快速的双耳处理但缓慢的面具表示重新配置
Bernhard Eurich1, Mathias Dietz1
1Department für Medizinische Physik und Akustik, Universität Oldenburg, 26129 Oldenburg, Germany.
The Journal of the Acoustical Society of America
|September 25, 2023
概括
对于声音定位至关重要的双耳处理在某些测试中看起来很慢. 然而,这项研究揭示了快速的耳间相差编码,协调了快速和缓慢的双耳处理观测.
科学领域:
- 听觉神经科学 听觉神经科学
- 精神声学是一种精神声学.
- 计算审计场景分析 场景分析
背景情况:
- 在复杂的环境中,精确的声音定位依赖于快速的双耳处理.
- 双耳处理在特定的面具条件下表现出快速振荡的快速检测和明显的缓慢.
- 现有的模型很难调和这两种看似矛盾的双耳处理速度观测.
研究的目的:
- 为了研究双耳处理的时间动态.
- 为了调和快速双耳振荡检测和双耳缓慢之间的明显冲突.
- 提出一种能够解释这两种现象的计算模型.
主要方法:
- 对双耳缓慢和快速振荡检测现有心理物理数据的分析.
- 开发一个计算模型,包括声间相差 (IPD) 编码和掩盖IPD统计数据的更新.
- 模拟模型并与实验结果进行比较.
主要成果:
- 来自双耳缓慢性实验的时间整合窗口不能解释快速的双耳振荡检测.
- 一个具有快速IPD编码和较慢的面膜IPD统计数据更新的模型成功地解释了快速和缓慢的双耳处理.
- 该模型建议对双耳听力进行双过程机制.
结论:
- 双耳处理并非均缓慢;它涉及快速编码机制.
- 显而易见的缓慢是由于masker属性的内部表示的更新过程引起的.
- 这个模型为各种双耳处理现象提供了统一的解释.
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