Bio365-36-042610 (1) - or Off-center on-surround Receptive...

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Receptive fields of ganglion cells
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Receptive field size Receptive field size increases with eccentricity (distance from the fovea) Receptive field size depends on: The size of photoreceptors that provide input to the ganglion cell The number of photoreceptors that provide input to the ganglion cell (convergence) Rods have much higher convergence than cones
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R+G+B or Receptive fields of P cells Receptive fields of M cells L + M + S L + M + S
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Ganglion cells Ganglion cells provide the output from the retina Ganglion cells use center surround organization to encode stimulus contrast Two receptive field types: On-center off-surround
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Unformatted text preview: or Off-center on-surround Receptive field size increases with eccentricity Two types of ganglion cells: M and P Differ in receptive field size and type of cone input Layer 1,4,6 receives input from the contra lateral eye Layer 2,3,5 receive information from the epsilateral eye LGN Six layers Three contralateral (left eye) - 1, 4, 6 Three Ipsilateral (right eye) - 2,3,5 Two Magno (M-cells) layers (1,2) Four Parvo (P-Cells) layers (3-6) Center surround Large feedback from V1 Hubel...
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Bio365-36-042610 (1) - or Off-center on-surround Receptive...

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