信息掩蔽中相似性效应的评估。

Evaluation of similarity effects in informational masking.

机构信息

Department of Psychology, University of Pennsylvania, 3401 Walnut Street, Suite 302C, Philadelphia, Pennsylvania 19104, USA.

出版信息

J Acoust Soc Am. 2011 Jun;129(6):EL280-5. doi: 10.1121/1.3590168.

DOI:10.1121/1.3590168

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3117891/

Abstract

The degree of similarity between signal and masker in informational masking paradigms has been hypothesized to contribute to informational masking. The present study attempted to quantify "similarity" using a discrimination task. Listeners discriminated various signal stimuli from a multitone complex and then detected the presence of those signals embedded in a multitone informational masker. Discriminability negatively correlated with detection threshold in an informational masking experiment, indicating that similarity between signal and the masker quality contributed to informational masking. These results suggest a method for specifying relevant signal attributes in informational masking paradigms involving similarity manipulations.

摘要

信息掩蔽范式中信号和掩蔽之间的相似程度被假设为对信息掩蔽有贡献。本研究试图使用辨别任务来量化“相似性”。听众从多音复音中辨别出各种信号刺激，然后检测那些嵌入在多音信息掩蔽器中的信号的存在。在信息掩蔽实验中，辨别力与检测阈值呈负相关，这表明信号和掩蔽器质量之间的相似性有助于信息掩蔽。这些结果为信息掩蔽范式中涉及相似性操作的指定相关信号属性提供了一种方法。

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本文引用的文献

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Informational masking: counteracting the effects of stimulus uncertainty by decreasing target-masker similarity.信息掩蔽：通过降低目标与掩蔽物的相似性来抵消刺激不确定性的影响。

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J Acoust Soc Am. 2003 Jun;113(6):2984-7. doi: 10.1121/1.1570435.

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Similarity, uncertainty, and masking in the identification of nonspeech auditory patterns.非语音听觉模式识别中的相似性、不确定性和掩蔽

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