What are the two general categories of the causes of mental retardation?
a) accidental and genetic factors
b) autistic and nonautistic factors
c) intentional and unintentional factors
d) psychosocial and pathological factors
d
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Why have scientists recently begun to realize that some of their long-held beliefs about the aging brain were false?
People are living longer. Older people have become more aware of their own brain functioning. Noninvasive imaging techniques that can be done on live brains have become available. More laboratory analyses of brains of deceased Alzheimer's patients have been conducted.
A psychologist and a dietician are cooperating on a workshop on the topic of obesity in the United States to be presented to health professionals. They review extensive amounts of information,
including information about how what we eat has changed even over the last few decades. Which of these are they likely to report to their audience? a) The number of calories consumed has actually declined since 1950. b) We tend to eat out more often and consume more fat and calories than in homemade meals. c) Although the total number of calories has remained about the same, fat calories increased. d) There are no differences in total calories, fat calories, or carbohydrates, but exercise has changed.