Association Cortex Lec28 Flashcards Preview

Neuroscience > Association Cortex Lec28 > Flashcards

Flashcards in Association Cortex Lec28 Deck (33):
1

Major Association Cortices (3)

1. temporal (what pathway)

2. parietal (where/when pathway)

3. frontal

2

__ association cortex is involved with Auditory prosody, syntax

temporal

3

frontal association cortex is involved with (3) 

Spatial, object working memory
! Planning
! Withholding responses

4

Association Cortex:

what layers do inputs come into? 

 come in at all levels, except inputs
from the thalamus only go to layer 4
(the granular layer)

A image thumb
5

where does input to the association cortex from the thalamus come into?

only layer 4

6

Outputs from layers 2 and 3 go to 

 other cortical areas

7

layer 2 or 3  cells are bigger, can go
to opposite hemisphere?

layer 3

8

Outputs from layer 5 go to

 subcortical structures like the striatum, superior colliculus,
pons, and tegmentum

9

Outputs from layer 6 go to the ___

thalamus

10

achromatopsia - impaired ___ recognition

color

 

11

• agnosia - impaired object recognition
• achromatopsia - impaired color recognition
• prosopagnosia - impaired face recognition
• alexia - impaired word recognition
• receptive aphasia - impaired word interpretation. Input problem, ex. Wernicke’s • expressive aphasia - impaired word usage. Output problem, ex. Broca’s
• apraxia - object utilization / tool use deficits (

a lesion where would cause all of these? 

temporal association areas/ventral stream

12

apraxia -- deficits with 

object utilization / tool use deficits

 

(impaired motor planning / ability to
carry out learned purposeful movements)

13

The ___ does “Metacognition.”

Prefrontal Cortex

14

___ is the meaningful selection of behavior to achieve desirable outcomes and avoid undesirable ones

metacognition

15

metacognition invovles what 3 things

 integrating sensory info + pausing motor responses + monitoring outcomes

16

define association cortex

everything that is not a primary motor, primary sensory, or premotor area

A image thumb
17

association areas receives inputs from multiple areas and tie them together in some manner that was not possible in the

intiial sensory areas

 

generate more meaningful repsonses

18

all neocortical association areas have at least ___ layers

5, most have 6

19

dorsal is the where stream goes from v1 to

 occipital to parietal

20

damage to __ pathway can cause --

inability to describe context of object, cant
use visuospatial cues
hemispatial neglect

dorsal pathway

21

___ projection: to develop a memory for what
the object is recognized by the ventral stream

ventral prefrontal cortex

22

what happens if primary visual areas are damaged but the temporal association areas are spared

blindsight

pt doesnt know they can see

 

e.g. show them stimuli.. say they cant see then ask them to just name whatever comes to mind and they end up saying what they could see

23

 temproal association areas have to cimmunicates with v1 to
have ___ awareness of what you are seeing

concious

24

___ hemisphere in the parietal love that
drives the intention/attention

right

25

schizophrenia and severe adhd dont
have activation of ___ cortex

prefrontal

26

facial recognition neurons are located in the 

fusiform gyrus (temporal lobe)

27

planning neurons are found in the

frontal cortex

28

attention neurons are found in the

parietal lobe

29

reach neurons are found in the 

parietal lobe

30

grasp neurons are a part of the ___ pathway

what/ventral

31

mirror neurons are found in the

 inferior frontal gyrus 

32

 instructed delay neurons around found in the 

prefrontal cortex

33

Brodmann Areas represent a particular anatomical structure corresponded to a particular ____.

function