Shared Flashcard Set

Details

Visual Processing
Visual Processing and Occipital lobe
19
Psychology
Graduate
04/22/2009

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Cards

Term
T/F All visual processes operate in parallel sequence.
Definition
False; some operate in serial
Term
Damage to what area is associated with monocular blindness?
Definition
retina or optic nerve (diagram label #2)
Term
What is a homonymous hemianopia? Damage to what area causes it?
Definition
loss of visual field in both eyes; signals post-chiasm cut (caused by tumor, hemorrhage, or trauma) (diagram label #5)
Term
_____ occurs only after cortical lesions. Is not present in lesions of the _____ or _____.
Definition
macular sparring; optic tract or thalamus (diagram label #7)
Term
_____ are small blindspots in the visual field. T/F Patients are often unaware of these problems.
Definition
scotomas; true b/c of "filling in"
Term
V1 is also called the _____ cortex.
Definition
striate
Term
Without V1 what results?
Definition
No conscious awareness of vision (i.e. blindsight)
Term
The _____ is the "where" pathway through the parietal cortex. It unconsciously encodes shape, movement, and location.
Definition
dorsal stream
Term
The _____ is the "what" pathway through the temporal cortex. The _____ hemisphere recognizes symbolic objects (like letters and numbers) and the _____ hemsiphere recognizes faces.
Definition
ventral stream; left; right
Term
The _____ stream may integrate "action" and "recognition" to form perceptions of others' actions and spatial memory.
Definition
Superior temporal sulcus
Term
Which stream is responsible for vision for action (visually guided movement)? For visual recognition? What is responsible for eye movements?
Definition
dorsal; ventral; frontal lobes
Term
_____ hemisphere assigns meaning. _____ governs global perception.
Definition
Left; right
Term
People with _____ agnosia have difficulty copying objects, may have lack of insight, and usually results from bilateral damage to the occipital lobes.
Definition
apperceptive
Term
Bilateral parieto-occipital damage results in _____ syndrome.
Definition
Balint's
Term
_____ agnosia is the loss of semantic meaning of objects and is associated with damage to the "what" stream in the temporal lobe.
Definition
associative
Term
Prosopagnosia is the inability to recognize what?
Definition
faces and cars
Term
Disorders of the _____ stream result in right-left confusion and inability to perform 3-D movements.
Definition
Where
Term
_____ is the loss of conscious of spatial or personal space despite functioning biology.
Definition
neglect
Term
What typically causes neglect?
Definition
R-parietal stroke
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