Discuss the human equivalent of the SDN-POA. How does it differ in regard to sexual orientation?
What will be an ideal response?
The human equivalent of SDN-POA consists of a cluster of neurons in the preoptic area of the human hypothalamus known as the INAH-1. Three additional clusters, INAH-2, INAH-3, and INAH-4, have been identified in the human brain. INAH-2 and INAH-3 are about twice as large in males as in females. Simon LeVay asked whether INAH-3 might be different in heterosexual and homosexual men. Lesions of INAH-3 in monkeys impair heterosexual behavior but do not affect overall sex drive, as indicated by rates of masturbation. He found that INAH-3 was two to three times larger in heterosexual men than in homosexual men.
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In the "finding faces in a landscape" demonstration in your text, once you perceive a particular grouping of rocks as a face, it is often difficult not to perceive them this way. This is due to
a. the inverse projection problem. b. a shift in your attentional focus. c. a recency effect. d. your prior knowledge.
Which of the following activities has been associated with white matter abnormalities in the brain?
A. one-time loss of consciousness due to a fall B. repeated heading of the ball in soccer C. one concussion that does not result in a loss of consciousness D. a mild traumatic brain injury resulting from a rugby match
The original formula for determining IQ had a serious flaw in that ________
a. the formula did not make sense for use with adults. b. the formula did not separate the "g factor" from specific abilities. c. it overemphasized performance IQ in the computations. d. it overemphasized verbal IQ in the computations.
Consider this scenario: Your best friend recently married. Your friend has a cousin with autism, and her husband's side of the family has a history of several genetic disorders, including Huntington's disease. The couple is worried about having children and they want to know if their potential offspring will be at risk for one of these disorders. They have an appointment to see a genetic counselor in 2 weeks. Explain to your friends what will happen during their visit.
What will be an ideal response?