Week 5 - Lecture (09/06) - Sensation and Perception
Week 5 - Lecture (09/06) - Sensation and Perception 4100
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This 3 page Class Notes was uploaded by Leslea Motley on Thursday September 8, 2016. The Class Notes belongs to 4100 at University of Georgia taught by Kara Dyckman in Fall 2016. Since its upload, it has received 4 views. For similar materials see Cognitive Psychology in Psychology (PSYC) at University of Georgia.
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Date Created: 09/08/16
Perception I. Definitions Sensation: a process where receptors in our sensory organs (ears, eyes, skin, taste buds, etc.) receive stimuli from the environment; receptor sends signal to nervous system; receptors receive and detect stimuli and pass the info on to nervous system Perception: related to sensation, but takes info that was received, interprets it, organizes it, and transforms it into something meaningful; the process of interpreting the stimuli [Translated into [Sensory input from electrical and [Through a environment] chemical process called [Neural signals signals of TRANSDUCTIO processed by N] NS] [Resulting in SENSATION] At this point the brain registers the sensory input. [Sensations [Through assigned PERCEPTION] meaning]. We have interpreted the sensations that we experienced. II. Why is this important for behavior? The way we act or behave is base don our perception of some sensation (i.e., reaction to temperature); the same raw environmental stimuli can be perceived in different ways among people. III. Video: Illusions narrated by Neil Patrick Harris IV. Heuristics: not innate, learned behaviors obtained from the environment; simple, efficient rules, learned or hard-coded by evolutionary processes, that have been proposed to explain how people make decisions, come to judgments, and solve problems typically when facing complex problems or incomplete information Below are examples of heuristics, they are learned through experience, and referred to as general rules of thumb V. Object Perception: How do we determine which objects are present? VI. Gestalt Grouping Principle Figures taken from reading ‘Closure’ – seeing a ‘gapped’ circle figure as a circle VII. Laws of common fate VIII. Picture of the Black/Blue vs. White/Gold dress controversy Explanation: Light travels through eyeball, through retina, to the very back – ‘photoreceptors’, known as, rods and cones (allow you to see color) What you see is ‘light energy’, but colors that we perceive correspond to different bands of wavelength;(Blues are shorter wave lengths, reds are longer wavelengths). The majority of people have three types of cones The dress in the picture has two varying light sources; one coming from the lower right side, and the other coming from the top right. It has to do with both illumination and context. IX. Ishihara Test for Colorblindness 8% males and 1% females X. Video Humans rely on vision over any other sense. “Rubber hand illusion”
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