Measuring the response to visually presented faces in the human lateral prefrontal cortex.
Measuring the response to visually presented faces in the human lateral prefrontal cortex.
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DOI：
10.1093/texcom/tgac036
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发表时间：
2022
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神经影像学研究确定了人类大脑中的多个面孔选择区域。在本研究中，我们比较了外侧前额叶皮层中面孔区域与其他面孔选择区域的功能反应。在实验1中，参与者（n = 32）被扫描观看视频包含面部，身体，场景，对象，和混乱的对象。我们在右额下回（rIFG）发现了一个面孔选择区。在实验2中，参与者（n = 24）观看相同的视频或静态图像。结果表明，rIFG，右后上级颞沟（rpSTS），右枕面部区域（rOFA）表现出更大的反应，以移动比静态面孔。在实验3中，参与者（n = 18）在对侧和同侧视野中观看人脸视频。结果表明，rIFG和rpSTS没有显示视野偏向，而rOFA和右侧梭状面区（rFFA）显示对侧偏向。这些实验表明了两个结论：首先，在所有三个实验中，IFG中的面部区域并不像枕颞叶皮层中的面部区域那样可靠。其次，IFG和pSTS的反应特征的相似性表明，这些区域可能执行类似的认知功能，这一结论与先前的神经解剖学和功能连接证据一致。
Neuroimaging studies identify multiple face-selective areas in the human brain. In the current study, we compared the functional response of the face area in the lateral prefrontal cortex to that of other face-selective areas. In Experiment 1, participants (n = 32) were scanned viewing videos containing faces, bodies, scenes, objects, and scrambled objects. We identified a face-selective area in the right inferior frontal gyrus (rIFG). In Experiment 2, participants (n = 24) viewed the same videos or static images. Results showed that the rIFG, right posterior superior temporal sulcus (rpSTS), and right occipital face area (rOFA) exhibited a greater response to moving than static faces. In Experiment 3, participants (n = 18) viewed face videos in the contralateral and ipsilateral visual fields. Results showed that the rIFG and rpSTS showed no visual field bias, while the rOFA and right fusiform face area (rFFA) showed a contralateral bias. These experiments suggest two conclusions; firstly, in all three experiments, the face area in the IFG was not as reliably identified as face areas in the occipitotemporal cortex. Secondly, the similarity of the response profiles in the IFG and pSTS suggests the areas may perform similar cognitive functions, a conclusion consistent with prior neuroanatomical and functional connectivity evidence.