If they do, it may be hard for you to imagine what 10% of all adults and children who have dyssemia go through. Dyssemics can neither decipher facial expressions nor use them appropriately. They also have no understanding of the tone and pitch of voice. According to Albert Mehrabian, who has conducted extensive research on non-verbal communication, we decode another’s feeling or emotion by relying 55% on their facial expressions, 38% on tone of voice and only 7% on words. Imagine the dyssemic’s plight – communication and social interactions go awry as he receives and sends skewed non-verbal signals!