瞳孔扩张反映了在接受性语言任务期间的感知优先级
Hannah Mechtenberg1, Cristal Giorio2, Emily B Myers1,3
1Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut, USA.
Ear and hearing
|October 26, 2023
概括
听众使用更多的认知资源来进行随意的语音感知. 然而,对于清晰的言语,瞳孔膨胀更大,这表明动机驱动的是倾听的努力,而不仅仅是模两可.
科学领域:
- 听觉感知是一种听觉感知.
- 认知心理学 认知心理学
- 心理语言学 心理语言学
背景情况:
- 语音感知涉及解决语音模两可,这在清晰和随意的语音注册表之间有所不同.
- 清晰的言语是超标明的,减少了语音的模两可,而随意的言语已经崩了声学空间.
- 用于倾听的认知资源对于理解语音至关重要,特别是在具有挑战性的条件下.
研究的目的:
- 为了研究认知资源,听众在清晰与随意的语音感知过程中进行投资.
- 为了检查背景噪声对不同语音注册表的听力努力的影响.
- 利用瞳孔测量作为在线测量听力努力.
主要方法:
- 48名参与者完成了一个探测器检测任务,同时在安静和噪音下听清晰和随意的语音.
- 在语音感知过程中,连续记录学生的大小.
- 增长曲线分析模拟了瞳孔大小动态,以捕捉随着时间的推移的听力.
主要成果:
- 瞳孔扩张在噪音中更大,证实了听力增加的努力.
- 与假设相反,对于清晰的言语,与随意的言语相比,瞳孔膨胀略大一些.
- 在发言之前观察到瞳孔膨胀的系统差异,表明了预期的努力.
结论:
- 听众的动机,而不仅仅是语音的模两可,影响听力.
- 听众可能会将更多的资源用于清晰的演讲,以最大限度地提高声学/语音的真实性.
- 瞳孔系统是适应性的,响应任务需求和倾听者的动机,以有效地感知.
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