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Essay

Perception

Essay specific features

 

Issue:

Psychology

 

Written by:

Kim G

 

Date added:

January 22, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

7 / 1764

 

Was viewed:

5607 times

 

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Essay content:

Our brain then uses this information to enable us to see the world around us. (Goldstein, 1999). The two kinds of photoreceptors, rods and cones, have two separate functions: CONES Activated in high light Responsible for daylight and colour vision RODS Activated in low light Responsible for night vision and colour blind Rods and cones both activate bipolar cells (a bipolar cell is a neuron) which then send nerve impulses to the brain...
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One cone cell generally activates one bipolar cell, whereas numerous rod cells share and activate one bipolar cell. Therefore, no matter how many rod cells are stimulated they activate relatively few bipolar cells. Visual acuity (the detail in which objects are seen) is directly related to the number of bipolar cells activated...
displayed 300 characters

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