Role of Brain Structures in Mood Disorders

Question 1

Hippocampus Normal function

Answer 1

short term memory

Question 2

Hippocampus and mood disorders

Answer 2

Depressed pts can’t access short term memory

Manic pts can’t access sad memories

Question 3

Thalamus normal function

Answer 3

Regulates emotion, motivation, arousal, and attention

Question 4

Thalamus in mood disorders

Answer 4

Loss of pleasurable responses to sensation in depression. Sometimes associated with hypersensitivity to sensory input in mania

Question 5

Dorsolateral Prefrontal cortex in normal function

Answer 5

conscious thought, executive functions

Question 6

Dorsolateral prefrontal cortex in mood disorder

Answer 6

helplessness, indecisiveness, distorted sense of time– Slowed in depression and accelerated in mania

Question 7

Orbitofrontal cortex

Answer 7

asses risk in pursuit of reward, relate new info to context.

Question 8

Orbitofrontal cortex in mood disorder

Answer 8

overestimates risk in depression, underestimates it in mania

Question 9

Nucleus acumbens

Answer 9

Reward…..pretty easy, lack of reward in depression, excess reward in mania

Question 10

Anterior Cingulate gyrus

Answer 10

Integration of emotion and cognition

Question 11

Amygdala

Answer 11

fear, rage, selective attention