September 14 - September 14, 2010 Sensation &...

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September 14, 2010 Exam on Thursday – 45 MC text and lecture A brief history of sensation and perception Psychophysics Scientists used to believe that humans were passive, but more research has shown that in many ways, the sensations we take in are highly influenced by other parts of the brain Gibson’s perception: all sensations influence our perceptions Purely visual information can actually be influenced by other information that we are experiencing. Vision Photo reception Cones are responsible for color vision 3 types – corresponding to 3 colors Where the optic nerve goes to the brain is the gap, and it’s responsible for a gap in our vision Rods and cones are not evenly distributed Cones are focused on the center of the retina – meaning that it’s hard to seen color unless it’s directly in front of you. There can be many rods that feed into a single ganglion cell
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September 14 - September 14, 2010 Sensation &...

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