Limbic System

Question 1

Anterior Cingulate Cortex (ACC)

Answer 1

Stores long term emotional memory

-operates through ANS through solitary tract and dorsal motor of X

Question 2

Mid-Cingulate Cortex (MCC)

Answer 2

motivated behavior and response
anterior part
-action during fear

Question 3

Amygdala

Answer 3

Sensory experience with emotional significance–> prominently FEAR!!

Question 4

Hypothalamus

Answer 4

Autonomic/hormonal control

Question 5

Periaqueductal gray (PAG)

Answer 5

Autonomic/skeletal behaviors

• regulates emotional output
• ANS regulation via nucleus of solitary tract/ dorsal motor nuc of X and intermediolateral nuc

Question 6

Locus Coeruleus (LC)

Answer 6

enhances storage of emotional memories

Uses NE

Question 7

Dorsal Raphe Nucleus (DRN)

Answer 7

Regulates Mood

Question 8

Primary emotion

Answer 8

Amygdala, hypothalamus, PAG

• autonomic refelexes
• FEAR

Question 9

Secondary Emotion

Answer 9

Cortical limbic structures and hippocampus

• object and context dependent and involved conscious processing
• first kiss

Question 10

LGN/MGN to amygdala

Answer 10

Straight pathway to evoke fear

LC–> uses NE to make sure you remember that fear

Question 11

Ventromedial Hypothalamus (VMH)

Answer 11

rest and relaxing types of behaviors

Question 12

Lateral Hypothalamus (LH)

Answer 12

defensive behaviors–> sham rage

Question 13

Hypothalamic pituitary axis

Answer 13

control parasympathetics and sympathetic via the hypothalamus

Question 14

Perigenual region

Answer 14

vulnerable to depression

Question 15

Facial region of ACC

Answer 15

wear emotions on face

-impact facial region

Question 16

Anterior MCC

Answer 16

fear

Question 17

Ventral ACC

Answer 17

Sadness

Question 18

Rostral ACC

Answer 18

Happiness

Question 19

LC Coordination of motor outputs

Answer 19

• solitary tract/paraventricular nucleus of thalamus
• —mediate HR responses from ACC/central amyg
• PAG–NE F-f
• PVN- drives HPA axis-> NE, ACTH, cortisol
• enhances amygdala processing and memory

Question 20

Increased Amygdala volume

Answer 20

increase activity-> increase F-F

- high anxiety/depression

Question 21

Decreased ACC volume

Answer 21

ACC puts breaks on amygdala

-major depression

Question 22

Reduced glucose metabolism in ACC

Answer 22

Major depression

Question 23

NE and 5HT

Answer 23

First treatment for mood disorders

Question 24

SSRIs

Answer 24

Depression
-Dorsal raphe nuclei–produces 5HT to brain
helps Amgy, ACC and insula cortex of limbic system

Question 25

Deep brain stimulation

Answer 25

stimulates the ACC