Psychology Notes Week 4
Psychology Notes Week 4 PSY 1113
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This 1 page Class Notes was uploaded by Ryan Henry on Tuesday February 9, 2016. The Class Notes belongs to PSY 1113 at University of Oklahoma taught by Jenel Cavazos in Fall 2015. Since its upload, it has received 7 views. For similar materials see Elements of Psychology in Psychlogy at University of Oklahoma.
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Date Created: 02/09/16
Psychology Notes Week 4 Sensation and perceptions: ● Sensation: the activation of sense organs ba a stimulus (light waves, sounds waves, skin pressure) ○ Like the room is 72 degrees ● Perceptions: the interpretation, analysis, and integration of stimuli (assign meaning) ○ Like the room feels hot to some and cold to others Sensation and perception do not necessarily cause one another. Perception without sensation: ● Synesthesia: the production of a sense impression relating to one sense or part of the body by stimulation of another sense or part of the body. ○ “Bro, I can smell colours and taste smells” ● Phantom limb: the sensation that an amputated or missing limb(even an organ, like the appendix) is still attached to the body and is moving appropriately with other body parts. Top down and bottom up: ● Topdown processing: using an understanding of the big picture to reason about the individual pieces (when you’re good at something) ● Bottomup processing: using individual pieces of information to make sense of the “big picture” (when you’re not good at something) Absolute threshold: ● The smallest thing you can observe (like the quietest noise we can hear, or the dimmest light we can see and how far away) Difference Threshold: ● 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 Subliminal perception: ● The detection of information below the level of conscious awareness ● Subliminal presentation can have an effect (small, subtle) Selective Attention: ● focusing on a specific aspect of experiences while ignoring others ○ Cocktail party effect: ability to focus on one voice among many ○ Or focusing on particular stimuli (such as own name or “special words” like sex) ● Change Blindness: failure to detect changes in the environment (gorilla in the background video)
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