PSYC 4600 Lecture Notes - Lecture 6: Fusiform Gyrus, Habituation, Prosopagnosia
11 Dec 2016
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Document Summary
How low level vision creates a holistic image as perception. Low level areas to high level areas increases in complexity colours, edges, to higher cognitive areas where we find the meaning and context about the object. Decrease in neural firing when the same object is presented again purple vs. grey. When a new object is presented, it returns to baseline purple vs. yellow. Brain region a habituation to the same object, increase in firing with novel object this region. Brain region b habituation is non-discriminated attenuated firing with same object and with novel object this region does not know the difference knows the difference. Shape/form (high level) but not contour (low level) Same shape, different contour (more contour/contrast in a) in b they varied what was considered the object vs. the foreground (one part appears more forward than the rest/vice versa) A objects are completely different, change both contrast (low) and shape (high)
