14thAnnual Conference of the International Speech Communication Association

Lyon, France
August 25-29, 2013

Composing Auditory ERPs: Cross-Linguistic Comparison of Auditory Change Complex for Japanese Fricative Consonants

Makiko Sadakata (1), Loukianos Spyrou (1), Mizuki Shingai (2), Kaoru Sekiyama (2)

(1) Radboud Universiteit Nijmegen, The Netherlands
(2) Kumamoto University, Japan

Two series of Electroencephalogram (EEG) measurements indicated that average auditory event-related potentials (ERPs) elicited by the disyllabic sound /asu/ were different between Japanese and English native listeners. Significant differences were observed in the time window where the P1-N1-P2 complex for /a/ is expected. This difference may be due to the absence/presence of the Auditory Change Complex (ACC) elicited by /s/. Furthermore, by combining the P1-N1-P2 complex elicited by each component of /asu/ (/a//s//u/) recorded individually, it was possible to compose ERPs similar to those elicited by /asu/. Interestingly, the optimized weights of /s/ were significantly lower for Japanese than for native- English listeners, suggesting that the trace of the ACC associated with /s/ was less visible in the actual ERP response to /asu/ for Japanese native listeners. These results may together suggest that Japanese and English native individuals process the /s/ in /asu/ differently and that the ACC is sensitive to language-specific perceptual categories.

Full Paper

Bibliographic reference.  Sadakata, Makiko / Spyrou, Loukianos / Shingai, Mizuki / Sekiyama, Kaoru (2013): "Composing auditory ERPs: cross-linguistic comparison of auditory change complex for Japanese fricative consonants", In INTERSPEECH-2013, 901-905.