NESC 3227 Lecture Notes - Apraxia, Depth Perception, Lobectomy
17 Apr 2013
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Document Summary
Space perception is understanding what"s around you in space. Kosslyn was the first to describe a laterality in space perception between the two hemispheres. Lateral specialization of two kinds of spatial relations. Coordinate means: right hemisphere, angles and distances between two points, uses concrete rather than abstract distances, these calculation allow us to localize a stimulus precisely in space. A more categorical task, therefore you use your left hemisphere. If you"re asked to draw a complex figure, you can"t after left, right, or bilateral parietal lesion. Individuals with either left or right hemisphere parietal lobe lesions. Individual had to look at a sample figure, then in test there was either a coordinate change (distance decrease), categorical change (change in penguin direction), or both were manipulated. Left parietal lesion patients seemed to have more impairment in categorical changes than right, only in errors, not reaction time.
