Psych 1101, Chapter 6 (Part1)
Psych 1101, Chapter 6 (Part1) PSYC 1101 B
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This 2 page Class Notes was uploaded by Nathalie mautes on Saturday February 27, 2016. The Class Notes belongs to PSYC 1101 B at Georgia Regents University taught by jane hodges in Spring 2016. Since its upload, it has received 40 views. For similar materials see General Psychology in Psychlogy at Georgia Regents University.
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Date Created: 02/27/16
Intro to Sensation and Perception Psychology 1101 Sensation includes your 5 senses: sense of touch, smell, taste, seeing, hear. Perception Perceives, organizes, makes sense of what you just tasted or saw etc Your perceptions can sometimes makes you see things and interpret them differently for what it actually is which is known as optical illusions. 2 Types of Perception Bottomup Processing: this type of perception is data driven and requires no thinking because it is something you already know. For example: looking at a chair and recognizing that is a chair Top down Processing: this type of perception requires thinking. For example: making out pictures from the clouds or the stars up in the sky. 3 Steps to Perception Step 1: Reception A physical stimulus from your senses travel to your receptor cells Step 2: Transduction Those receptor cells send neural signals up to the brain Step 3: Transmission Those signals sent to the brain are now used for interpretation. For example: A physical stimulus of odor goes through your nose to your receptor cells. (Reception), then the receptor cells send the neural signals up to the brain (Translation), finally that smell can be interpreted in the brain of what exactly you smelled. Thresholds are your responses to a stimulus, which can include: Absolute: Which refers to the minimal level of stimulus needed to detect a stimulus 50% of the time. Ex: You can feel a fly land on you vs. a mosquito landing on you. Subliminal: Which is beneath our conscious awareness and can sometimes cause you to behave or think differently. Ex: If something is flashed quickly on a screen you cannot process it quick enough, therefore making you think you did not see anything. Sensory adaption When you become adapted to a physical stimulus. For example, being nose blind to the way your house smells, but to someone else they can recognize a smell. Different Threshold When you can detect the minimal difference 50% of the time. For example, the difference between 50 shades of grey (literally) Webers Law: 2 stimuli can be perceived as different must differ by a certain percentage. For Example: a 10 pound bowling ball with a sheet of paper on it vs. a 10 pound bowling ball with a wet towel on it. There might not be too much of a difference but there is some type of difference.
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