A neurologist diagnosed a patient as suffering from Huntington's disease. The patient wants to know what other symptoms he can expect to develop as the disease progresses. Which symptoms will the neurologist list as likely to occur?
a) anorexia, aphasia, and mania
b) apraxia, apathy, and insomnia
c) amnesia, delusions, and double vision
d) dementia, depression, and hallucinations
d
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Which statement correctly summarizes internal bodily changes due to aging?
A. The heart's capacity to pump blood through the circulatory system to the brain is increased due to the shrinking of blood vessels. B. The reduction in gray matter makes the aging brain less efficient. C. The respiratory system is more efficient with age. D. The digestive system is less efficient in pushing food through the system, which often leads to constipation.
Where does the optic nerve send most of its information?
a. directly to the cerebral cortex b. to the lateral geniculate c. to the superior colliculus d. directly to the occipital lobe
Experiments in which cats were raised in environments which emphasized one feature over another showed that
a. even though the cats did not have experience with some features, they could easily learn about them. b. there was an actual decrease in brain cells tuned to the missing feature. c. when returned to a normal environment, the cats became frightened and refused to move around. d. there was an actual increase in brain cells tuned to the missing feature.
Subjects in the Craik and Watkins experiment were required to maintain a word in STM in order to report the last word on a list that began with a specified letter. The results indicated that the amount of rehearsal
a. influences retrieval from LTM, suggesting that semantic processing occurred. b. influenced retrieval from LTM, suggesting that semantic processing did not occur. c. did not influence retrieval from LTM, suggesting that semantic processing occurred. d. did not influence retrieval from LTM, suggesting that semantic processing did not occur.