lect0401

lect0401 - Cogs 160 Neural Coding in Sensory Systems Cogs...

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Cogs 160: Neural Coding in Sensory Systems Cogs 272: Computational Models of Sensory Coding Prof. Angela Yu Department of Cognitive Science April 1, 2010 http: www.cogsci.ucsd.edu/~ajyu/Teaching/Cogs160_sp10/cogs160_272.html
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Grading Participation (reading, discussion): 25% Mini thought essays ( 1 page , weekly): 75% Extra credit: respond to a bonus question
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The Eye and the Retina Light is focused by the cornea and the lens onto the retina, a thin layer of neural tissue at the back of the eye which contains photoreceptors. Photoreceptors transduce light into neural signals and pass their signals on to the brain.
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Anatomy of the Retina
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Retinal Ganglion Cells Left cell is ON-center/OFF-surround. Right cell is OFF-center/ON-surround.
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Neurophysiology of On/Off Pathways light
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Neurophysiology of On/Off Pathways
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This View is Far Too Simplistic! Left cell is ON-center/OFF-surround. Right cell is OFF-center/ON-surround.
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THE ROLE OF THE RETINA IN VISION Jake Olson
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WHAT DOES THE RETINA DO? Popular opinion: Filter But does it also compute?
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Anatomy of the Retina Outer Plexiform Layer Inner Plexiform Layer
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Retinal Ganglion Cells Left cell is ON-center/OFF-surround. Right cell is OFF-center/ON-surround.
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Just passes the visual image to the cortex for the cortex to processes it. Simple spatiotemporal ±ltering. Adapts to light
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lect0401 - Cogs 160 Neural Coding in Sensory Systems Cogs...

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