Visual Perception and Visual Agnosia Q: What is the difference between sensation and perception? Give examples in visual, somatosensory, and auditory modalities
Where does sensation occur in brain? Perception? Q: What does the visual system do in perceiving a visual stimulus? Initially, separate processing of form, color, movement, and location.
What would selective deficits of each of these be like? Selective loss of form perception?
Selective loss of color perception?
Selective loss of movement perception?
Selective loss of location perception? Visual Perception and Visual Agnosia Focus today on identifying objects, rather than perception of movement or location. Q: What does visual system start with in identifying objects? In retina?
In primary visual area? Q: What does visual system do with this info? Distinguish features Combine features into shape information Match form to prior visual knowledge of form, regardless of angle/illumination or distance Access meaning Visual perception in the brain Q: Where in the brain does perception occur? | |
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