Limbic System Wk3

Question 1

Why is the limbic system important?

Answer 1

Emotions, learning and memory, evoked by olfactory/emotional responses

Question 2

Emotins have 3 components:

Answer 2

1) Visceral sensory component caused by endocrine & autonomic stimuli
2) Motor component involving facialmuscles
3) Cognitive - evaluative component to assess situation

Question 3

What are the components of limbic system?

Answer 3

cingulate gyrus/cortex, parahippocampal gyrus, amygdala, hippocampus, fornix, hypothalamus, thalamus, prefrontal cortex

Question 4

Amydala is the

Answer 4

emotions & overt behavioural expression - implicated in mood disorder including drepression, anxiety, sub. abuse

Question 5

Medical disruptions to Amydala can lead to

Answer 5

Kluver Bucy Syndrome - bilateral temporal love lesions

Question 6

Symptoms of Kluver Bucy Syndrome include

Answer 6

visual agnosia (cannot see); hyperorality - (taste); hypermetamorphosis - intesively overrreact to visual; placidity - do not show fear/anger; hyperphagia - excessive eating; hypersexuality - sexual contact

Question 7

Hippocampus is

Answer 7

learning and memory

Question 8

Hippocampus is localised to

Answer 8

medial temporal lobe

Question 9

Damage to hippocampal formation can result into

Answer 9

amnesia and can implicate in schizophrenia (with prefrontal cortex)

Question 10

Alzheimer’s disease

Answer 10

Severe atrophy of the
hippocampal formation