NESC 3227 Lecture Notes - Motor System, Parietal Lobe, General Idea
17 Apr 2013
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Spatial neglect is more common and more severe after right parietal lobe lesions. The inferior parietal region is the region that is most usually the most affected. A right hemisphere lesion will result in left visual field neglect. *visual field defects and neglect often occur together* Very rare to see a pure lesion that leads only to neglect. Two frames of reference in visual spatial neglect. Viewer-centered: everything from the midline over in a person"s field of view is no longer attended to. Object centered: defined by the object that is being viewed, map of ns example. So everything to one side of the fixation point is neglected. Changes to the orientation to the eyes, head and body. So when looking at table, no matter how head positioned, one side still neglected. The neglected hand on the person is neglected whether head is pointing left or right. Viewer-centered neglect is the most common kind.
