Effects of speech-rhythm disruption on selective listening with a single background talker.
Effects of speech-rhythm disruption on selective listening with a single background talker.
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DOI：
10.3758/s13414-021-02298-x
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发表时间：
2021-07
期刊：
影响因子：
--
通讯作者：
Kidd GR
中科院分区：
文献类型：
--
作者：
McAuley JD;Shen Y;Smith T;Kidd GR
最近通过在多说话者背景下使用坐标响应测量（CRM）范式的研究表明，在背景语音中改变目标语音的自然节奏会恶化目标识别（目标节奏效应），而改变背景语音节奏会提高目标识别（背景节奏效应）。在这里，我们使用单说话者背景来检查目标和背景声音模式的特定属性对选择性聆听的作用，而无需考虑多个背景刺激的复杂性。实验 1 操纵背景说话者的性别，并与男性目标说话者一起呈现，以评估目标和背景节奏效果，有或没有强烈的音调提示，以帮助感知分离。实验 2 使用声码化的单说话者背景来检查目标和背景节奏效果，并保留基于包络的语音节奏，但没有语义内容或时间精细结构。虽然所有背景都存在目标节律效应，但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设提供了额外的支持，同时还表明背景节奏效应并非仅由基于包络的语音节奏驱动，并且当音调或其他声学差异为选择性聆听提供强有力的基础时，背景节奏效应可能会减少或消除。
Recent work by using the Coordinate Response Measure (CRM) paradigm with a multi-talker 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.
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影响因子：
25
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通讯作者：
Ghitza O
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Simpson, BD
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