Lec6 - Psy1 Introductory Psychology Prof. Stuart Anstis PhD...

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Psy1 Introductory Psychology Prof. Stuart Anstis PhD Denise Cai MA TODAY: SENSATION & PERCEPTION Shiloh Krieger MA
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Psy 1 Depth & color
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Perception is an active process, involving “effort after meaning”
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We attribute meaning, even purpose, to moving dots… Heider.Michotte.Mov
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1. Pe rc e iving  c o lo r Finding  fruit Finding  m a te s
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Mystery of brown  Other factors: illumination
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11 Part of electromagnetic spectrum Sunlight
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Demo: Fluorescence converts invisible ultraviolet into visible light
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“Blue”  cones “Red” cones Relative responsiveness of cones Wavelength (nm) 1.0 0.5 0.0 400 500 600 “Green”  cones Rods
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First images of the three kinds of cones in the living human  retina Colors used here are just the popular labels for the sensitive range of  each kind of cone  Actually opposite to the colors reflected by the cones  
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perceived color varies with ratio of responses of the three cones 400 500 600 700 1.0 0.5 0.0 Intensity Wavelength Blue Light CONE RESPONSES Blue b g r Tomato Tomato
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This note was uploaded on 04/10/2010 for the course PSYC 1 taught by Professor Stuartantsis during the Spring '08 term at UCSD.

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Lec6 - Psy1 Introductory Psychology Prof. Stuart Anstis PhD...

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