After witnessing an accident that killed his daughter, George reports that he is blind. He bumps into objects at home and elsewhere. Specialists have found nothing wrong with the structure or function of his eyes and an MRI reveals no evidence of brain damage. After holding a case conference, a team of professionals suggests that George be evaluated for __________.
a) illness anxiety disorder
b) conversion disorder
c) somatization disorder
d) psychophysiological disorder
ANS: B, People with conversion disorder have symptoms involving sensory function (e.g., blindness), for which there is no physiological cause.
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Whereas the trichromatic theory focuses on the functions of the cones, the opponent-process theory explains color vision by studying the:
A. rods B. opsins C. ganglion cells and thalamus D. optic nerve and retina
What type of question allows participants the greatest flexibility in deciding how to answer?
a. open-ended b. restricted c. rating scale d. physiological
In the McMartin Preschool trial, one child was cross-examined for
A. 15 ½ hours. B. 15 ½ days. C. 15 ½ weeks. D. one year in total.
Dr. Longbottom is researching personality traits in pairs of identical twins
He believes that genetics play a large role in personality development. Which of the following traits is LEAST likely to support his position? A) Anxiousness B) Traditionalism C) Impulse control D) Achievement orientation