Attention accesses multiple reference frames: Evidence from visual neglect

被引:98
作者
Behrmann, M [1 ]
Tipper, SP
机构
[1] Carnegie Mellon Univ, Dept Psychol, Pittsburgh, PA 15213 USA
[2] Univ Wales, Dept Psychol, Bangor LL57 2DG, Gwynedd, Wales
关键词
D O I
10.1037/0096-1523.25.1.83
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Research with normal participants has demonstrated that mechanisms of selective attention can simultaneously gain access to internal representations of spatial information defined with respect to both location- and object-based frames of reference. The present study demonstrates that patients with unilateral spatial neglect following a right-hemisphere lesion are poorer at detecting information on the contralateral left side in both location- and object-based spatial coordinates simultaneously Moreover, the extent of the neglect is modulated by the probability of a target's appearing in either reference frame; as the probability of sampling a target in a particular frame of reference increases, so does the severity of neglect in that flame. These findings suggest that attention can be flexibly and strategically assigned to a reference frame depending on the contingencies of the task.
引用
收藏
页码:83 / 101
页数:19
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