The point at which the nerves from the left side of the body cross over into the right side of the brain, and vice versa, is the ______

Leak and Christopher have suggested that having a superego may

a. confer an evolutionary advantage. b. influence whether others feel compelled to take care of someone. c. increase the likelihood that someone is accepted as a group member. d. All of these answers are correct.

Dan has a history of panic attacks in malls and grocery stores. Which additional factor would suggest that Dan has panic disorder with agoraphobia?

a. Dan has hired an assistant to do grocery shopping for him. b. Dan also has panic attacks when he is in high places. c. Dan is almost constantly anxious or irritable for no apparent reason. d. Dan uses stairs to avoid elevators.