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Online Lecture 7 - Vision

Online Lecture 7 - Vision - Transduction In sensation...

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1 Vision Why do we see afteriamges? Josh Wede Psych 100 Transduction In sensation, transformation of stimulus energy into neural impulses. Phototransduction: Conversion of light energy into neural impulses that brain can understand. Visible Spectrum The Stimulus Input: Light Energy Both Photos: Thomas Eisner Light Characteristics 1. Wavelength (hue/color) 2. Intensity (brightness) 3. Saturation (purity) Wavelength (Hue) Hue (color): dimension of color determined by wavelength of light. Wavelength the distance from the peak of one wave to the peak of the next. Wavelength (Hue) Different wavelengths of light result in different colors. 400 nm 700 nm Long wavelengths Short wavelengths Violet Indigo Blue Green Yellow Orange Red
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