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“幻听”的神经解剖学:一种与精神分裂症幻听相关的额颞叶脑结构异常。

Neuroanatomy of "hearing voices": a frontotemporal brain structural abnormality associated with auditory hallucinations in schizophrenia.

作者信息

Gaser Christian, Nenadic Igor, Volz Hans-Peter, Büchel Christian, Sauer Heinrich

机构信息

Department of Psychiatry, Friedrich-Schiller University of Jena, Philosophenweg 3, D-07743 Jena, Germany.

出版信息

Cereb Cortex. 2004 Jan;14(1):91-6. doi: 10.1093/cercor/bhg107.

Abstract

Auditory hallucinations are a frequent symptom in schizophrenia. While functional imaging studies have suggested the association of certain patterns of brain activity with sub-syndromes or single symptoms (e.g. positive symptoms such as hallucinations), there has been only limited evidence from structural imaging or post-mortem studies. In this study, we investigated the relation of local brain structural deficits to severity of auditory hallucinations, particularly in perisylvian areas previously reported to be involved in auditory hallucinations. In order to overcome certain limitations of conventional volumetric methods, we used deformation-based morphometry (DBM), a novel automated whole-brain morphometric technique, to assess local gray and white matter deficits in structural magnetic resonance images of 85 schizophrenia patients. We found severity of auditory hallucinations to be significantly correlated (P < 0.001) with volume loss in the left transverse temporal gyrus of Heschl (primary auditory cortex) and left (inferior) supramarginal gyrus, as well as middle/inferior right prefrontal gyri. This demonstrates a pattern of distributed structural abnormalities specific for auditory hallucinations and suggests hallucination-specific alterations in areas of a frontotemporal network for processing auditory information and language.

摘要

幻听是精神分裂症的常见症状。虽然功能成像研究表明某些脑活动模式与亚综合征或单一症状(如幻觉等阳性症状)有关,但来自结构成像或尸检研究的证据有限。在本研究中,我们调查了局部脑结构缺陷与幻听严重程度之间的关系,特别是在先前报道与幻听有关的颞周区域。为了克服传统体积测量方法的某些局限性,我们使用了基于变形的形态测量法(DBM),这是一种新型的全脑自动形态测量技术,来评估85例精神分裂症患者结构磁共振图像中的局部灰质和白质缺陷。我们发现,幻听严重程度与左侧颞横回(初级听觉皮层)、左侧(下)缘上回以及右侧额中/下回的体积减少显著相关(P < 0.001)。这表明了一种特定于幻听的分布式结构异常模式,并提示在处理听觉信息和语言的额颞网络区域存在特定于幻觉的改变。

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