SEPARABLE MECHANISMS IN FACE PROCESSING - EVIDENCE FROM HEMISPHERIC-SPECIALIZATION
SEPARABLE MECHANISMS IN FACE PROCESSING - EVIDENCE FROM HEMISPHERIC-SPECIALIZATION
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DOI：
10.1162/jocn.1991.3.1.42
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发表时间：
1991-12-01
影响因子：
3.2
通讯作者：
KOENIG, O
中科院分区：
文献类型：
--
作者：
HILLGER, LA;KOENIG, O
这篇文章解决了三个问题，在面对加工：第一，面对加工主要是由右半球，还是左，右半球机制发挥重要作用？ 第二，这些机制与一般视觉处理中涉及的机制相同，还是专门用于面部处理？ 第三，如何更准确地描述这些机制的特征，如视觉解析？ 我们探讨了这些问题，使用划分视野的方法在四个实验。 实验1和2提供的证据表明，左半球和右半球的机制都参与了面部加工。 在实验1中，右半球的优势被发现为相同和不同的审判时，相同的面孔是相同的，不同的面孔不同的所有三个内部面部特征。 实验2复制了右半球的优势，相同的试验，但显示了左半球的优势，不同的试验时，三个面部特征之一的目标和探针面之间的差异。 实验3表明，右半球的优势，在实验2中获得的直立面孔时，面孔被倒置消失。 这一结果表明，右半球有专门处理直立面孔的机制，尽管无法确定这些机制是否完全是面部特异性的。 实验3还提供了证据，左半球的机制，在面部加工任务中使用的通用视觉机制，不限于特定类别的视觉刺激。 在实验4中，当任务是找到一个面部特征是相同的目标和探测面之间时，左半球的优势。 我们认为，左半球的优势，在面部处理是由于本地元素的面部的解析和分析。
This article addresses three issues in face processing: First, is face processing primarily accomplished by the right hemisphere, or do both left- and right-hemisphere mechanisms play important roles? Second, are the mechanisms the same as those involved in general visual processing, or are they dedicated to face processing? Third, how can the mechanisms be characterized more precisely in terms of processes such as visual parsing? We explored these issues using the divided visual field methodology in four experiments. Experiments 1 and 2 provided evidence that both left- and right-hemisphere mechanisms are involved in face processing. In Experiment 1, a right-hemisphere advantage was found for both Same and Different trials when Same faces were identical and Different faces differed on all three internal facial features. Experiment 2 replicated the right-hemisphere advantage for Same trials but showed a left-hemisphere advantage for Different trials when one of three facial features differed between the target and the probe faces. Experiment 3 showed that the right-hemisphere advantage obtained with upright faces in Experiment 2 disappeared when the faces were inverted. This result suggests that there are right-hemisphere mechanisms specialized for processing upright faces, although it could not be determined whether these mechanisms are completely face-specific. Experiment 3 also provided evidence that the left-hemisphere mechanisms utilized in face processing tasks are general-purpose visual mechanisms not restricted to particular classes of visual stimuli. In Experiment 4, a left-hemisphere advantage was obtained when the task was to find one facial feature that was the same between the target and the probe faces. We suggest that left-hemisphere advantages shown in face processing are due to the parsing and analysis of the local elements of a face.