PSY 324 Chapter Notes - Chapter 6: Ganglion Cell, Optic Chiasm, Lateral Geniculate Nucleus
17 Apr 2016
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Document Summary
The brain codes visual information in terms of which neurons respond, their amount of response, and the timing of their response (it does not store exactly what you see) Much of sensory coding depends on the frequency of firing. Law of specific nerve energies the nature of perception is defined by the pathway over which the sensory information is carried (i. e. the origin of sensation is not important) Brain interprets any activity of a given sensory neuron as rep. sensory info to which that neuron is tuned. Light enters the pupil, the centre of the iris and is focused by the lens (adjustable) and cornea (not adjustable) and then projected into the retina that contains visual receptors. Light from left side of the world strikes the right half of the retina and v-v. Light from above strikes the bottom half of the retina and v-v. Light passes through the ganglion cells and bipolar cells and then to the receptors.
