09_Perception_Action1_Neuroanatomy_Presentation

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Unformatted text preview: Click to edit Master subtitle style Introduction to cognitive science Psych 102/COGST 101/LING 170/PHIL 191/ COMS 101 Optics Retina Lateral Geniculate Nucleus (LGN) Primary Visual Cortex (Striate Cortex) (V1) Extrastriate Cortex (V2) “What” and “Where” Systems The Visual System • System to control light and focus it on a sensitive surface Optics • Pinhole camera • Small hole focuses light in correct location • But small hole = not much light! Optics • Lens & Iris camera • Iris allows more or less light • Adjustable lens focuses light • But depth of field problem • Big hole = shallow area of focus Optics • The human eye is a lens & iris system • But we rarely experience the depth of field of our own eye! Optics Optics Optics Optics • Photosensitive surface at pack of eye Retina • Rods • Black & White vision • Luminance detection Retina • Cones • Color Vision • 3 types of cones • Red • Blue • Green • Luminance detection for a particular wavelength Retina •...
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This note was uploaded on 02/20/2009 for the course COGST 101 taught by Professor Bienvenue,b during the Spring '08 term at Cornell.

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09_Perception_Action1_Neuroanatomy_Presentation - Click to...

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