Specialization of the specialized in features of external human brain morphology
Specialization of the specialized in features of external human brain morphology
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DOI：
10.1111/j.1460-9568.2006.05031.x
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发表时间：
2006-09-01
影响因子：
3.4
通讯作者：
Schlaug, Gottfried
中科院分区：
文献类型：
--
作者：
Bangert, Marc;Schlaug, Gottfried
最近的研究表明，专业音乐家和非音乐家之间在特定大脑区域的大小、不对称性或灰质密度方面存在大脑差异。在这里，我们演示：（1）运动皮层的解剖学差异已经可以通过粗略的视觉观察来发现;（2）在音乐家中，甚至可以在大体解剖学尺度上区分具有不同手动优势的乐器。多个评分员，盲目的主题身份和半球，调查内的音乐家的差异，欧米茄标志（OS），一个解剖标志的中央前回与手部运动的代表。64个大脑样本由16名专业弦乐演奏家、16名专业钢琴家和32名非音乐家组成的匹配组组成。评级通过kappa统计进行分析。观察者内和观察者间的可靠性都很高。音乐家比非音乐家有更明显的OS表达，键盘手表现出左脑优势，弦乐手表现出右脑优势。这表明大脑对乐器的不同适应。
Recent studies have shown brain differences between professional musicians and non-musicians with respect to size, asymmetry or gray matter density of specific cerebral regions. Here we demonstrate: (1) that anatomical differences in the motor cortex can already be detected by coarse visual inspection; and (2) that within musicians, even a discrimination of instruments with different manual dominance is possible on a gross anatomical scale. Multiple raters, blinded for subject identity and hemisphere, investigated within-musician differences in the Omega Sign (OS), an anatomical landmark of the precentral gyrus associated with hand movement representation. The sample of 64 brains comprised matched groups of 16 expert string-players, 16 expert pianists and 32 non-musicians. Ratings were analysed by means of kappa statistics. Intra- and interobserver reliabilities were high. Musicians had a more pronounced OS expression than non-musicians, with keyboard-players showing a left and string-players a right hemisphere advantage. This suggests a differential brain adaptation depending on instrument played.