Voices, in addition to faces, enable person identification. Voice recognition has been shown to evoke a distributed network of brain regions that includes, in addition to the superior temporal sulcus (STS), the anterior temporal pole, fusiform face area (FFA), and posterior cingulate gyrus (pCG). Here we report an individual (MS) with acquired prosopagnosia who, despite bilateral damage to much of this network, demonstrates the ability to distinguish voices of several well-known acquaintances from voices of people that he has never heard before. Functional magnetic resonance imaging (fMRI) revealed that, relative to speech-modulated noise, voices rated as familiar and unfamiliar by MS elicited enhanced haemodynamic activity in the left angular gyrus, left posterior STS, and posterior midline brain regions, including the retrosplenial cortex and the dorsal pCG. More interestingly, relative to noise and unfamiliar voices, the familiar voices elicited greater haemodynamic activity in the left angular gyrus and medial parietal regions including the dorsal pCG and precuneus. The findings are consistent with theories implicating the pCG in recognizing people who are personally familiar, and furthermore suggest that the pCG region of the voice identification network is able to make functional contributions to voice recognition even though other areas of the network, namely the anterior temporal poles, FFA, and the right parietal lobe, may be compromised.

中文翻译：

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语音识别和后扣带回：面部失认症的 fMRI 研究。

除了人脸，声音还可以识别人。语音识别已被证明可以唤起大脑区域的分布式网络，除了颞上沟 (STS)、前颞极、梭形面部区域 (FFA) 和后扣带回 (pCG)。在这里，我们报告了一名患有获得性面容失认症的个人 (MS)，尽管该网络的大部分受到双侧损伤，但仍表现出区分几个知名熟人的声音和他以前从未听过的人的声音的能力。功能磁共振成像 (fMRI) 显示，相对于语音调制噪声，被 MS 评为熟悉和不熟悉的声音引起左角回、左后 STS 和后中线脑区的血流动力学活动增强，包括脾后皮层和背侧 pCG。更有趣的是，相对于噪音和不熟悉的声音，熟悉的声音在左角回和内侧顶叶区域（包括背侧 pCG 和楔前叶）引起更大的血流动力学活动。这些发现与暗示 pCG 识别个人熟悉的人的理论一致，并且进一步表明语音识别网络的 pCG 区域能够对语音识别做出功能贡献，即使网络的其他区域，即前颞叶两极、FFA 和右顶叶可能会受到影响。熟悉的声音在左角回和内侧顶叶区域（包括背侧 pCG 和楔前叶）引起更大的血流动力学活动。这些发现与暗示 pCG 识别个人熟悉的人的理论一致，并且进一步表明语音识别网络的 pCG 区域能够对语音识别做出功能贡献，即使网络的其他区域，即前颞叶两极、FFA 和右顶叶可能会受到影响。熟悉的声音在左角回和内侧顶叶区域（包括背侧 pCG 和楔前叶）引起更大的血流动力学活动。这些发现与暗示 pCG 识别个人熟悉的人的理论一致，并且进一步表明语音识别网络的 pCG 区域能够对语音识别做出功能贡献，即使网络的其他区域，即前颞叶两极、FFA 和右顶叶可能会受到影响。