Limbic System

Question 1

papez circuit

Answer 1

cingulate-hippocampus-fornix-mammillary bodies-anterior thalamus

Question 2

McClean expanded components of limbic system to also

Answer 2

hypothalamus, septal area, orbitofrontal cortex, nucleus accumbens of striatum, amygdala

Question 3

one mechanism forl limbic system’s involvement in memory and pain/pleasure

Answer 3

lots of cholinergic and opiate receptors

Question 4

common physiologic properties of the limbic system

Answer 4

susceptible to kindling of seizures

lots of cholinergic and opiate receptors

Question 5

stria terminalis connects what

Answer 5

amygdala with septum and hypothalamus

Question 6

perforant path connects

Answer 6

entorhinal cortex with dentate of hippocampus

Question 7

outer core structures of limbic system

Answer 7

entorhinal cortex (anterior temporal lobe)
cingulate gyrus
orbital cortex

Question 8

cingulate cortex rostral part responsible for

Answer 8

emotions and motor

Question 9

cingulate cortex caudal part responsible for

Answer 9

visual spatial, memory

Question 10

orbital frontal lobe responsible for

Answer 10

personality, behavior

Question 11

temporal lobe (hippocampus, parahippocampus, entorhinal cortex) responsible for

Answer 11

memory

Question 12

inner core parts of the limbic system

Answer 12

anterior thalamic nucleus
mammillary body
hypothalamic nuclei
septal nuclei

hypothalamus
amygdala
septum

Question 13

fxn of hypothalamus

Answer 13

pleasure center
autonomics
endocrine

Question 14

amygdala fxns

Answer 14

emotion
social behavior
defense 
sexual behavior
affect of faces

Question 15

septum fxns

Answer 15

sexual behavior, emotions

Question 16

medial forebrain bundle

Answer 16

connection between hypothalamic nuclei and amygdala and brainstem nuclei

Question 17

Kluver Bucy syndrome results in what

Answer 17

more oral activity
hypersexuality
hypermetamophosis-attention to every visual stimulus
placidity-flattened affect, no fear
visual agnosia-lack of recognition of objects, people
bulimia

Question 18

Geschwind syndrome

Answer 18

sensory limbic hyperconnectivity

Question 19

what do you see in pts with Geschwind syndrome

Answer 19

increased attention to philosophical matters
different sexual behavior (hyposexuality)
hypergraphia-lots of writing
viscosity-interpersonal stickiness

emotionalized idea of the world

Question 20

most prominent brain pleasure regions

Answer 20

lateral hypothalamus
medial forebrain bundle (hypothala connects to septum)
nucleus accumbens

Question 21

septal region has what kind of control over sexual behavior

Answer 21

positive

Question 22

hippocampus, dorsal medial nucleus of thalamus, and mammillary nuclei are involved in what kind of memory

Answer 22

declarative memokry (facts and events)

Question 23

major efferent for hippocampal formation

Answer 23

fornix

Question 24

major afferent for hippocampal formation

Answer 24

perforant path

Question 25

akinetic mutism associated with

Answer 25

bilateral anterior cingulate cortex lesions

Question 26

anterior cingulate

Answer 26

integrates thought, motivation, emotion with movement

too much emotional signals–anxiety, OCD

too much motor behavior–tics, impulsive behavior