Travis is a high school teacher. He has the same group of students for a semester and then gets a whole new group of students the next semester. He notices that when he gets the second group of students, he has difficulty learning their names because he is so used to the names of his last semester students. Travis is experiencing _____.

Which of the following is a partial explanation for the increasing obesity in our society? a. More people eat alone than did so in the past

b. Increasing physical activity leads to increased appetite. c. Restaurants tend to serve larger portions. d. Dominant genes for obesity have become more common.

Dalton has been diagnosed with Korsakoff's syndrome. What likely caused his disorder?

A. He is an alcoholic and has damaged his nervous system such that glucose cannot cross the blood-brain barrier. B. He has been exposed to a virus that has now started killing neurons. C. He doesn't have enough thiamine probably as a result of chronic alcoholism. D. His glial cells are overactive and are damaging healthy neurons.

Negative reinforcement is best thought of as:

a. reinforcement for an undesirable activity. b. punishment. c. something that was predicted to serve as reinforcement but did not do so. d. stimuli whose termination or removal increases behavior.

Michael notices that every time he gets what he calls an

"adrenalin rush," his heart rate and pulse quicken and he feels a surge of energy. He also notices that lately it takes his body longer than normal to return to feeling calm and normal. What might explain Michael's delay in coming down from his "adrenalin rush"? a) His sympathetic nervous system might be too slow. b) Michael's parasympathetic nervous system may not be activating as quickly as usual. c) Michael's somatic nervous system might be interfering. d) Michael's parasympathetic nervous system may be overly active.