Rhythmic Versus Phonemic Interference in Delayed Auditory Feedback
Autor(en): | Kaspar, Kai Ruebeling, Hartmut |
Stichwörter: | Audiology & Speech-Language Pathology; CHILDREN; CRITICAL INTERVAL; delayed auditory feedback; displaced rhythm hypothesis; Linguistics; MUSIC; PERFORMANCE; phonemic content hypothesis; Rehabilitation; SPEAKERS; SPEECH; speech monitoring; STUTTER; TASKS | Erscheinungsdatum: | 2011 | Herausgeber: | AMER SPEECH-LANGUAGE-HEARING ASSOC | Journal: | JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH | Volumen: | 54 | Ausgabe: | 3 | Startseite: | 932 | Seitenende: | 943 | Zusammenfassung: | Purpose: Delayed auditory feedback (DAF) of a speaker's voice disturbs normal speech production. Various traditional theories assume that the content of the delayed feedback signal interferes with the actual production of a particular speech unit (phonemic content hypothesis). The displaced rhythm hypothesis as an alternative explanation suggests that speech disturbances arise from a disruptive rhythm that is produced by the delayed speech signal. The present experimental study directly contrasted the role of rhythm and speech content in a DAF task using speech units as stimuli. Method: One hundred fifty-one participants read aloud 4 different sequences of double syllables that varied in phonemic content and rhythm while auditory feedback was either nondelayed or delayed by 200 or 400 ms. Results: In line with previous studies, the authors found a peak of disturbances at a delay of about 200 ms, independent of speech rate. More important, the present results clearly support the displaced rhythm hypothesis. A speech rate dependency of this effect was also found. Conclusion: Rhythm seems to be a significant criterion of speech monitoring, and hence a mismatch between spoken words and auditory feedback realized by DAF induces obvious speech problems on rhythmic level regardless of phonemic discrepancy at the same time. |
ISSN: | 10924388 | DOI: | 10.1044/1092-4388(2010/10-0109) |
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geprüft am 14.05.2024