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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/12997

Title: Dependence on age of interference with phoneme perception by first- and second-language speech maskers
Authors: Kubo, Rieko
Akagi, Masato
Akahane-Yamada, Reiko
Keywords: Speech perception
Second language
Phonetic processing
Aging effect
Influence of first language
Speech-in-speech masking
Informational masking
Issue Date: 2015-09-01
Publisher: The Acoustical Society of Japan
Magazine name: Acoustical Science and Technology
Volume: 36
Number: 5
Start page: 397
End page: 407
DOI: 10.1250/ast.36.397
Abstract: This study investigated the differences in first-language-based (L1-based) phonetic processing for second language (L2) phonemes among different age groups of adults. A speech-in-speech masking paradigm was utilized to examine the contribution of the L1-based processing. A phoneme identification task in one language was conducted in the presence or absence of an interferer of a masker of the same or a different language. The degree of interference (i.e., the decrease in identification performance) was postulated to increase as the similarity of underlying processes for the target and masker increases. Experiment 1 was conducted to test the effectiveness of the paradigm. As expected, the interference increased as the similarity of underlying processes for the target and masker increased. Experiment 2 examined the perception of English /r/?/l/ and other phonetic contrasts by Japanese listeners in various adult age groups, to examine whether the degree of interference differs depending on the putative degrees of L1-based processing and on age. The results demonstrated such differences and showed that the L1-based processing can be estimated from the decrease in the identification performance. They also suggested that the perception of /r/?/l/ in the initial singleton and initial cluster positions was high L1-based in older adults.
Rights: Copyright (C)2015 The Acoustical Society of Japan, Rieko Kubo, Masato Akagi, Reiko Akahane-Yamada, Acoustical Science and Technology, 36(5), 2015, 397-407. http://dx.doi.org/10.1250/ast.36.397
URI: http://hdl.handle.net/10119/12997
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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