Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PSYCH 2NF3 > Occipital Lobe (test 2) > Flashcards

Occipital Lobe (test 2) Flashcards

1
Q

where is the LGN

A

in the thalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where is the first place processing starts

A

V1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

division on the lateral surface

A

no clear division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

division on the medial surface

A 
parieto-occipital surface
calcarine sulcus (much of V1 is here)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

division of the ventral surface

A
  • lingual gyrus (V2 and V3)

- fusiform gyrus (hV4)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how many layers in V1

A

6+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

how is area V1 organized

A

laminar organization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

results of cytochrome oxidase staining in V1

A
  • blobs: colour perception

- interblobs: form and motion perception (orientation sensitive)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

results of cytochrome oxidase staining in V2

A
  • thin stripes: colour perception

- thick stripes: form and motor perception

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

V4

A

the color vision which helps in the perception of movement, position, and depth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

V1

A
  • primary visual cortex
  • input from LGN
  • output to all other levels
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

V2

A
  • secondary visual cortex
  • works with V1
  • output to all other levels
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

output to the parietal lobe

A

dorsal stream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

output to the inferior temporal lobe

A

ventral stream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

output to the superior temporal sulcus

A

STS stream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Doral stream

A
  • to parietal lobe
  • visual guidance of movements
  • where pathway
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

ventral stream

A
  • to the inferior temporal lobe
  • giving name or label to object
  • what pathway/object perception
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

STS stream

A
  • visuospatial
  • some language processing
  • detection of animate vs. inanimate
  • complex thought
  • theory of mind (guess what others are thinking about)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

V1 blobs connect to what

A

hV4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

V4 vs hV4

A

V4 is monkey

hV4 is human

21
Q

V1 interblobs connect to what

A

V5/MT

22
Q

V1 and V2 connect to what

A

V3

23
Q

lesions in V1 cause

A

blindsight

24
Q

percent of cortex with vision-related properties

A

55%

25
Q

V4

A

color

26
Q

V5

A

motion-sensitive area

27
Q

V3

A

the shape of objects in motion

28
Q

5 categories of vision

A
  • vison for action
  • action for vision
  • visual recognition
  • visual space
  • visual attention
29
Q

vision for action

A
  • dorsal stream
  • ducking, catching, movement
  • bottom-up processing
30
Q

action for vision

A
  • guide attention to guide your movement
  • eye movements
  • visual scanning
  • we focus on facial features
  • top-down processing
31
Q

visual recognition

A
  • what are you looking at?

- temporal lobes

32
Q

visual space

A
  • egocentric space (location in relation to the viewer)
  • allocentric (location in relation to another object)
  • parietal lobes
33
Q

visual attention

A
  • how we don’t get overwhelmed

- pay attention to important characteristics

34
Q

Milner-Goodale Model

A

differentiating hierarchal parts of the visual system
2 pathways
1) object recognition
2) action

35
Q

a lesion in the visual cortex most likely to be …

A

macular sparing

36
Q

monocular blindness

A
  • loss of vision in one eye

- optic nerve or retina damage

37
Q

bitemporal hemianopia

A
  • loss of vision in moth temporal fields

- tumor of pituitary gland applying pressure to optic chiasm

38
Q

_______ nasal hemianopia

A
  • loss of vision in one nasal field

- damage to the lateral chiasm

39
Q

homonymous hemianopia

A
  • loss of vision in one visual field
  • can be from damage to LGN, V1 or optic tract
  • largest lesion
40
Q

quadrantanopia

A
  • loss of vision to 1/4 of the visual field
  • lesion near calcarine sulcus
  • medium lesion
41
Q

scotoma

A

blind spot

small lesion visual cortex

42
Q

scotoma

A

blind spot

small lesion visual cortex

43
Q

prosopagnosia

A
  • facial agnosia
  • cannot recognize previously known faces
  • bilateral damage to the temporal cortex
44
Q

alexia

A
  • dyslexia
  • inability to read
  • damage to left fusiform and lingual areas
45
Q

visuospatial agnosia

A
  • topographic disorientation
  • inability to find way around
  • damage to occipitotemporal regions
46
Q

apperceptive

A
  • unable to copy or match shapes
  • gross bilateral damage to the occipital cortex
  • simultagnosia (unable to perceive more than one object at a time)
47
Q

associative

A
  • can perceive objects but cannot identify them

- lesion to the anterior temporal lobe

48
Q

macular sparing

A
  • helps to differentiate between lesions of the optic tract and thalamus from cortical lesions
  • the muscular part of V1 might receive double the vascular supply from medial and cerebral artery

PSYCH 2NF3 (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions