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UCSD PSYC 125 Exam Questions & Answers 2024/2025 CA$13.03   Add to cart

Exam (elaborations)

UCSD PSYC 125 Exam Questions & Answers 2024/2025

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UCSD PSYC 125 Exam Questions & Answers 2024/2025 What happens when info enters the V1 of the occipital lobe? - ANSWERSInfo splits into 2 streams: dorsal and ventral Dorsal: Posterior, superior, occipital to parietal lobe Ventral: posterior, inferior, occipital lobe to temporal lobe What...

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  • October 22, 2024
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UCSD PSYC 125 Exam Questions &
Answers 2024/2025

What happens when info enters the V1 of the occipital lobe? - ANSWERSInfo splits into 2 streams: dorsal
and ventral



Dorsal: Posterior, superior, occipital to parietal lobe

Ventral: posterior, inferior, occipital lobe to temporal lobe



What does the dorsal visual stream do? - ANSWERSWHERE pathway



Deals with:

-Spatial location

-Topographical orientation: knowing where you are in space

-Planning and coordination of movement (think of a football game and how imp player throws ball)



What are the deficits of the dorsal visual stream? - ANSWERSNeglect, apraxia, and left-right
discrimination problems



What is neglect? - ANSWERSCan be unilateral or hemi-spatial



If unilateral:

You only have one space, usually inattentive to left visual space, thus having a right hemisphere lesion



Examples of neglect in everyday life - ANSWERS-Trouble reading as reading is from left to right

-Don't eat the left side of a plate (can be temporary or people will adapt)

, Visual aspects of neglect - ANSWERSRight hemisphere pays attention to both the left and right hemi-
space, while the left hemisphere pays attention only to the right hemisphere



Tests for visual neglect - ANSWERS-Drawing task: clock, flower. Cram all info into right side of clock, only
draw right hand side of flower



-Line bisection task: random lines are pre-drawn and you are asked to to draw a bisection. Neglect shows
bias of bisection line to the right



Apraxia - ANSWERSinability to perform purposeful motions (i.e., pantomime)

-motions are spatial so dorsal stream! frontal lobe deals with planning



Left-right discrimination problems - ANSWERSinability to identify left and right

-confusion with spatial judgment



What does the ventral visual stream do? - ANSWERSWHAT pathway

Deals with:

-object recognition

-matches visual shape to internal representation



What are the deficits of the ventral visual stream? - ANSWERSVisual agnosia



What are the discrete regions in the ventral visual stream? - ANSWERSV4 (color)

FFA (face)

Object



V4 (ventral) - ANSWERSability to identify color



FFA (ventral) - ANSWERS-dedicated to faces, also visual expertise

-visual expertise examples: bird watchers, dog show judges

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