Revisiting the role of the fusiform face area in visual expertise.
Revisiting the role of the fusiform face area in visual expertise.
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DOI：
10.1093/cercor/bhi006
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发表时间：
2005-08
期刊：
影响因子：
3.7
通讯作者：
Yaoda Xu
中科院分区：
文献类型：
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作者：
Yaoda Xu
先前在一项功能性磁共振成像（fMRI）研究中报道（Gauthier et al., 2000, Nat. Neurosci., 3:191-197），具有视觉专业知识的物体（汽车和鸟类）比非专业刺激更强烈地激活右侧梭形面部区域（FFA），并且有人认为右侧 FFA 涉及专业知识特异性而不是面部特异性视觉处理。然而，这种专业效应可能是由于专家利用了刺激的“面孔”：鸟类有面孔，汽车的四分之三的正面视图类似于面孔。这种专业知识效应也可能是由有偏见的注意力调节引起的：通过块状功能磁共振成像设计，专家可能会更多地关注专业知识块而不是非专业刺激块。在这项研究中，在事件相关的功能磁共振成像设计中使用不类似于面部的侧视汽车图像和鸟类图像，最大限度地减少注意力调节，在汽车和鸟类专家中观察到右侧 FFA 的专业知识效应（尽管基线偏差使鸟类专业知识效应不太可靠）。这些结果与 Gauthier 等人的结果一致，并表明正确的 FFA 参与处理非面部专业视觉刺激。
It has previously been reported (Gauthier et al., 2000, Nat. Neurosci., 3:191-197) in a functional magnetic resonance imaging (fMRI) study that objects of visual expertise (cars and birds) activate the right fusiform face area (FFA) more strongly than non-expertise stimuli, and it was argued that the right FFA is involved in expertise specific rather than face specific visual processing. This expertise effect, however, may be due to experts taking advantage of the 'faceness' of the stimuli: birds have faces and three-quarter frontal views of cars resemble faces. This expertise effect may also be caused by a biased attentional modulation: with a blocked fMRI design, experts may attend more to a block of expertise than a block of non-expertise stimuli. In this study, using both side-view car images that do not resemble faces and bird images in an event-related fMRI design that minimizes attentional modulation, an expertise effect in the right FFA is observed in both car and bird experts (although a baseline bias makes the bird expertise effect less reliable). These results are consistent with those of Gauthier et al., and suggest the involvement of the right FFA in processing non-face expertise visual stimuli.