Lecture 2-04-08 (CH 3)

Lecture 2-04-08 (CH 3) - Reasons for difference in...

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Chapter 3 Lecture – Sensation and Perception Sensing the World Around Us Stimulus Energy that produces a response in a sense organ Varies in both type and intensity Sensation The response by our sense organs to stimuli from the environment Perception The sorting out, interpretation, analysis, and integration of stimuli received by our sense organs and brain Signal Detection Theory Explains role of psychological factors in determining the presence of a stimulus Why do we report what is not there and do not report what is there?
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Unformatted text preview: Reasons for difference in perception: Suggestion Attention Surprise Emotion • Fear • Anger • Anxiety Absolute Threshold The smallest intensity of a stimulus that must be present for the stimulus to become a sensation Weber’s Law (Veybor) A just noticeable difference is in constant proportion to the intensity of an initial stimulus Sensory Adaptation An adjustment in sensory response capacity after prolonged exposure...
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