证据表明,在人类大脑皮层有一个声音运动区域
T D Griffiths1, A Rees, C Witton
1Department of Physiological Sciences, Newcastle University Medical School, Newcastle upon Tyne, UK. t.d.griffiths@ncl.ac.uk
Nature
|October 3, 1996
概括
人类的声音定位依赖于音声间的差异. 一个特定的大脑区域,与经典的听觉区域不同,似乎专门用于检测声音运动,类似于视觉运动失明.
科学领域:
- 神经科学是一个神经科学.
- 听觉感知是一种听觉感知.
- 精神声学是一种精神声学.
背景情况:
- 人类声音本地化使用interaural时间和水平差异.
- 听觉皮层对声音源的运动做出反应,但潜在的机制尚不清楚.
研究的目的:
- 研究基于耳间线索检测声音运动的神经机制.
- 要确定声音运动检测是否依赖于一个专门的皮质区域.
主要方法:
- 比较声间相/振幅变化的检测与单声变化的检测.
- 评估右半球中风患者对声音运动知觉的评估.
主要成果:
- 检测声间暗示变化使用与单声暗示变化不同的机制.
- 患有中风的患者无法检测到声音的运动,无论是相位或声音的声音.
结论:
- 在主要听觉区域之外,一个独特的皮质区域专门用于声音运动检测.
- 这种听觉运动处理区域可能与视觉运动处理区域相似,表明功能局部化.
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