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Effects of speech-rhythm disruption on selective listening with a single background talker
Attention, Perception, & Psychophysics ( IF 1.7 ) Pub Date : 2021-03-29 , DOI: 10.3758/s13414-021-02298-x
J. Devin McAuley , Yi Shen , Toni Smith , Gary R. Kidd

Recent work by McAuley et al. (Attention, Perception, & Psychophysics, 82, 3222–3233, 2020) using the Coordinate Response Measure (CRM) paradigm with a multitalker background revealed that altering the natural rhythm of target speech amidst background speech worsens target recognition (a target-rhythm effect), while altering background speech rhythm improves target recognition (a background-rhythm effect). Here, we used a single-talker background to examine the role of specific properties of target and background sound patterns on selective listening without the complexity of multiple background stimuli. Experiment 1 manipulated the sex of the background talker, presented with a male target talker, to assess target and background-rhythm effects with and without a strong pitch cue to aid perceptual segregation. Experiment 2 used a vocoded single-talker background to examine target and background-rhythm effects with envelope-based speech rhythms preserved, but without semantic content or temporal fine structure. While a target-rhythm effect was present with all backgrounds, the background-rhythm effect was only observed for the same-sex background condition. Results provide additional support for a selective entrainment hypothesis, while also showing that the background-rhythm effect is not driven by envelope-based speech rhythm alone, and may be reduced or eliminated when pitch or other acoustic differences provide a strong basis for selective listening.



中文翻译:

语音节奏中断对单个背景说话者选择性聆听的影响

McAuley等人的最新工作。(注意,知觉和心理物理学,82,(2222-3233,2020)使用具有多说话者背景的坐标响应测度(CRM)范例显示,在背景语音中改变目标语音的自然节奏会恶化目标识别(目标节奏效果),而改变背景语音节奏会提高目标识别能力(背景节奏效果)。在这里,我们使用单一讲话者背景来研究目标和背景声音模式的特定属性在选择性聆听中的作用,而没有多重背景刺激的复杂性。实验1操纵了背景谈话者的性别(与男性目标谈话者一起出现),以评估目标和背景节奏的影响,无论是否有强烈的提示来帮助感知隔离。实验2使用语音编码的单个讲话者背景检查目标和背景节奏效果,并保留了基于信封的语音节奏,但没有语义内容或时间精细结构。尽管在所有背景下均存在目标节奏效应,但仅在同性背景条件下才能观察到背景节奏效应。结果为选择性夹带假说提供了额外的支持,同时还表明背景节奏效果并非仅由基于包络的语音节奏驱动,当音高或其他声学差异为选择性聆听提供强大的基础时,背景节奏效果可能会降低或消除。仅在同性背景条件下观察到背景节律效应。结果为选择性夹带假说提供了额外的支持,同时还表明背景节奏效果并非仅由基于包络的语音节奏驱动,当音高或其他声学差异为选择性聆听提供强大的基础时,背景节奏效果可能会降低或消除。仅在同性背景条件下观察到背景节律效应。结果为选择性夹带假说提供了额外的支持,同时还表明背景节奏效果并非仅由基于包络的语音节奏驱动,当音高或其他声学差异为选择性聆听提供强大的基础时,背景节奏效果可能会降低或消除。

更新日期:2021-03-30
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