Chapter 6: PERCEPTION OF SPATIAL LOCATION Flashcards
1
Q
What does our binocular vision allow us to see?
A
vivid perception of depth through the process of stereopsis.
2
Q
What is retinal disparity?
A
The fact that points on objects located at different distances from the observer will fall on slightly different locations on the two retinas; provides the basis fro stereopsis.
3
Q
Where are disparity-sensitive neurons found?
A
Found in the dorsal stream.
4
Q
What are the three cell types that exist in orientation-sensitive neurons?
A
- simple
- complex
- hypercomplex
5
Q
What does area V5 of the extrastriate cortex contain?
A
- neurons that respond to movement
- receives input from striate cortex and superior colliculus
6
Q
what does area MST do?
A
- receives info about movement from V5
- helps analyze optic flow
7
Q
What is the optic flow?
A
- complex motion of points in the visual field caused by relative movement between the observer and the environment
- provides info about the relative distance of the object from the observer and of the relative direction of movement.
8
Q
What does bilateral damage to area v5 produce?
A
-akinetopsia: inability to perceive movement.
