In judging distances within four feet of the eyes, we rely on changes in the sensations of the muscles attached to each lens, a process known as

What do cross?cultural studies of psychopathology suggest concerning depression?

a. DSM categories are culture-free. b. Chinese psychiatrists often mistake depression for a form of schizophrenia. c. There are very different rates of mood disorder in Western and non-Western countries. d. Depression is a universal phenomenon that may be expressed differently depending on cultural factors.

Compared to younger people, healthy older adults in America are more likely to:

A) suffer from depression. B) be physically active. C) be optimistic. D) be pessimistic.