Brainscape's Knowledge GenomeTM

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


See full index

Neuropsychology > Perception and High Level Vision > Flashcards

Perception and High Level Vision Flashcards

1
Q

Modularity Hypothesis states…

A

Activity of multiple cog. processors or modules

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

MH- Uniformity=?

A

All humans have same cog. architecture (so we can generalise)

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

MH- Subtractivity=?

A

Brain damage impairs modules but doesn’t change anything

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

MH- Isomorphism=?

A

Some correspondence between the mind and the brain

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

V1 (primary visual cortex) receives input from the…

A

Lateral Geniculate Nucleus (LGN)- first processing area of cortex

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

Blindsight may be caused by…

A

Damage to occipital lobe (V1)- cannot see in parts of their visual field

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

Riddoch (1917) found…

A

some processing does take place in the blind spots

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

Poppel, Held and Frost (1973) found…

A

Patients with blind spots looked towards the flash that they should not have been able to see

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

Unilateral Visual Neglect (hemispatial neglect, hemiagnosia, spatial neglect etc.)

A

Usually on right side (affects left vision) after right cerebral injury

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

Anosognosia

A

Person is not aware of their disablility

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

Bisiach found when asking patients to imagine the cathedral…

A

Patients with left neglect dont report seeing building on the left (neglect is found on a mental image too

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Unilateral visual neglect occurs from…

A

damage to the internal spatial framework, this interferes with the ability to form mental representations on left side. (BISIACH)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Riddoch and Humphreys said neglect is…

A

An attentional deficit

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

Visual Agnosia is split up into…

A

Apperceptive and Associative agnosia

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

Patients with Apperceptive Agnosia…

A

Cannot accurately copy shapes or recognise them

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

Patients with Associative Agnosia…

A

Can accurately copy shapes but can’t recognise them. There is a disconnect between perception and “stored associations”

17
Q

Marr’s Object Recognition Model includes…

A

Primal sketch, 2 1/2-D Sketch and 3D representation

18
Q

(Ellis+Young, 1988) Initial representation is…

A

Low level analysis of image, damage=difficult to perceive

19
Q

(Ellis+Young, 1988) Viewer centred representation is…

A

Higher level object representation, Damage=can’t form viewer centred representation, can;t differentiate between shapes, copy

20
Q

(Ellis+Young, 1988) Object centred representation is…

A

High level representation w/o a viewpoint. Damage=can’t form object centred representation. Can’t recognise same object from different perspectives.

21
Q

(Ellis+Young, 1988) Object recognition units are…

A

Stored descriptions of known objects, Damage=can’t differentiate between real and made up objects

22
Q

(Ellis+Young, 1988) Semantic system is…

A

Stored meanings of all known objects, Damage=unable to attach meaning to objects

23
Q

(Ellis+Young, 1988) Speech output lexicon is…

A

Part of language processing system, Damage=language impairment

24
Q

Optic Aphasia is …

A

Patient can’t name visually presented objects but can do it of they touch the object or hear about it

25
Q

Associative Visual Agnosia is…

A

The object have no meaning to the patient even if they can perceive it

26
Q

Representation deficit is…

A

A defect to semantic memory. Patients cannot name visually presented objects

27
Q

Integrative Agnosia is…

A

Apperceptive/ Associative agnosia symptoms but visual abilities intact

28
Q

Occipitotemporal projection/pathway interconnects…

A

The striate, prestriate and inferior temporal areas (ventral stream)

29
Q

Occipitoparietal pathway interconnects…

A

The striate and inferior parietal areas (dorsal stream)

30
Q

Bilateral removal of inferior temporal cortex causes…

A

Severe object discrimination deficit

31
Q

Bilateral removal of posterior parietal cortex results in…

A

Severe landmark discrimination

32
Q

Ventral stream is for…

A

Object recognition (“what” pathway)

33
Q

Dorsal stream is for…

A

Spatial vision (“where” pathway)

34
Q

Optic Ataxia is caused by…

A

Damage to the posterior parietal cortex (dorsal stream)

35
Q

Optic ataxia is…

A

Cannot make precise visually guided movements towards objects they can see.

36
Q

Visual Form Agnosia is caused by…

A

Damage to the ventral stream

Neuropsychology (4 decks)

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