Talker discontinuity disrupts attention to speech: Evidence from EEG and pupillometry.
Talker discontinuity disrupts attention to speech: Evidence from EEG and pupillometry.
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DOI：
10.1016/j.bandl.2021.104996
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发表时间：
2021-10
影响因子：
2.5
通讯作者：
Perrachione TK
中科院分区：
文献类型：
--
作者：
Lim SJ;Carter YD;Njoroge JM;Shinn-Cunningham BG;Perrachione TK
语音处理效率较低，从不连续的，混合的谈话者比一个一致的谈话者，但鲜为人知的是处理谈话者的变化的神经机制。在这里，我们测量了心理生理反应的谈话者变异使用脑电图（EEG）和瞳孔测量，而听众进行延迟回忆的数字广度任务。听众听到并回忆起七位数序列与说话者（单与混合说话者数字）和时间（0与500毫秒的数字间间隔）的不连续性。说话者的不连续性降低了连续回忆的准确性。谈话者和时间的不连续性引起P3a样神经诱发反应，而快速处理混合谈话者的讲话导致增加相位瞳孔放大。此外，在工作记忆维持过程中，混合说话者的语音产生较少的阿尔法振荡功率，但在语音编码过程中则不然。总的来说，这些结果是一致的听觉注意和流框架中，谈话者的不连续性导致非自愿的，刺激驱动的注意力重新定位到新的语音源，导致处理干扰经典与谈话者的变化。
Speech is processed less efficiently from discontinuous, mixed talkers than one consistent talker, but little is known about the neural mechanisms for processing talker variability. Here, we measured psychophysiological responses to talker variability using electroencephalography (EEG) and pupillometry while listeners performed a delayed recall of digit span task. Listeners heard and recalled seven-digit sequences with both talker (single- vs. mixed-talker digits) and temporal (0- vs. 500-ms inter-digit intervals) discontinuities. Talker discontinuity reduced serial recall accuracy. Both talker and temporal discontinuities elicited P3a-like neural evoked response, while rapid processing of mixed-talkers’ speech led to increased phasic pupil dilation. Furthermore, mixed-talkers’ speech produced less alpha oscillatory power during working memory maintenance, but not during speech encoding. Overall, these results are consistent with an auditory attention and streaming framework in which talker discontinuity leads to involuntary, stimulus-driven attentional reorientation to novel speech sources, resulting in the processing interference classically associated with talker variability.
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影响因子：
2.8
作者：
Choi, Inyong;Wang, Le;Bharadwaj, Hari;Shinn-Cunningham, Barbara
通讯作者：
Shinn-Cunningham, Barbara
DOI：
10.3758/s13414-017-1395-5
发表时间：
2018-04
期刊：
Attention, perception & psychophysics
影响因子：
--
作者：
Choi JY;Hu ER;Perrachione TK
通讯作者：
Perrachione TK
影响因子：
2.7
作者：
Best V;Swaminathan J;Kopčo N;Roverud E;Shinn-Cunningham B
通讯作者：
Shinn-Cunningham B
影响因子：
3.4
作者：
Choi, Ja Young;Perrachione, Tyler K.
通讯作者：
Perrachione, Tyler K.
DOI：
10.1073/pnas.0803718105
发表时间：
2008-09-02
影响因子：
11.1
作者：
Best, Virginia;Ozmeral, Erol J.;Shinn-Cunningham, Barbara G.
通讯作者：
Shinn-Cunningham, Barbara G.