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What we see

by: Shoshana Tamir

What we see Psyc 10300-02

Shoshana Tamir

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About this Document

First, we looked at mind trick pictures and then they explained why it tricks the brain and how.
General Psychology
Class Notes
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This 2 page Class Notes was uploaded by Shoshana Tamir on Tuesday September 13, 2016. The Class Notes belongs to Psyc 10300-02 at Ithaca College taught by Warren in Fall 2016. Since its upload, it has received 5 views.


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Date Created: 09/13/16
Class Notes Week 4 Monday Ch 3 Psychophysics 50% of the time you see both photos (old & young Women) Different threshold: min difference between 2 stimuli required for detection 50%  of the time, also called just noticeable difference. Weber’s Law:  Computes the just noticeable difference  The change needed is proportional to the original intensity of the stimulus  The more intense the stimulus the more change is needed to notice the  difference Signal Detection Theory  Signal detection theory states that observing a stimulus involves more than  just detecting a stimulus  It is a decision­making process involving no sensory factors including  personality, alertness, expectation, and motivation  Sensory Adaptation   So why have we studied sensory differences and secsory sensitivity  Sensory adaptation – our sensitivity to unchanging stimuli disappears  over time How we see! The lens Focuses the light onto the retina Wavelength and Colors  Waves of light (we only see the middle colors) Rods and Cons Cons­ receive color (middle of the eye) Rods­ Dim light (side of the eye) Blind Spot Mind takes a tricky image and fill in the spots that would make the most sense  even though it’s not there To be continued 


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