大脑电刺激诱发的自身面孔幻觉。
Self-face hallucination evoked by electrical stimulation of the human brain.
机构信息
From Service de Neurologie (J.J., L.M., S.F., H.V., J.-P.V.) and Service de Neurochirurgie (S.C.-C.), Centre Hospitalier Universitaire de Nancy; CRAN, UMR 7039 (J.J., L.M., H.V., J.-P.V.), Université de Lorraine and CNRS, Nancy; Faculté de Médecine de Nancy (J.J., L.M., S.C.-C., H.V.), Université de Lorraine, Nancy, France; and Université Catholique de Louvain (J.J., B.R.), Louvain-la-Neuve, Belgique.
出版信息
Neurology. 2014 Jul 22;83(4):336-8. doi: 10.1212/WNL.0000000000000628. Epub 2014 Jun 18.
OBJECTIVES
Self-face hallucination (autoscopic hallucination or AH) has been reported in patients with widespread brain damage or retrospectively after epileptic seizures. The neural basis and the self-processing operations underlying AH remain unknown.
METHODS
We report the results of intracerebral electrical stimulations of the right medial occipitoparietal cortex (right precuneus and occipitoparietal sulcus) in 2 patients with epilepsy who underwent a stereo-EEG.
RESULTS
Immediately after the onset of the stimulation, the 2 patients reported seeing their current own face, facing themselves, in their left visual field.
CONCLUSIONS
Our study shows that the medial occipitoparietal junction has a key role in generating AH. This region has been shown to have a central role in various self-processing operations and especially in self-face recognition. Our observations further reveal that this region is involved in a visual representation of our own face, which is generated during the pathologic phenomenon of AH. This visual representation of our own face may be useful for self-face recognition and social cognition processes involving judgment of self-facial resemblance to others.
目的
广泛脑损伤患者或癫痫发作后会出现自体幻视（自身幻觉或 AH）。AH 所涉及的神经基础和自我加工操作仍不清楚。
方法
我们报告了 2 例接受立体脑电图检查的癫痫患者右侧内侧顶枕颞叶皮质（右侧楔前叶和顶枕沟）颅内电刺激的结果。
结果
刺激开始后，2 名患者立即报告在他们的左视野中看到了他们当前的自己的脸，面向自己。
结论
我们的研究表明，内侧顶枕颞叶交界处在产生 AH 中起关键作用。该区域在各种自我加工操作中，特别是在自我面部识别中具有核心作用。我们的观察结果进一步表明，该区域涉及到我们自己的面部的视觉表现，这是在 AH 的病理现象中产生的。我们自己面部的这种视觉表现可能对自我面部识别和涉及对自我面部与他人相似性的判断的社会认知过程有用。
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