V2EX tonotopy

Tonotopy

释义 Definition

音调拓扑(音调映射):指在听觉系统中,不同频率(高音/低音)的声音在空间上以有序方式对应到不同神经位置的现象。最典型的例子是耳蜗基底膜以及从听神经到听觉皮层的频率排列。

发音 Pronunciation (IPA)

/tntpi/

例句 Examples

The cochlea shows tonotopy, with high frequencies detected at the base and low frequencies at the apex.
耳蜗具有音调拓扑:高频在基底部被检测到,低频在顶端被检测到。

Researchers used fMRI to map tonotopy in the auditory cortex, revealing a systematic layout of frequency preferences across cortical regions.
研究人员使用功能性磁共振成像绘制听觉皮层的音调拓扑图,显示不同皮层区域对频率偏好的系统性空间分布。

词源 Etymology

tonotopy 由 **tono-**(源自希腊语 tonos,意为“音调/张力”)与 -topy(源自希腊语 topos,意为“地点/位置”)构成,字面含义接近“音调在空间中的位置排列”。该词常用于神经科学与听觉生理学语境。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Principles of Neural Science(Eric R. Kandel 等):在听觉通路与皮层组织部分讨论频率有序映射与tonotopy
  • The Auditory Cortex(编者:Jeffrey A. Winer, Christoph E. Schreiner):多章涉及听觉皮层的tonotopy与功能分区。
  • Georg von Békésy 的经典研究(如关于耳蜗行波与基底膜机械特性的著作与论文):为理解耳蜗tonotopy提供重要基础。
  • The Oxford Handbook of Auditory Science: The Auditory Brain:介绍从外周到中枢的频率组织与tonotopy证据。
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