E2 Chapter 6: Recognition Flashcards

Exam 2

1
Q

Our amazing ability to recognize an object in countless situations

A

Object constancy

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2
Q

Visual information emanating from an object varies as a function of following factors (3)

A
  1. Viewing position
  2. Illumination conditions
  3. Context
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3
Q

Sensory information depends highly on your ________________

A

Viewpoint

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4
Q

The brain uses it’s _____________ to create assumption of visual scenes

A

experience

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5
Q

A visual illusion that uses an anti-parallel wall to make a person seem much larger than another person

A

The Ames room

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6
Q

Recognition is largely ______________ to illumination

A

insensitive (a dog in the shade is registered the same as a dog in darker conditions)

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7
Q

Objects are rarely seen in _______________

A

Isolation

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8
Q

People see objects associated with

A

it’s expected environment

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9
Q

Much visual information goes in the ______, which is in the ___________ lobe

A

V1; occipital

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10
Q

_____________ carry visual information to regions of the parietal and temporal cortex that are involved in visual recognition

A

Fasciculi

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11
Q

The Ventral (What) pathway is also called the _________________ Stream

A

Occipitotemporal

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12
Q

The Dorsal (Where) pathways is also called the ______________ stream

A

Occipitoparietal

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13
Q

VenTral is the __________ pathway

A

whaT

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14
Q

The ventral stream is specialized for

A

Object perception/recognition (determining what we are looking at)

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15
Q

The Dorsal stream is specialized for

A

Object spatial perception (determining where the object is)

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16
Q

The dorsal stream is also called the ___________ pathway

A

Where

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17
Q

Are the “what” and “where” pathways limited to just vision?

A

NO they are also seen in audition

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18
Q

Inhibit anterior auditory region caused deficits

A

in the pattern discrimination task

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19
Q

Inhibit posterior auditory region caused deficits in

A

The localization task

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20
Q

Patient DF had damage to which pathway? What did this do?

A

Ventral; Cannot name objects, recognize faces, or distinguish a square from a rectangle

21
Q

Patient DF could

A

Use vision to guide actions

22
Q

People with damage to the __________ stream can see objects but don’t integrate their vision with their arms/legs movement

23
Q

Ventral or Dorsal damage?
Patient cannot accurately reach out to grasp an object

A

Dorsal (deals with object localization)

24
Q

The inability to process sensory information even though the sense organs and memory are not defective

25
Failure of perception that is limited to the visual modality (patients can perceive color/shape/motion, but cannot recognize objects/identify their uses)
Visual Agnosia
26
What are the two types of agnosia we are focused on?
Visual and auditory processing
27
What are the three major subtypes of visual agnosia?
1. Apperceptive 2. Integrative 3. Associative
28
A form of agnosia associated with deficits in operation of higher-level perceptual analyses
Apperceptive
29
A patient can recognize an object when it is in a usual perceptive viewpoint, but cannot when it is shifted to an uncommon one What type of visual agnosia is this?
Apperceptive
30
If a patient can perceive parts of an object but cannot integrate them as a coherent whole, they most likely have what subtype of visual agnosia
Integrative
31
An inability to link a percept with its semantic information, such as its name, property, or function
Associative visual agnosia
32
A patient that can perceive objects in their visual field but cannot understand their meanings probably has what type of agnosia
Associative visual agnosia
33
The matching-by-function test tests _____________ knowledge
Conceptual
34
What tests are participants shown three images and asked to point to the two with similar functions
The matching-by-function
35
Impairments on the matching-by-function test are common in which agnosia
Associative visual asnosia
36
The failure to recognize faces
Prosopagnosia
37
Prosopagnosia patients usually have lesions in which pathway
Ventral
38
An abrupt loss in the ability to recognize faces caused by a neurological incident
Acquired prosopagnosia
39
A lifetime impairment in face recognition that cannot be attributed to a known neuro condition
Congenital prosopagnosia (CP)
40
Monozygotic twins are __________________ in cog functioning
Very similar
41
Neuroimaging shows that there is electrical activity in the FFA in CP patients. Why can they not see faces?
The actual pathways of perceiving info in the FFA is impaired
42
Austism patients show _________________ activity in the FFA
hypoactivity
43
___________________________ support the hypothesis that different brain areas are used for processing face and object recognition seperately
Double dissociation
44
C.K. had no _____________ recognition, but was able to see
Object; faces
45
Facial recognition is accomplished by
Holistic processing
46
Inversions of pictures to make some goofy ass images
Thatcher Illusion
47
Who are more likely to have prosopagnosia if the other has it: Monozygotic or Dizygotic
Monozygotic
48
What do monozygotic twins having a predisposition chance of CP prove?
That there is a genetic component to prosopagnosia
49