When a neurotransmitter binds to a receptor site and decreases the negative charge, it causes ________
a. severe nerve pain.
b. an excitatory effect.
c. an inhibitory effect.
d. either an excitatory effect or an inhibitory effect.
Answer: b
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Studies by Richard Thompson and colleagues suggest that specific memories depend on localized neural circuits in the brain. Thompson traced the pathway that accounts for a rabbit's memory of
a. a conditioned eyeblink. b. a rewarding food. c. the path through a maze. d. a painful stimulus.
In what way is genetics related to a child's risk of developing obesity? a. Heredity contributes to a dislike of exercise and to not getting enough sleep
b. Heredity determines whether you can or cannot be an athlete and thus get enough exercise to burn off the calories that you consume. c. Heredity contributes to tendencies to overeat, to be sedentary, or to be less able to convert fat to fuel. d. Heredity determines whether your pubertal growth spurt will increase your body's calorie needs enough to cause you to lose your "baby fat," and thus prevent you from developing adolescent or adulthood obesity.
Which of the following isan anxiety disorder?
a. somatic symptomdisorder c. agoraphobia b. depression d. substance abuse
Children who suffer extreme feelings of guilt are likely to believe that
a. they are a lot like other friends. b. they can be forgiven for their mistakes. c. the good things that happen to them are a result of their efforts. d. their thoughts cause the misfortunes of others.