BIOL3833 Week 14: Neurobiology of Vision Part 2

 BIOL3833 Week 14:  Neurobiology of Vision Part 2  BIOL3833 Week 14:  Neurobiology of Vision Part 2 - Start

2020-04-07 1K 1 0 0

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Encoding in the retina. Encoding: Ganglion cells have center/surround receptive fields. Rods send information to . magnocellular. pathway. Cones send information to . parvocellular. pathway. Lateral Geniculate Nucleus. ID: 776334 Download Presentation

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BIOL3833 Week 14: Neurobiology of Vision Part 2




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Presentations text content in BIOL3833 Week 14: Neurobiology of Vision Part 2

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BIOL3833

Week 14: Neurobiology of Vision Part 2

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Encoding in the retina

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Encoding: Ganglion cells have center/surround receptive fields

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Rods send information to

magnocellular

pathway

Cones send information to

parvocellular

pathway

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Lateral Geniculate Nucleus

Meissirel

C et al. PNAS 1997;94:5900-5905

©1997 by National Academy of Sciences

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Primary Visual Cortex

Hubel Wiesel LGN neuronsSimple Cell (V1)

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Creating simple cells

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Hypercolumns

in Primary Visual Cortex (V1)

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Cortical vision processing: Two “streams”

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Two different sources of motion illusion

Superior

colliculus

Visual cortex

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What does the superior

colliculus

do?

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+

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BLUE

+

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+

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Fatiguing neurons in MT (V5)

http://michaelbach.de/ot/mot-adaptSpiral/index.html

http://www.youtube.com/watch?v=tVgOLWVYytM

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Split-depth illusions

Reveal the role of competition between networks of motion-sensitive neurons

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Top-down processing

Our experience and expectations change what we perceive

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Bistable perceptions

Our experience and expectations change what we perceive

And reveal competing networks of neurons

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