期刊
COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE
卷 1, 期 4, 页码 330-343出版社
SPRINGER
DOI: 10.3758/CABN.1.4.330
关键词
-
资金
- NIH [F32 MH11791, RO1 MH54246]
- James S. McDonnell Foundation [97-17]
Posterior parietal cortex lesions have been associated with both hemispatial neglect and spatial-updating deficits. Currently, the relation between these processes remains poorly understood. We tested the ability of parietal patients with neglect to update remembered target locations during passive whole-body rotations. The rotations and manual pointing responses were executed with and without vision. During the rotation, the remembered location stayed on the same side of the body midline or crossed the midline. Parietal patients generally underestimated rotations, as compared with control groups, but updated targets equally well on either side of the body midline, regardless of the amount of updating required. Once parietal patients have localized a target, they can use self-motion information to update its location, even if it passes into the region they typically neglect. This lack of contralesional updating effects contrasts with impairments in eye position updating found in previous work with parietal patients.
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