持续听觉注意力的突出依赖性干扰可以从唤起的学生反应和对任务无关的声音的神经跟踪中推断出来
Lorenz Fiedler1, Ingrid Johnsrude2,3, Dorothea Wendt2,4
1Eriksholm Research Centre, Part of Oticon A/S, Snekkersten 3070, Denmark lfie@eriksholm.com.
概括
神经生理学反应,如瞳孔反应和神经跟踪,可以表明在听力任务中从不相关的声音中分心. 这些分散注意力的措施与个人的听力值和语音理解能力相关.
科学领域:
- 认知神经科学 认知神经科学
- 听觉感知是一种听觉感知.
- 听力科学 听力科学
背景情况:
- 刺激驱动的注意力能够对外部刺激做出反应,但可以被不相关的声音干扰,影响诸如语音理解等任务.
- 突出度量化了声音捕捉注意力的程度,可用计算模型进行估计.
- 个人的听力值可以影响个体如何有效地管理听力分心.
研究的目的:
- 调查神经生理学对与任务无关的声音的反应是否反映了持续倾听期间的分心水平.
- 确定这些神经生理反应,声音突出性和个体听力值之间的关系.
- 探索使用这些措施来评估听力护理中的注意力动态的潜力.
主要方法:
- 47名有不同听力值的成年人听到连续的语音,其中具有计算突出性的与任务无关的声音.
- 眼睛跟踪测量了瞳孔反应 (PR),脑电图测量了神经跟踪 (干扰器跟踪,DT,和目标跟踪的下降,DTT).
- 统计建模分析了PR,DT,DTT,声音突出性和语音理解之间的关系.
主要成果:
- 与任务无关的声音始终引起学生反应 (PR),分心追踪 (DT) 和目标追踪 (ΔTT) 的下降.
- 更高的计算声音突出度增强了PR,DT和DTT.
- 较大的学生响应 (PR) 与目标追踪 (ΔTT) 的较大下降和较差的语音理解有关.
结论:
- 神经生理学反应,包括瞳孔反应和神经跟踪,可以有效地推断从与任务无关的听觉刺激中分心.
- 这些发现表明,在持续倾听场景中,对持续倾听场景中的注意力动态进行神经生理学评估的可能性.
- 这些结果对开发听力护理新诊断工具有意义,考虑到听力值的个体差异.
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