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PSY 100: Week 4 class notes

by: Natalie Notetaker

PSY 100: Week 4 class notes PSY 100-01

Natalie Notetaker
UW - L

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About this Document

These notes are what was covered in lecture
General Psychology
Class Notes
Intro to Psychology
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This 2 page Class Notes was uploaded by Natalie Notetaker on Tuesday October 4, 2016. The Class Notes belongs to PSY 100-01 at University of Wisconsin - La Crosse taught by Staff in Fall 2016. Since its upload, it has received 2 views. For similar materials see General Psychology in Psychology at University of Wisconsin - La Crosse.

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Date Created: 10/04/16
Cutaneous Senses (touch) The skin is filled with receptors for pressure, temperature, and  pain. Chemical Senses:  Smell Humans have approximately 5­10 million olfactory cells  (analogous to photoreceptors) Chemical Senses:  Taste Roughly 1 million taste receptors are contained in 10,000 taste  buds distributed on the tongue, inner cheeks, throat, and palates. The Vestibular System Semi­circular canals:  endolymph filled tubes containing hair cells that bend as endolymph flows by. Otolith organs:  fluid­filled sacks containing hair cells that are  stimulated by calcium rocks (otoliths) as the head moves.  register head tilt and linear acceleration. Motion sickness is caused by a disconnect between signals from the visual system and the vestibular system. The Perceptual Process Our perceptions of the world are constrained by our mind’s  interpretation of incoming sensations. Attention is often a necessary component for perceptual  processing. Depth & Size Perception The visual system uses multiple cues to identify relative depth  and size in the environment, including... Pictoral cues  occlusion  relative size  texture gradients  linear perspective Motion parallax:  as one moves through the environment, nearer  stationary objects move faster than further stationary objects. Perceptual Constancy Lightness constancy:  the relative stability of lightness perception under differing illumination intensities. Color constancy:  the relative stability of color perception under  differing wavelengths.  a red shirt appears red under tungsten (yellow) light bulbs,  and appears to be the same shade of red in the sunlight  (which contains all wavelengths i.e. white). That’s it!  Thanks, and have a wonderful semester!


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