Corticohippocampal Circuit - Anatomy Flashcards

1
Q

Broadman Areas

A

common notation for identifying cytoarchitechtonically and functionally distinct subregions of the cortex

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2
Q

Broadman Areas

A

distinct anatomical regions by numbers

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3
Q

we have — broadman areas

A

360

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4
Q

9 and 46

A

broadman dlPFC

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5
Q

44, 45, 47

A

broadman vlPFC

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6
Q

44, 45

A

broadman Broca’s area

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7
Q

language production

A

what is broca’s area for

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8
Q

22

A

broadman wernicke’s area

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9
Q

language aphasia - understanding speech

A

what is wernicke’s area for

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10
Q

11 and 12

A

broadman vmPFC

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11
Q

9, 10, 32

A

broadman dmPFC

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12
Q

24

A

dACC

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13
Q

brain encodes / creates function by

A

cytoarchitecture

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14
Q

cytoarchitecture is composed of

A

corticocolumns and corticolayers

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15
Q

specific areas of visual aspects in our brain

A

retinotopy

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16
Q

recreate visual, auditory, sensory world in our brain

A

retinotopy

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17
Q

80% of PFC is

A

excitatory glutamatergic pyramidal neurons

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18
Q

___ glutamatergic pyramidal neurons

A

excitatory

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19
Q

excitatory ____ pyramidal neurons

A

glutamatergic

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20
Q

excitatory glutamatergic ___ neurons

A

pyramidal

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21
Q

20% of PFC is

A

inhibitory GABA interneurons

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22
Q

___ GABA interneurons

A

inhibitory

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23
Q

inhibitory __ interneurons

A

GABA

24
Q

inhibitory GABA __ neurons

A

inter

25
Q

these neurons are key for executive function of dlPFC

A

inhibitory GABA interneurons

26
Q

our refined and controlled behaviors generally emerge as a function of discrete, stimulus-dependent pattern of selective inhibition

A

sculpting in negativity

27
Q

how our body is represented in the brain

A

homunculus

28
Q

affector regions where mind-body interfaces connect with PFC and help integrate our body with our brain

A

homunculus

29
Q

new homunculus model name

A

integrate-isolate model

30
Q

old homunculus model name

A

penfield’s homunculus

31
Q

pyramidal neurons are (intrinsic/extrinsic)

A

intrinsic

32
Q

gabaergic neurons

A

shape output and eventually input

33
Q

executive control foundation

A

staggering density and variety of afferent and efferent connections maintained throughout the horizontal layers of dlPFC

34
Q

sensory association areas question “–” and “–”

A

where and what

35
Q

sensory association areas are a __ in information processing from __ to __

A

gradient, unimodal, heteromodal

36
Q

heteromodal

A

complicated levels of processing - shape our behavior

37
Q

dlPFC is a __ hotspot for info processing

A

heteromodal

38
Q

list all the unimodal hotspots for info processing (5)

A

auditory cortex
posterior parietal cortex
motor structures
medial temporal structures
inferior temporal cortex

39
Q

rapid growth over the first years of life isn’t about

A

neurogenesis

40
Q

neurogenesis is

A

neuron growth/generation

41
Q

rapid growth over the first years of life is in terms of

A

increased connections between neurons

42
Q

over the first 6 months of human life

A

synaptic density increases
explosion in synaptic connectivity

43
Q

from age 5 to 20

A

synaptic pruning/thinning

44
Q

activity dependent pruning

A

shaving connections to ultimately make a highly functional system

45
Q

this is important for our ability to solve problems/identify patterns, make decisions that are contributing to our success

A

signal-to-noise ratio

46
Q

for a healthy signal-to-noise ratio,

A

signal > noise

47
Q

people who later develop schizophrenia have

A

advert pruning of cortex

48
Q

last place to mature in our brain is

A

dlPFC

49
Q

dlPFC continues to develop until

A

mid 20s

50
Q

over the first 20 years dlPFC forms as it figures out

A

what’s noise and what’s signal

51
Q

these parts almost stay the same since birth because they’re so vital for our survival (6)

A

amygdala
nucleus accumbens
caudate
palladus
putamen

52
Q

hippocampus location

A

posterior to amygdala

53
Q

info leaves the hippocampus through the

A

tail

54
Q

these parts are hippocampal formation

A

entorhinal cortex and parahippocampal cortex

55
Q
A