill of Rights: Adapting PCs for Disabilities. Reading, Massachusetts, Addison-Wesley. Newell, A. F. (1995). Extra-Ordinary Human-Computer Interaction. ExtraOrdinary Human-Computer Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.), New York, Cambridge University Press, pp. 3–18. Newell, A. F., J. L. Arnott, et al. (1995). Intelligent systems for speech and language impaired people: A portfolio of research. Extra-Ordinary Human-Computer
Interaction: Interfaces for Users with Disabilities. A. D. N. Edwards (Ed.), New York, Cambridge University Press. pp. 8–102. Roulstone, A. (1998). Enabling Technology : Disabled People, Work, and New Technology (Disability Human Rights, and Society), Open University Press. Shaw, R., A. Loomis, et al. (1995). Input and integration: Enabling technologies for disabled users. Extra-Ordinary Human-Computer Interaction. A. D. N. Edwards (Ed.), New York, Cambridge University Press: pp. 263–277. 9.14.
Learning and cognitive disabilities
Edwards, A. D. N., A. Salvadori-Paleotti, et al. (1985). Providing computer-aided learning for mentally handicapped children. Computer Education(February): pp. 6–7. Raskind, M. H. (1998). Assistive technology for individuals with learning disabilities: How far have we come? Perspectives 24: pp. 20-26, Raskind, M. H. (1998). Literacy for adults with learning disabilities through assistive technology. (in) Bridging the Gap: Learning disabilities, literacy, and adult education. S. A. Vogel and S. Reder (Eds.), Baltimore, MA: Brookes. Raskind, M. H., Herman, K. and Torgesen, J. K. (1995). Technology and learning disabilities: Report on an international symposium. Learning Disability Quarterly 18: pp. 175-184. Wilson, B. A., J. J. Evans, et al. (1997). Evaluation of NeuroPage: A new memory aid. Journal of Neurology, Neurosurgery and Psychiatry 63: pp. 113–115. 9.15.
ICT in education
Bryant, D. P., Bryant, B. R. and Raskind, M. H. (1998). Using assistive technology to enhance the skills of students with learning disabilities. Intervention in School and Clinic 34: pp. 53-58, Bryant, D. P., Erin, J., et al. (1998). Infusing a teacher preparation program in learning disabilities with assistive technology. Journal of Learning Disabilities 31: pp. 5566, Leong, C. K. (1995). Effects of on-line reading and simultaneous Dectalk auding in helping below-average and poor readers comprehend and summarize text. Learning Disabilities Quarterly 18: pp. 101-116, O’Shea, T. and J. Self (1983). Learning and Teaching with Computers. Brighton, Harvester Press. Raskind, M. H. and Higgins, E. L. (1995a). The effects of speech synthesis on proofreading efficiency of postsecondary students with learning disabilities. Learning Disability Quarterly 18: pp. 141-158.
Raskind, M. H. and Higgins, E. L. (1995b). Reflections on ethics, technology and learning disabilities: Avoiding the consequences of ill-considered action. Journal of Learning Disabilities 28: pp. 425-438. Raskind, M. H. and Higgins, E. L. (1998). Assistive technology for postsecondary students with learning disabilities: An overview. Journal of Learning Disabilities 31: pp. 27-40. Raskind, M. H., Higgins, E. L. and Herman, K. L. (1997). Technology in the workplace for persons with learning disabilities: Views from the inside. (in) Learning disabilities and employment. P. J. Gerber and D. S. Brown (Eds.), Austin, TX, Pro-Ed: pp. Raskind, M. H., Higgins, E. L., Slaff, N. B. and Shaw, T. K. (1998). Assistive technology in the homes of children with learning disabilities: An exploratory study. Learning Disabilities: A Multidisciplinary Journal 9(2): pp. 47-56. Vincent, A. T. (1989). New Technology, Disability And Special Educational Needs. Coventry, Empathy Ltd. Vincent, A. T., D. A. Child, et al. (1988). Disabled students, computers and distance teaching â€“ some experiences from the Open University and implications. Media in Education and Development 21(24): pp. 157-162. Vincent, A. T., D. A. Child, et al. (1989). Implications for Students with Disabilities of introducing computers into distance teaching: some experiences at the UK Open University. Bulletin of the International Council for Distance Education 9 (January): pp. 75-81. Vincent, T. (1999). Guidelines for accessible courseware. Bristol, Higher Education Funding Council for England. 10.
ABLEDATA http:// www.abledata.com/index.htm EagleEyes drawing software for physically disabled people http://www.cs.bc.edu/~eagleeye IBM Special Needs Home Page http://www.austin.ibm.com/sns Microsoft Accessibility Support http://www.microsoft.com/enable/ Morse Code http://www.uwec.edu/academic/hss-or/Morse2000
Trace Research and Development Center http://trace.wisc.edu/ The Web Accessibility Initiative (WAI) http://www.w3c.org/wai
Published on Jun 2, 2011