DOES VISUAL-ATTENTION SELECT OBJECTS OR LOCATIONS
DOES VISUAL-ATTENTION SELECT OBJECTS OR LOCATIONS
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DOI：
10.1037/0096-3445.123.2.146
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发表时间：
1994-06-01
影响因子：
4.1
通讯作者：
FARAH, MJ
中科院分区：
文献类型：
--
作者：
VECERA, SP;FARAH, MJ
许多研究支持基于位置的注意力选择，但 J. Duncan (1984) 提出的数据支持在形状辨别任务中基于对象的选择。注意会选择物体或地点吗？我们确认邓肯的任务会从空间不变的对象表示中进行选择，而不是从基于分组的位置表示中进行选择。接下来我们询问这一发现是否是由于基于位置的过滤造成的？结果再次支持基于对象的选择。最后，我们证明了当邓肯的对象用于提示检测任务时，结果与基于位置的选择一致。这些结果表明，可能不存在单一的注意力机制，这与邓肯最初的主张一致，即基于对象和基于位置的注意力选择并不相互排斥。相反，注意力限制可能取决于执行给定任务时使用的刺激表征的类型。
Much research supports location-based attentional selection, but J. Duncan (1984) presented data favoring object-based selection in a shape discrimination task. Does attention select objects or locations? We confirmed that Duncan's task elicits selection from spatially invariant object representations rather than from a grouped location-based representation. We next asked whether this finding was due to location-based filtering; the results again supported object-based selection. Finally, we demonstrated that when Duncan's objects were used in a cued detection task the results were consistent with location-based selection. These results suggest that there may not be a single attention mechanism, consistent with Duncan's original claim that object-based and location-based attentional selection are not mutually exclusive. Rather, attentional limitations may depend on the type of stimulus representation used in performing a given task.