Deck 59: Behavioral and Motivational Mechanisms of the Brainthe Limbic System and the Hypothalamus

Question 1

The reward center is located in which of the following structures?

A)Amygdala
B)Dorsal raphe nucleus
C)Periaqueductal gray region
D)Tissue surrounding medial forebrain bundle

Answer 1

D

Question 2

In which structure does the major output from the limbic system originate?

A)Hypothalamus
B)Hippocampus
C)Amygdala
D)Mammillary body

Answer 2

A

Question 3

A neurophysiology experiment is conducted in monkeys in which the amygdalae are surgically ablated bilaterally. Which of the following is most likely to be increased 6 months after ablation?

A)Despondence
B)Memory
C)Paranoia
D)Sex drive
E)Tremors

Answer 3

D

Question 4

A lesion of the lateral area of the hypothalamus would be expected to result in which of the following conditions or symptoms?

A)Weight loss
B)Weight gain
C)Hyperaldosteronism
D)Temperature dysregulation

Question 5

Which of the statements concerning the function of the amygdala is correct?

A)The amygdala functions in behavior awareness at the semiconscious level
B)The amygdala functions to project into the limbic system an individual's status with respect to the surroundings and current thoughts
C)The amygdala helps to pattern behavior appropriate for each occasion
D)All of the above are correct

Question 6

The neurons located in the locus coeruleus release which neurotransmitter?

A)Norepinephrine
B)Serotonin
C)Dopamine
D)Acetylcholine

Question 7

The gigantocellular neurons of the reticular formation release which of the following neurotransmitters?

A)Norepinephrine
B)Serotonin
C)Dopamine
D)Acetylcholine

Question 8

Which neuropsychiatric disorder is thought to be the result of an excess of the neurotransmitter dopamine?

A)Schizophrenia
B)Major depressive disorder
C)Mania
D)Bipolar disorder

Question 9

Which of the following are paired correctly?

A)Major depressive disorder and locus coeruleus
B)Schizophrenia and raphe nucleus
C)Excess dopamine and mania
D)All of the above are paired correctly

Question 10

The punishment center is located in which of the following structures?

A)Amygdala
B)Dorsal raphe nucleus
C)Periaqueductal gray region
D)Tissue surrounding medial forebrain bundle

Question 11

Stimulation of the periventricular nucleus in an animal will most likely result in which type of neurological response?

A)Fear and punishment reactions
B)An increase in appetite
C)Decreased vegetative functions
D)Coma

Question 12

In an otherwise normal individual, dysfunction of which brain area will lead to behavior that is not appropriate for a given social occasion?

A)Ventromedial nucleus of hypothalamus
B)Amygdala
C)Corpus callosum
D)Fornix