ENDOGENOUS AND EXOGENOUS CONTROL OF VISUAL SELECTION
ENDOGENOUS AND EXOGENOUS CONTROL OF VISUAL SELECTION
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DOI：
10.1068/p230429
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发表时间：
1994-01-01
期刊：
影响因子：
1.7
通讯作者：
THEEUWES, J
中科院分区：
文献类型：
--
作者：
THEEUWES, J
视觉注意研究中最基本的问题之一是视觉选择在多大程度上受刺激的属性或观察者的意图、目标和信念控制。 在选择性注意运作之前，前注意过程会执行一些基本分析，将视野分割成功能感知单元。 关键问题是，对这些知觉单位的注意力分配是受观察者的内生控制（意图、目标、信念）还是受刺激的外生控制。 本文讨论了受试者在任务中寻找特定“基本”特征（例如寻找独特的颜色、形状或亮度）时注意的内源性和外源性控制的证据。 在本综述中，建议这些类型的搜索任务的选择性取决于刺激属性的相对显着性。 结论是，视觉系统自动计算基本特征的差异（例如形状、颜色或亮度的差异），并且在刺激维度上占据最高显着性位置的视觉信息被外生地传递到负责进一步刺激分析的“中心表示”。 讨论了对当前发现的替代解释以及由当前方法产生的初步推测。
Among the most fundamental issues of visual attention research is the extent to which visual selection is controlled by properties of the stimulus or by the intentions, goals, and beliefs of the observer. Before selective attention operates, preattentive processes perform some basic analyses segmenting the visual field into functional perceptual units. The crucial question is whether the allocation of attention to these perceptual units is under the endogenous control of the observer (intentions, goals, beliefs) or under the exogenous control of stimulation. In this article evidence is discussed regarding the endogenous and exogenous control of attention in tasks in which subjects search for a particular 'basic' feature (eg search for a unique colour, shape, or brightness). In the present review it is suggested that selectivity in these types of search tasks is dependent on the relative saliency of the stimulus attributes. It is concluded that the visual system automatically calculates differences in basic features (eg difference in shape, colour, or brightness) and that visual information occupying the position of the highest saliency across stimulus dimensions is exogenously passed on to the 'central representation' that is responsible for further stimulus analysis. Alternative explanations of the present findings and tentative speculations resulting from the present approach are discussed.