PSYCH 9A Lecture Notes - Lecture 31: Subjective Constancy, Correspondence Problem, Visual Cortex
14 Jun 2016
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Chapter 5 perception: motion perception: what is it doing, retinal motion, some cells in the visual cortex respond to image movements on the retina by firing at an increased rate when- ever movement is present. Whenever you move your eyes or turn your head, you unconsciously compute the shift in the retinal image that your own motion will produce, and you cancel out this amount of movement in interpreting the visual input. World appeared to jump around whenever they tried to move their eyes just what canceling-out theory would predict. Paralyzed eyes couldn"t follow the command, so no retinal shift took place. You"ve stopped at a red light and then, without warning, the car alongside you starts moving forward. What goes with what: perceptual selection: attention, selection, humans: eye movement is the major means of orienting, peripheral vision informs us that something"s going on, say, in the upper-left section of our field of vision.
