Reduced Speech Perceptual Acuity for Stop Consonants in Individuals Who Stutter.
Purpose: In individuals who stutter (IWS), speech fluency can be enhanced by altered auditory feedback, although it has adverse effects in control speakers. This indicates abnormalities in the auditory feedback loop in stuttering. Current motor control theories on stuttering propose an impaired proc...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 55; no. 1; pp. 276 - 290 |
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| Autores principales: | , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Speech-Language-Hearing Association
Feb2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=72014523&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 72014523 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Feb2012 vid: 55 iid: 1 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 72014523 10.1044/1092-4388(2011/10-0224) ppf: 276 ppct: 14 formats: fmt: @attributes: type: P size: 327KB tig: atl: Reduced Speech Perceptual Acuity for Stop Consonants in Individuals Who Stutter. aug: au: Neef, Nicole E. Sommer, Martin Neef, Andreas Paulus, Walter Gudenberg, Alexander Wolff von Jung, Kristina Wüstenberg, Torsten affil: Department of Clinical Neurophysiology, Georg August University, Göttingen, Germany Institute of the Kassel Stuttering Therapy, Bad Emstal, Germany Charité Universitætsmedizin, Berlin, Germany su: Germany Analysis of variance Phonetics Case-control method Consonants Research funding Physiological aspects of speech Speech perception Stuttering T-test (Statistics) U-statistics Wave analysis Sound spectrography Data analysis software Descriptive statistics sug: subj: Analysis of variance Phonetics Case-control method Germany Consonants Research funding Physiological aspects of speech Speech perception Stuttering T-test (Statistics) U-statistics Wave analysis Sound spectrography Data analysis software Descriptive statistics keyword: phoneme categorization speech perception stuttering voice onset time phoneme categorization speech perception stuttering voice onset time ab: Purpose: In individuals who stutter (IWS), speech fluency can be enhanced by altered auditory feedback, although it has adverse effects in control speakers. This indicates abnormalities in the auditory feedback loop in stuttering. Current motor control theories on stuttering propose an impaired processing of internal forward models that might be related to a blurred auditory-to-motor translation. Although speech sound perception is an essential skill to form internal models, perceptual acuity has not been studied in IWS so far. The authors tested the stability of phoneme percepts by analyzing participants' ability to identify voiced and voiceless stop consonants. Method: Two syllable continua were generated by systematic modification of the voice onset time. The authors determined speech perceptual acuity by means of discriminatory power in 25 IWS and 24 matched control participants by determining the phoneme boundaries and by quantifying the interval of voice onset times for which phonemes were perceived ambiguously. Results: In IWS, discriminatory performance was weaker and less stable over time when compared with control participants. In addition, phoneme boundaries were located at longer voice onset times in IWS. Conclusion: Persistent developmental stuttering is associated with less reliable phonological percepts, supporting current theories regarding the sensory -- motor interaction in human speech. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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