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PSYC*1000 Psychology in Modules - Module 18 Summary Notes

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PSYC 1000
Benjamin Giguere

Module 18Vision and Perceptual Organization and InterpretationOctober 14 2013Vision Our eyes receive light energy and transduce transform it in to neural messages that our brain then processes into what we consciously seeThe Stimulus Input Light EnergyWhen seeing colours you are not seeing particles of that colour you are seeing pulses of electromagnetic energy that our visual systems perceive as red Two physical characteristics of light help determine our sensory experience of them1Wavelength distance from one wave peak to the next determines the hue2Intensity amount of energy in light waves determined by amplitude influences brightnessThe Eye Light enters through the cornea then the pupil which is surrounded by the iris Lens behind pupil to focus images on the retinaRods retinal receptors that detect black white and gray necessary for peripheral and twilight vision when cones dont respond Cones retinal receptor cells that are concentrated
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