Orienting to Extinguished Signals in Hemispatial Neglect |
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| Authors: | Shai Danziger Alan Kingstone & Robert D Rafal |
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| Institution: | Department of Neurology and Center for Neuroscience, University of California, Davis, and VA Medical Center, Martinez, California,;Department of Psychology, University of Alberta,;Department of Neurology and Center for Neuroscience, University of California, Davis, and VA Medical Center, Martinez, California |
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| Abstract: | This study tested for spatial orienting effects, without awareness to signals presented in the neglected hemifield of 2 hemispatial-neglect patients. The experiment adapted a spatial precuing paradigm for measuring the effects of visual attention. Contralesional orienting hastened subsequent target detection at the location of an extinguished precue. These findings validate a claim that orienting can occur independently of overt detection and indicate that location information is registered in the neglected field. |
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