Department of Psychology and the Integrative Neuroscience Research Center, Marquette University, Milwaukee, WI 53201-1881, United States.
Brain Cogn. 2010 Apr;72(3):491-8. doi: 10.1016/j.bandc.2010.01.006. Epub 2010 Feb 18.
Person recognition can be accomplished through several modalities (face, name, voice). Lesion, neurophysiology and neuroimaging studies have been conducted in an attempt to determine the similarities and differences in the neural networks associated with person identity via different modality inputs. The current study used event-related functional-MRI in 17 healthy participants to directly compare activation in response to randomly presented famous and non-famous names and faces (25 stimuli in each of the four categories). Findings indicated distinct areas of activation that differed for faces and names in regions typically associated with pre-semantic perceptual processes. In contrast, overlapping brain regions were activated in areas associated with the retrieval of biographical knowledge and associated social affective features. Specifically, activation for famous faces was primarily right lateralized and famous names were left-lateralized. However, for both stimuli, similar areas of bilateral activity were observed in the early phases of perceptual processing. Activation for fame, irrespective of stimulus modality, activated an extensive left hemisphere network, with bilateral activity observed in the hippocampi, posterior cingulate, and middle temporal gyri. Findings are discussed within the framework of recent proposals concerning the neural network of person identification.
可通过多种方式（面部、姓名、声音）进行人物识别。已有研究通过病变、神经生理学和神经影像学方法，试图确定通过不同方式输入时与人物身份相关的神经网络的异同。本研究采用事件相关功能磁共振成像技术，对 17 名健康参与者进行研究，直接比较对随机呈现的知名和非知名姓名和面孔的反应激活情况（四个类别中的每个类别都有 25 个刺激）。研究结果表明，在与前语义感知过程相关的典型区域中，面孔和姓名的激活存在明显差异。相比之下，与传记知识检索和相关社会情感特征相关的大脑区域存在重叠。具体而言，知名面孔的激活主要是右侧偏侧化，知名姓名的激活则是左侧偏侧化。然而，对于两种刺激，在感知处理的早期阶段，都观察到双侧活动的相似区域。无论刺激方式如何，名人效应都会激活广泛的左半球网络，在海马体、后扣带回和中颞回中观察到双侧活动。研究结果在有关人物识别神经网络的最新建议框架内进行了讨论。
