chance-04.27 - NEUROBIOLOGY & BEHAVIOR BIO SCI N110...

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NEUROBIOLOGY & BEHAVIOR BIO SCI N110 Spring Quarter 2009 April 27, 2009
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orderly representation of visual space on the retina
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retina to LGN projections are organized so that there is also an orderly representation
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to cortex from ipsilateral eye (layers 2,3,5) from contralateral eye (layers 1,4,6) Organization of LGN LGN has center-surround receptive fields Lateral Geniculate Nucleus + - - - - -
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d Organization of LGN Damage to parvocellular layers: - impairs visual acuity - impairs color perception - does not affect motion perception Damage to magnocellular layers - reduces ability to see rapidly changing stimuli - does not dramatically affect visual acuity or color perception
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visual stimulus Striate Cortex V1 Primary Visual Cortex Human, Primates Area 17 in Cats
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LGN receptive fields - center-surround V1 simple cell receptive fields orientation selectivity spatial frequency (width) selectivity – How wide is the bar spatial phase selectivity
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This note was uploaded on 04/14/2010 for the course BIO SCI BIO N110 taught by Professor Leon,chance&parker during the Spring '09 term at UC Irvine.

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chance-04.27 - NEUROBIOLOGY & BEHAVIOR BIO SCI N110...

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