Limbic System

Question 0

limbic system is involved in activities necessary for survival such as

Answer 0

1) distinguishing agreeable and disagreeable
2) allowing one to experience emotion
3) defining personal identity
4) learning and memory

Question 1

limbic system

Answer 1

interface between somatic and visceral areas of the brain

- the structures around the base of the brain involved in memory and emotions

Question 2

components of the limbic system

Answer 2

• hypothalamus
• thalamus
• limbic cortex(cingulate gyrus, parahippocampal gyrus, uncus)
• hippocampus
• amygdala
• basal forebrain(setpal area, preoptic area, nucleus accumbens, nucleus basalis of Meynert)

Question 3

additional components of the limbic system

Answer 3

olfactory bulbs

• olfactory tracts
• olfactory cortex

Question 4

amygdala

Answer 4

processes of emotion

- fear inhibits amygdala which inhibits learning

Question 5

functions of the limbic system

Answer 5

• olfaction
• modulates autonomic activity
• emotions
• sexual activity
• aggression
• learning and memory

Question 6

emotions

Answer 6

any strong subjective feeling that is associated with bodily changes(autonomic) that leads to an impulse for action

Question 7

agnosia

Answer 7

unable to recognize visually

Question 8

stimulation of the amygdala

Answer 8

produces fear and anxiety

- adds emotional content to memories

Question 9

learning and memory

Answer 9

acquisition of new information and/or knowledge

- retention of learned material

Question 10

bilateral hippocampal injuries

Answer 10

1) lack recent memory
2) have more disturbed emotionally charged memories than emotionally neutral memories
3) have more memory impairment when emotionally upset

Question 11

three types of memory

Answer 11

1) emotional(amygdala)
2) procedural(frontal cortex, BG, thalamus)= motor memory
3) declarative(cortex and hippocampus)=factual memory

Question 12

stages of recall

Answer 12

1) immediate recall
2) short term recall
3) long term
- requires gene transcription, protein synthesis, synaptic connections being made
4) engram(memory trace)= physical representation or location of a memory

Question 13

memory acquisition

Answer 13

• procedural: practice and repetitions increases neuronal connections
• declarative: hippocampus and its connections acquire and consolidate information
• memory consolidation occurs during REM sleep