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在现实和虚拟环境中的声音定位中被动诱导的上下文可塑性
Norbert Kopčo1, Stanislava Linková1, Gabriela Andrejková1
1Institute of Computer Science, Faculty of Science, P. J. Šafárik University, Košice 04180, Slovakia.
The Journal of the Acoustical Society of America
|May 13, 2025
概括
对上下文刺激的被动倾听会诱导听觉空间定位后效应 (上下文可塑性). 这种效应在虚拟无声环境中最强,会损害声音定位的准确性.
科学领域:
- 听觉感知是一种听觉感知.
- 精神声学是一种精神声学.
- 空间听觉是一种空间听觉.
背景情况:
- 语境可塑性 (CP) 是一种听觉定位后效应.
- 脑脊髓损伤是由来自固定位置的刺激的重复暴露引起的.
- 以前的研究还没有充分探索被动暴露或虚拟环境.
研究的目的:
- 为了调查被动接触听觉环境是否会诱导CP.
- 在真实反响和虚拟无声/反响环境中比较CP效应.
- 评估CP对声音本地化准确性和信息传输的影响.
主要方法:
- 通过使用短暂的噪音爆发作为目标和适配器刺激进行了两项实验.
- 参与者被动地听取适配器,同时在现实和虚拟环境中定位目标.
- 测量了定位准确性,响应变异性和信息传输速率.
主要成果:
- 被动适配器暴露诱导了显著的局部化后果 (高达16°).
- 在虚拟无声环境中,CP效应最强,最快.
- 真实反响显示较小的效果 (5°),而虚拟环境导致性能恶化.
结论:
- 被动的听觉背景足以诱导上下文可塑性.
- 虚拟环境可能会夸大CP,可能是由于听众策略的改变.
- CP对空间解析能力产生负面影响,特别是在适配器位置附近.
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