Tong F, Nakayama K, Vaughan J T, Kanwisher N
Department of Psychology, Harvard University, Cambridge, Massachusetts 02138, USA.
Neuron. 1998 Oct;21(4):753-9. doi: 10.1016/s0896-6273(00)80592-9.
We used functional magnetic resonance imaging (fMRI) to monitor stimulus-selective responses of the human fusiform face area (FFA) and parahippocampal place area (PPA) during binocular rivalry in which a face and a house stimulus were presented to different eyes. Though retinal stimulation remained constant, subjects perceived changes from house to face that were accompanied by increasing FFA and decreasing PPA activity; perceived changes from face to house led to the opposite pattern of responses. These responses during rivalry were equal in magnitude to those evoked by nonrivalrous stimulus alternation, suggesting that activity in the FFA and PPA reflects the perceived rather than the retinal stimulus, and that neural competition during binocular rivalry has been resolved by these stages of visual processing.
我们使用功能磁共振成像（fMRI）来监测人类梭状回面孔区（FFA）和海马旁回位置区（PPA）在双眼竞争期间的刺激选择性反应。在双眼竞争中，面孔和房屋刺激分别呈现给不同的眼睛。尽管视网膜刺激保持恒定，但受试者感知到从房屋到面孔的变化，同时FFA活动增加而PPA活动减少；感知到从面孔到房屋的变化则导致相反的反应模式。竞争期间的这些反应在幅度上与非竞争刺激交替所诱发的反应相等，这表明FFA和PPA中的活动反映的是感知到的刺激而非视网膜刺激，并且双眼竞争期间的神经竞争已在这些视觉处理阶段得到解决。
