Unraveling mechanisms for expert object recognition: Bridging brain activity and behavior
Unraveling mechanisms for expert object recognition: Bridging brain activity and behavior
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DOI：
10.1037//0096-1523.28.2.431
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发表时间：
2002-04-01
影响因子：
2.1
通讯作者：
Tarr, MJ
中科院分区：
文献类型：
--
作者：
Gauthier, I;Tarr, MJ
在专业技能训练期间，多次测量了梭状面部区域(FFA)对物体变化的行为敏感度和对新物体(贪婪)的反应。随着专业知识的增加，对3种转换的敏感度增加：(A)对象的一半未对齐的结构变化，(B)对象部分被移动的结构变化，以及(C)用来自不同对象的部分替换对象部分。作者发现，整体结构效应可以产生于在特征或部分方面有所不同的对象表征。此外，整体包容效应与右侧FFA的变化相关。从行为和大脑激活的角度来看，人脸识别对整体处理的依赖可能并不是独一无二的。
Behavioral sensitivity to object transformations and the response to novel objects (Greebles) in the fusiform face area (FFA) was measured several times during expertise training. Sensitivity to 3 transformations increased with expertise: (a) configural changes in which halves of objects were misaligned, (b) configural changes in which some of the object parts were moved, and (c) the substitution of an object part with a part from a different object. The authors found that holistic- configural effects can arise from object representations that are differentiated in terms of features or parts. Moreover, a holistic-inclusive effect was correlated with changes in the right FFA. Face recognition may not be unique in its reliance on holistic processing, measured in terms of both behavior and brain activation.