由歧视训练引发的双耳暗示重量调整
Maike Klingel1,2, Udbhav Singhal2,3, Aaron R Seitz3
1Acoustics Research Institute, Austrian Academy of Sciences, Vienna, Austria.
Attention, perception & psychophysics
|May 14, 2025
概括
这项研究开发了一种新的仅听力训练方法,以调整听众如何权衡声音定位线索. 培训成功地重新加权了参与者的间隔时间差异 (ITD) 和间隔水平差异 (ILD).
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.
- 人类的感知 人类的感知
背景情况:
- 声音本地化依赖于双耳线索:音声间时间差 (ITD) 和音声间水平差 (ILD).
- 线索权重取决于频率,但可以根据环境因素或培训进行调整.
- 改善不同人群的空间听力可能受益于操纵暗示权重.
研究的目的:
- 引入和评估一种新的,仅用于听觉的培训程序,用于修改ITD和ILD线索的相对权重.
- 为了确定这种训练方法是否可以有效地诱导提示权重的变化.
- 评估拟议的培训方法的可访问性和个性化性.
主要方法:
- 一个实验涉及预测,三个培训课程和后测试,参与者分为ITD增强,ILD增强和对照组.
- 训练中使用了一种适应性阶梯,仅用听觉歧视试验,带有窄频段噪声爆发 (2-4 kHz).
- 参与者执行了局部化任务,收到反来想象训练的提示方向的声音运动.
主要成果:
- 无论是ITD还是ILD培训组,都显示了强化线索的重量显著增加.
- 这种提示重权效应在整个培训课程中持续存在.
- 在对照组中没有观察到暗示权重的显著变化.
结论:
- 开发的仅听力训练方法对于重新权衡ITD和ILD线索是有效的.
- 培训是个性化和可访问的,因为它依赖于简单的听觉任务和最小的设备.
- 这种方法有可能在各种听众群体中增强空间听力.
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