Neural representations of faces in the monkey limbic cortices

个人熟悉度被定义为对与主体具有某种强烈个人关系的特定个体的熟悉度。 一个典型的个人熟悉的例子是，对母亲或父亲的主题自己。许多先前的研究已经表明，个人熟悉度在人脸识别中至关重要。然而，神经基础的个人熟悉性的处理并不为人所知。在这项研究中，探讨神经元的基础上处理的个人熟悉性，单神经元活动记录从嗅周，后扣带回和后压皮质的猴子在被动观看各种面孔，这是不同的个人熟悉性。结果表明，这些边缘皮层的神经活动对个人熟悉性具有一定的选择性，暗示了它们在个人熟悉性加工中的重要作用。

Personal familiarity is defined as the familiarity to a specific individual with whom the subject has some strong personal relationship. A typical example of the personal familiarity is that to mother or father of the subject's own. It has been shown in many previous studies that personal familiarity was critically important in face recognition. However, neural basis for the processing of personal familiarity is not well known. In this study, to investigate neuronal basis of the processing of personal familiarity, single neuronal activity was recorded from the perirhinal, posterior cingulate and retrosplenial cortices of monkeys during a passive viewing of various faces which were different in terms of personal familiarity. As the result, neural activities which showed some selectivity to personal familiarity were recorded from these limbic cortices, implying crucial roles of them in the processing of personal familiarity.