Early (M170) activation of face-specific cortex by face-like objects.
Early (M170) activation of face-specific cortex by face-like objects.
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DOI：
10.1097/wnr.0b013e328325a8e1
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发表时间：
2009-03-04
期刊：
影响因子：
1.7
通讯作者：
Ahlfors SP
中科院分区：
文献类型：
--
作者：
Hadjikhani N;Kveraga K;Naik P;Ahlfors SP
以表现出面部结构特征的随机图案感知面部的倾向就是妄想症的一个例子。对“真实”面孔的感知与刺激开始后约170毫秒时产生的大脑皮层反应信号有关；但当非面部物体被感知为面孔时会发生什么？使用脑磁图(MEG)，我们发现偶然被认为是面孔的物体在腹侧梭形皮质诱发了早期(165ms)的激活，时间和位置与面孔引起的相似，而普通物体不能引起这种激活。早些时候的峰值为130毫秒，也只对真实面孔的图像进行了观察。我们的发现表明，类人脸物体引起的面孔知觉是一个相对较早的过程，而不是一种较晚的重新解释认知现象。
The tendency to perceive faces in random patterns exhibiting configural properties of faces is an example of pareidolia. Perception of ‘real’ faces has been associated with a cortical response signal arising at about 170ms after stimulus onset; but what happens when non-face objects are perceived as faces? Using magnetoencephalography (MEG), we found that objects incidentally perceived as faces evoked an early (165ms) activation in the ventral fusiform cortex, at a time and location similar to that evoked by faces, whereas common objects did not evoke such activation. An earlier peak at 130 ms was also seen for images of real faces only. Our findings suggest that face perception evoked by face-like objects is a relatively early process, and not a late re-interpretation cognitive phenomenon.