Class Notes - 10-10-07

Class Notes - 10-10-07 - Psychology Class Notes Vision...

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Psychology – Class Notes – 10/10/07 Vision Transduction Conversion Source: Photons – enter the cornia, pupil, then lens – photons of light energy hit retina (the specialized membrane of cells on the back of the eye – rods and cones) when the photons hit the back of the eye – stimulates rods and cones to release messengers – transduced into a neural signal o Curvature and thickness of the lens brings the image into focus and since light rays travel in straight lines, the curvature of the lens causes the rays to deflect/ bend and the top portion of the picture is inverted The picture on the back of the eye is actually upside down and reversed The brain however, automatically adjusts to the environment - gradual Properties of the light stimulus – is transduced into a neural signal Back part of the eye in embryonic Back part of the eye- very similar to neural tissue Color does not influence muscular properties of the Iris Iris is a muscle that contracts according to different levels of light. o
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Class Notes - 10-10-07 - Psychology Class Notes Vision...

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