It was long assumed that early _____ played a key role in the development of dissociative identity disorder. However, we now know this has not happened in most cases

The biological indicator for generalized anxiety disorder (GAD) suggests ____

a. a disruption of the prefrontal cortex's ability to modulate the response of the amygdala to threatening situations b. a predominant role of genetic factors in the manifestation of GAD c. unusually low activity of the anxiety circuit in the brain d. awareness of the source of the anxiety by the person suffering from the disorder

You and your team of behavioral geneticists are studying schizophrenia. One effective way to conduct your research would be to study

a. MZ twins reared together whose biological mother is schizophrenic. b. MZ twins reared apart whose biological mother is schizophrenic. c. DZ twins reared apart whose biological mother is schizophrenic. d. DZ twins reared together whose biological mother is schizophrenic.