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sensation slides - Weber’s Law 10 lbs = Old S 1 For any...

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Sensation Absolute & difference thresholds (JNDs) Weber’s Law Stages in eye evolution All parts & functions of the eye How color vision works All fatigue experiments (e.g. color movement) All demonstrations
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the smallest detectable level of a stimulus Absolute threshold
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The minimum amount by which a stimulus must be changed before it can be reliably distinguished. ( just noticeable difference, jnd) Difference threshold
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Weber’s Law
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Unformatted text preview: Weber’s Law 10 lbs = Old S 1 For any sense, the size of a jnd is proportional to the size of the original stimulus Weber’s Law 10 lbs 11 lbs = 90 lbs x old S 1 old S 2 = new S 1 new S 2 For any sense, the size of a jnd is a proportion of the original stimulus’ size. Relative Motion (motion parallax) (binocular disparity) Retinal Disparity Presbyopia Why we wave goodbye (maybe)...
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