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Auditory and visual speech perception: Confirmation of a modality‐independent source of individual differences in speech recognition

 

作者: Charles S. Watson,   William Weiguang Qiu,   Mary M. Chamberlain,   Xiaofeng Li,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1996)
卷期: Volume 100, issue 2  

页码: 1153-1162

 

ISSN:0001-4966

 

年代: 1996

 

DOI:10.1121/1.416300

 

出版商: Acoustical Society of America

 

关键词: AUDITORY ORGANS;NOISE;SEX DEPENDENCE

 

数据来源: AIP

 

摘要:

Two experiments were run to determine whether individual differences in auditory speech‐recognition abilities are significantly correlated with those for speech reading (lipreading), employing a total sample of 90 normal‐hearing college students. Tests included single words and sentences, recorded on a videodisc by a male speaker [Bernstein and Eberhardt, Johns Hopkins Lipreading Corpus, The Johns Hopkins University, Baltimore, MD, 1986]. The auditory speech was presented with a white noise masker, at −7 dB Sp/N. The correlations between overall auditory and visual performance were 0.52 and 0.43 in the two experiments, consistent with the existence of a modality‐independent ability to perceive linguistic ‘‘wholes’’ on the basis of linguistic fragments. Subjects in the second experiment also identified printed sentences, with 40%–60% portions of the printed characters deleted. Performance on this graphical ‘‘fragmented‐sentences test’’ also correlated significantly with auditory speech recognition, providing a possible clue to the cognitive basis for the look‐versus‐listen correlation. The existence of a modality‐independent source of variance in speech‐recognition abilities may be a partial explanation of the difficulty in demonstrating strong associations between psychoacoustic measures of spectral or temporal acuity, and speech discrimination or identification. Female subjects in both experiments were significantly better lipreaders than their male counterparts.

 

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