Significant sex differences in physical development, typically associated with puberty at adolescence, are already apparent in middle childhood.

Sportscaster John Madden's fear and avoidance of flying is an example of

a. generalized anxiety disorder. b. panic disorder with agoraphobia. c. specific phobia. d. panic disorder without agoraphobia.

The brain region that has been shown to play a significant role in conditioned emotional

responses is the a. hippocampus. b. amygdala. c. hypothalamus. d. corpus callosum. e. basal ganglia.