Hamilton Roy H, Pascual-Leone Alvaro, Schlaug Gottfried
Department of Neurology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Palmer 1, Boston, MA 02215, USA.
Neuroreport. 2004 Apr 9;15(5):803-6. doi: 10.1097/00001756-200404090-00012.
Absolute pitch (AP) is possessed by only a small percentage of musicians (typically < 20%). From a sample of 46 early blind subjects, we identified 21 who had musical training, 12 of whom (57.1%) reported having AP, reflecting markedly increased prevalence compared to sighted musicians, despite the fact that mean age of commencement of musical training was significantly later among blind than sighted AP musicians in our database. MR images acquired in a subset of blind AP musicians revealed greater variability in planum temporale asymmetry compared with the increased left-sided asymmetry previously described in sighted AP musicians. This suggests that neural mechanisms underlying AP in blind musicians could differ from those in sighted musicians.
绝对音高（AP）仅为一小部分音乐家所拥有（通常<20%）。在46名早期失明受试者的样本中，我们识别出21名接受过音乐训练的人，其中12人（57.1%）报告拥有绝对音高，这表明与有视力的音乐家相比，患病率显著增加，尽管在我们的数据库中，失明的绝对音高音乐家开始接受音乐训练的平均年龄明显晚于有视力的绝对音高音乐家。在一部分失明的绝对音高音乐家中获取的磁共振图像显示，颞平面不对称性的变异性更大，而此前描述的有视力的绝对音高音乐家中左侧不对称性增加。这表明失明音乐家的绝对音高背后的神经机制可能与有视力的音乐家不同。
