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Chapter 5: Perception

by: rachel kelliher

Chapter 5: Perception 1004

rachel kelliher
Virginia Tech

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Lecture Notes for chapter 5 Perception
Introduction to Psychology
Benjamin DeVore
Class Notes
25 ?




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Popular in Psychology (PSYC)

This 3 page Class Notes was uploaded by rachel kelliher on Friday September 16, 2016. The Class Notes belongs to 1004 at Virginia Polytechnic Institute and State University taught by Benjamin DeVore in Fall 2016. Since its upload, it has received 5 views. For similar materials see Introduction to Psychology in Psychology (PSYC) at Virginia Polytechnic Institute and State University.

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Date Created: 09/16/16
[PP5: Perception- 9/13/16] ~Two different people looking at the same thing, will see 2 completely different things- had different perception ~Perception defined  The process of becoming aware of the external world through info gather by the sense organs  Experience, learning, malleability, plasticity= interchangeable- things that change our perception  Distal stimuli that produces physical En-> sensory receptor-> irritation and neuo energy= proximal stimuli-> neural energy-> perception o Perception can lead to learning which leads to cognitive processes which can lead back to perception o The proximal stimuli= your reaction to the stimuli- Physical energy in you ~Perception  Learning and perception o Nativities: born with it or you aren’t going to get it  Ex Descartes o Empiricists: perception= learned active process  “Sum product of all your pervious experiences”  “active process of testing hyptho. Of the world”  Ex= Helmholtz  Research on visual plasticity o Visual perception research:  Birds: pecking patterns of new hatched chicks when a piece of corn is placed at them- birds beck at corn but don’t really get it- puck around it- with experience the pecking pattern becomes more precise and accurate  Conclusion: perception= learned/ based off experience  Frog : rotated the eye 180: lead to the idea that perception was hard wired- not malleable  Kittens:  Experiment 1: reared in the dark- results to take away experience of vision= serious perceptual deficiencies o Conclusion= light affects lamination of the visual pathway& Light affects cellular maturation  Experiment 2: reared with translucent googles- light diffused to reach retina o Conclusion: serious perceptual deficits: could not follow moving objects, could not perceive depth  Humans: humans blind from birth with cataracts- couldn’t see: surgery needed to allow light to diffuse  Restoring vision-> automatic perception: needed to learn perception  Classic research: Spinnelli  Kittens reared with googles-> restricted visual input o Could either see: bright dots, vertical lines or horizontal lines  When tested the cortex responded well to previously experienced stimuli when tested with an electrode BUT were blind to new stimuli (dots, H/V line)  Molyneur: visual reorganization a passive process  Reversing primes inverted what you saw  Within 48 hours participants learned how to use glasses o Executive group: learned how to interact with environment with glasses- learned how to interact with environment  Learned perception o Yoked: passively pull through environment  Nothing learned  Conclusion: perceptual learning is an active process and there is a correlation among sensory and motor systems  Visual depth perception o Binocular cues: retinal disparity o Monocular cues:  Superposition: objects that are interposed/ superposes= most likely in front of the other objects  Relative size  Height in plane  Gradient of texture  Laws of perceptual organization o Figure ground perception: right brain especially is constantly trying to see a figure against a back ground o Law of continuity: more probability that a line will follow a con’t path then take a sudden turn o Law of proximity o Law of similarity: things that are similar are grouped together o Law of closure: really sensitive to back of right brain  Illusions o Misinterpretation of our perceptual world during active hypothesis testing  Occur when we accept the incorrect hypotheses o His favorite  Induced movement illusions  Little things are more likely to move then big things  Frame of reference effects what you see  Moon & Painting illusion  VW illusion  More likely to be on a head on crash if you are driving a smaller car- will think that the car is further away ten it actually is o


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