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Psychology Chp. 4 Notes

by: Payton Chance

Psychology Chp. 4 Notes PSYC 1010

Marketplace > University of Oklahoma > Psychlogy > PSYC 1010 > Psychology Chp 4 Notes
Payton Chance
GPA 3.5
Elements of Psychology
Jenel Cavazos

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About this Document

Sensation and Perception. More of chp. 4 to come next week
Elements of Psychology
Jenel Cavazos
Class Notes
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This 0 page Class Notes was uploaded by Payton Chance on Sunday February 7, 2016. The Class Notes belongs to PSYC 1010 at University of Oklahoma taught by Jenel Cavazos in Summer 2015. Since its upload, it has received 15 views. For similar materials see Elements of Psychology in Psychlogy at University of Oklahoma.


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Date Created: 02/07/16
Chapter 4 Sensation and Perception Sensation the activation of sense organs by a stimulus Light waves sound waves skin pressure Perception the interpretation analysis and integration of stimuli Assigning meaning Synesthesia a neurologically based condition in which stimulation of one sensory or cognitive pathway leads to automatic involuntary experiences in a second sensory or cognitive pathway perception without sensation Ex Phantom Limb the sensation that an amputated or missing limb or organ is still attached to the body and is moving appropriately with other body parts TOP DOWN AND BOTTOM UP PROCESSING Top Down Processing using an understanding of the big picture to reason about the individual pieces ex looking at a car and saying thats a steering wheel a seat belt If you re good at something you usually use top down BottomUp Processing using individual pieces of information to make sense of the big picture Ex puzzle looking at the pieces that make the whole picture if you39re not really good at something you use this Absolute Threshold the smallest intensity of a stimulus that must be present in order for it to be detected 50 of the time Difference Thresholds just noticeable difference Smallest level of change in a stimulus that can be detected Weber s Law The just noticeable difference is a constant proportion of the intensity of the initial stimulus Ex a cell phone going off in a quiet room you will hear it A cell phone going off in a party you will not hear it SUBLIMINAL PERCEPTION Subliminal perception the detection of information below the level of conscious awareness Subliminal presentation can have an effect small subtle Shortterm ATTENTION AND PERCEPTION Selective Attention focusing on a specific aspect of experience while ignoring others Cocktail party effect ability to focus on once voice among many We focus on highly practiced and familiar stimuli own name Stroop effect Inattentional Blindness failure to detect unexpected events when attention is engaged by another task ex the gorilla video Changed Blindness failure to detect changes in the environment


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