Andy has decided to seek medical help for a serious sleep difficulty, mood disturbance, and appetite problems. Which neurotransmitter is most likely involved in the problems Andy is experiencing?

Larry is 30 years old and will play tennis with 18-year-old Chris. They are equally matched in ability. Larry will probably

spend less time in warm-up because he is more mature. need more rest afterward to allow bodily functions to return to normal. need less rest afterward because he is stronger. lose; he cannot keep up with an 18-year-old.

What do social psychologists call the tendency to rely on internal characteristics for explanations of the behavior of others, while assigning less weight to the influence of the situation?

a) availability heuristic b) convergent thinking c) stereotype suppression d) fundamental attribution error