Attention accesses multiple reference frames: evidence from visual neglect.
Attention accesses multiple reference frames: evidence from visual neglect.
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注意力访问多个参考系：来自视觉忽视的证据。
DOI：
10.1037//0096-1523.25.1.83
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Tipper,SP
中科院分区：
文献类型：
--
作者：
Behrmann,M;Tipper,SP
对正常参与者的研究表明，选择性注意机制可以同时获得相对于基于位置和基于对象的参考框架定义的空间信息的内部表征。本研究表明，患者单侧空间忽略右半球病变后，在检测信息对侧左侧的位置和对象为基础的空间坐标同时较差。此外，忽视的程度由目标出现在任一参考系中的概率调制;随着在特定参考系中对目标进行采样的概率增加，该参考系中忽视的严重性也增加。这些研究结果表明，注意力可以灵活地和战略性地分配到一个参考框架，这取决于任务的突发事件。
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 frame. These findings suggest that attention can be flexibly and strategically assigned to a reference frame depending on the contingencies of the task.