Investigating face-property specific processing in the right OFA.

Investigating face-property specific processing in the right OFA.
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DOI:
10.1093/scan/nsq015
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发表时间:
2011-01
影响因子:
4.2
通讯作者:
Kadosh RC
Kadosh RC
中科院分区:
医学3区
文献类型:
--
作者:
Kadosh KC;Walsh V;Kadosh RC

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在神经面部处理网络中,右枕面部区域(rOFA)起着重要作用,有人认为它接收来自其他面部敏感区域的前馈和重入反馈。它的功能作用是不太好理解的,是否rOFA参与了面部刺激的初步分析,或在详细的整合不同的面部属性仍然是一个悬而未决的问题。本研究使用经颅磁刺激(TMS)研究rOFA在不同面部属性(身份,表情和凝视)方面的功能作用。实验1表明,rOFA整合了不同的面孔属性的信息:性能的身份和表情的联合处理后TMS的rOFA下降,而没有损害被视为在凝视处理。在实验2中,我们研究了这种效应的时间动态。我们指出受损的综合计算到170毫秒后刺激呈现。总之,结果表明,经颅磁刺激的rOFA影响的面部身份和表情在中潜伏期处理阶段的整合处理。
Within the neural face-processing network, the right occipital face area (rOFA) plays a prominent role, and it has been suggested that it receives both feed-forward and re-entrant feedback from other face sensitive areas. Its functional role is less well understood and whether the rOFA is involved in the initial analysis of a face stimulus or in the detailed integration of different face properties remains an open question. The present study investigated the functional role of the rOFA with regard to different face properties (identity, expression, and gaze) using transcranial magnetic stimulation (TMS). Experiment 1 showed that the rOFA integrates information across different face properties: performance for the combined processing of identity and expression decreased after TMS to the rOFA, while no impairment was seen in gaze processing. In Experiment 2 we examined the temporal dynamics of this effect. We pinpointed the impaired integrative computation to 170 ms post stimulus presentation. Together the results suggest that TMS to the rOFA affects the integrative processing of facial identity and expression at a mid-latency processing stage.
DOI: 10.1037/0096-1523.26.2.527
发表时间: 2000-04-01
影响因子: 2.1
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