psych106-11

psych106-11 - Lecture 11 (Feb 14 th ): VISION (#2) Lecture...

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Unformatted text preview: Lecture 11 (Feb 14 th ): VISION (#2) Lecture Outline 1) Orientation Tuning 2) Color Processing 3) Movement Processing Dont worry about SHAPE PATHWAY (including Inter-Blobs and Inter-Stripes) Dont worry about simple, complex and endstopped neurons Primary Visual Cortex (or Visual Area 1, or V1) Orientation Selectivity Orientation Action Potentials/Second V1 Orientation Tuning in Visual Cortex COLOR VISION 1) Spectral (Single ) Colors: ROYGBIV (750 390 nm) 2) Broadband (multiple s) Colors: e.g., white is equal energy of all wavelengths Two Types of Colors : Most things in the world are (2), not (1) = 660 Energy Energy Spectrum SUNLIGHT A m p l i t u d e = 580 nm (yellow) Space Wavelength (nm) 450 500 550 600 650 400 "Green" "Red" "Blue" Energy Spectrum E n e r g y Wavelength (nm) 450 500 550 600 650 400 "Green" "Red" "Blue" Energy Spectrum E n e r g y Why do things look colored? (roughly) white light Wavelength (nm) 450 500 550 600 650 400 "Green" "Red" "Blue" Energy Spectrum of Light ReFected off Shirt E n e r g y Refected goes into your eye Absorbed stays in the pigment oF the shirt Light Absorption by Photoreceptors (Cones and Rods) Outersegment...
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psych106-11 - Lecture 11 (Feb 14 th ): VISION (#2) Lecture...

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