comparing retinal ganglion cells, LGN, and V1 Flashcards
1
Q
what shape are most retinal ganglion cells?
A
circular
2
Q
what kind of light are retinal ganglion cells responsive to?
A
small spots of light but not diffusing light.
3
Q
what kind of light are LGN and Layer 4 responsive to?
A
-bars of light, lines, and sign wave gradients.
-not responsive to small spots of light or diffusing light.
-mostly for edge detection
4
Q
2 classes of V1 neurons
A
simple and complex
5
Q
simple cells
A
have a clear on and off area
-respond to lines/bars of specific orientation
6
Q
complex cells
A
cannot determine strictly on and off areas as easily as simple cells
-their RFs are larger
-binocular
-3d vision starts from complex cells
7
Q
Receptive fields in the foveal area of the LGN and V1 are ___ to those in periphery.
A
smaller.
