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首页> 外文期刊>Experimental Brain Research >Certain, but incorrect: on the relation between subjective certainty and accuracy in sound localisation
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Certain, but incorrect: on the relation between subjective certainty and accuracy in sound localisation

机译：某些，但不正确：在声音定位主观确定性与准确性之间的关系

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摘要

When asked to identify the position of a sound, listeners can report its perceived location as well as their subjective certainty about this spatial judgement. Yet, research to date focused primarily on measures of perceived location (e.g., accuracy and precision of pointing responses), neglecting instead the phenomenological experience of subjective spatial certainty. The present study aimed to investigate: (1) changes in subjective certainty about sound position induced by listening with one ear plugged (simulated monaural listening), compared to typical binaural listening and (2) the relation between subjective certainty about sound position and localisation accuracy. In two experiments (N = 20 each), participants localised single sounds delivered from one of 60 speakers hidden from view in front space. In each trial, they also provided a subjective rating of their spatial certainty about sound position. No feedback on response was provided. Overall, participants were mostly accurate and certain about sound position in binaural listening, whereas their accuracy and subjective certainty decreased in monaural listening. Interestingly, accuracy and certainty dissociated within single trials during monaural listening: in some trials participants were certain but incorrect, in others they were uncertain but correct. Furthermore, unlike accuracy, subjective certainty rapidly increased as a function of time during the monaural listening block. Finally, subjective certainty changed as a function of perceived location of the sound source. These novel findings reveal that listeners quickly update their subjective confidence on sound position, when they experience an altered listening condition, even in the absence of feedback. Furthermore, they document a dissociation between accuracy and subjective certainty when mapping auditory input to space.
机译：当被要求确定声音的位置时，听众可以报告其感知的位置以及他们对这种空间判断的主观确定性。然而，迄今为止的研究主要集中在感知地点的措施（例如，指向反应的准确性和精确度），忽略了主观空间确定性的现象学经验。目前的研究旨在调查：（1）通过封堵（模拟单声道聆听）的听力诱导对声音位置的主观确定性的变化，与典型的双耳听力和（2）主观确定性与定位准确性之间的主观关系之间的关系。在两个实验中（每次n = 20），参与者从60个扬声器中的一个局部提供的单一声音，隐藏在前面空间中的视图中。在每次试验中，他们还提供了对声音位置的空间确定性的主观评价。没有提供有关响应的反馈。总体而言，参与者大多数准确，在双耳听力中的声音位置大多是准确的，并且他们的准确性和主观肯定在单声道听力下降。有趣的是，在单声道听力期间单项试验中解开的准确性和确定性：在一些试验中，参与者肯定但不正确，在其他人中他们是不确定的但是正确的。此外，与准确性不同，主观确定性随着单声道听力块期间的时间而迅速增加。最后，主观确定性随着声源的感知位置而变化。这些新的调查结果表明，当在没有反馈的情况下，当他们经历改变的聆听条件时，听众迅速更新他们对声道位置的主观信心。此外，当映射到空间的听觉输入时，他们记录了准确性和主观确定性之间的解散。

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