Energetic and informational masking place dissociable demands on listening effort: Evidence from simultaneous electroencephalography and pupillometrya).
Energetic and informational masking place dissociable demands on listening effort: Evidence from simultaneous electroencephalography and pupillometrya).
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DOI：
10.1121/10.0020539
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发表时间：
2023-08-01
影响因子：
2.4
通讯作者：
Kidd, Gerald
中科院分区：
文献类型：
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作者：
Villard, Sarah;Perrachione, Tyler K;Lim, Sung-Joo;Alam, Ayesha;Kidd, Gerald
处理被并发语音/噪声掩盖的语音的任务对听者来说是一个巨大的挑战。然而，在这些任务上的表现可能并不能直接反映他们所付出的倾听努力。瞳孔大小和α范围内（8-12 Hz）神经振荡功率的变化是反映听力努力的重要神经生理信号；然而，通过这两种方法获得的测量结果很少相关，这表明它们可能会根据特定任务引起的特定认知需求（以及延伸到特定类型的努力）做出不同的反应。本研究旨在比较不同类型的听觉掩蔽物（高混淆可理解语音掩蔽物、语音包络调制语音形噪声掩蔽物和非调制语音形噪声掩蔽物）在年轻的正常听力听者中引起的瞳孔大小和α功率的变化。在每个条件下，目标与掩蔽物的比率被设定在参与者在心理测量函数上个人估计的75%的正确率点上。语音掩蔽条件下瞳孔大小的增加明显大于噪声掩蔽条件下瞳孔大小的增加，而非调制噪声掩蔽条件下瞳孔α振荡功率的增加明显大于语音掩蔽条件下瞳孔α振荡功率的增加，这表明解决这两个任务所需的努力可能有不同的神经来源。
The task of processing speech masked by concurrent speech/noise can pose a substantial challenge to listeners. However, performance on such tasks may not directly reflect the amount of listening effort they elicit. Changes in pupil size and neural oscillatory power in the alpha range (8–12 Hz) are prominent neurophysiological signals known to reflect listening effort; however, measurements obtained through these two approaches are rarely correlated, suggesting that they may respond differently depending on the specific cognitive demands (and, by extension, the specific type of effort) elicited by specific tasks. This study aimed to compare changes in pupil size and alpha power elicited by different types of auditory maskers (highly confusable intelligible speech maskers, speech-envelope-modulated speech-shaped noise, and unmodulated speech-shaped noise maskers) in young, normal-hearing listeners. Within each condition, the target-to-masker ratio was set at the participant's individually estimated 75% correct point on the psychometric function. The speech masking condition elicited a significantly greater increase in pupil size than either of the noise masking conditions, whereas the unmodulated noise masking condition elicited a significantly greater increase in alpha oscillatory power than the speech masking condition, suggesting that the effort needed to solve these respective tasks may have different neural origins.
影响因子：
3.3
作者：
通讯作者：
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