Schacter PSYC 2003 student outline Chapter 4

Schacter PSYC 2003 student outline Chapter 4 - Chapter 4...

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Chapter 4 Sensation and Perception The Doorway to Psychology *Sensation *Perception *Transduction *Psychophysics Measuring Thresholds *Measuring thresholds *boundary between two psychological states *Absolute threshold *minimal intensity needed to just barely detect a stimulus *Just noticeable difference *Weber’s Law (constant proportion) 1
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Signal Detection *Signal detection *sensory signals face competition for detection from “noise” *“Noise” comes from both outside and inside the person *Signal detection theory *Perceptual sensitivity Sensory Adaptation and Subliminal Perception *Sensory adaptation *adaptation to current conditions over time *emphasize change in responding to sensory events rather than perceiving constant stimulation *Subliminal perception *existence vs. practical effects 2
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Vision: Sensing Light *Visual acuity *Sensing light *Properties of light waves *length = hue *amplitude = brightness *purity = saturation Vision: The Human Eye *Cornea *Pupil *Iris *Lens *Retina *Accommodation 3
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This note was uploaded on 04/14/2011 for the course PSYC 2003 taught by Professor Swanner during the Spring '07 term at Arkansas.

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Schacter PSYC 2003 student outline Chapter 4 - Chapter 4...

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