77. Which sound(s) does the fetus hear? A) intonation and pattern of the mother's speech B) voices of people talking to the mother C) blood pumping through the mother's vascular system D) maternal sounds, such as her heartbeat, breathing, and digestion 78. A fetus's decreased response to a repeated stimulus is termed: A) sensitization. B) desensitization. C) habituation. D) dishabituation. 79. An 8-month-old fetus who hears a phone ring repeatedly over the course of several minutes probably experiences: A) initial changes in heart rate, with decreased changes as the ringing continues. B) initial changes in heart rate, with increased changes as the ringing continues. C) no changes in heart rate initially but increased changes as the ringing continues. D) no changes in heart rate throughout the ringing. 80. Habituation indicates that a fetus A) likes B) dislikes C) has learned to recognize D) has failed to perceive
81. Habituation involves a(n) A) increased B) decreased C) unpredictable D) variable
a stimulus.
heart rate response.
82. The EARLIEST time at which fetal habituation has been observed is A) 16 B) 25 C) 30 D) 37
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_ weeks.