PSYA01H3 Chapter Notes - Chapter 6: Visual Cortex, David H. Hubel, Saccade

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Perception a rapid, automatic, unconscious process by which we recognize what is represented by the information provided by our sense organs. 2nd level in middle of parietal lobe and lower part of temporal lobe. Placed microelectrodes on animal brains and presented them visual stimuli. Microelectrodes are small wires with points that detect neuron activity. Neurons detected different things (i. e. some detect horizontal lines, vertical lines, color, etc) Receptive field the portion of the visual field in which the presentation of visual stimuli will produce an alteration in the firing rate of a particular neuron. Different areas of the visual association cortex deal with different levels of vision. From the neurons that detect different things -> send info to particular areas of the visual association cortex to be analyzed. If the primary visual cortex is damaged, the person is blind in that area (remember how what we see is mapped on the brain) Damage to visual association cortex damages perceptive ability.

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