Abstract
Spatial neglect after unilateral brain damage involves a dramatic loss of awareness for objects located in contralesional space (e.g. toward the left following right damage), despite preservation of early sensory processing. Although disorders of spatial awareness can result from disparate brain lesions, we have known for more than half a century that the right inferior parietal lobule (IPL) is the primary anatomical site associated with contralesional neglect in humans. However, in monkeys, a full-blown neglect syndrome is associated with ablation of the superior temporal gyrus (STG) and not the IPL, whose damage produces a milder and fleeting form of the disorder.
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