Visual feedback based on expired CO2 as a therapy method for respiratory disturbances in stuttering

• Autorzy: Stankiewicz B. , Adamczyk B. , Zieliński K. , Darowski M.
• Języki publikacji: EN

Abstrakty

EN

A new CO2-based visual feedback therapy method (VF) for respiratory disturbances in stuttering was preliminarily assessed. Sound and expired CO2 signals were registered in 12 stutterers and 12 fluent speakers while speaking without and with VF to control breathing as well as during rest respiration, before each utterance. In stutterers, the end-tidal CO2 (ETCO2), the area under CO2/a time curve (SCO2), and the average emission of CO2 (ECO2 = SCO2/tbreath_cycle) for the CO2 peaks connected with the phrases containing tonic errors (with reference to rest respiration) were higher than those connected with fluent phrases (p<0.000001). Thus, a tendency to hypoventilation caused by tonic errors was observed. The factors of breath ergonomics while speaking FE (based on both signals) of stutterers were lower than those in fluent speakers (p<0.001). Using VF by stutterers increased FE (p<0.005) and decreased stuttering intensity.

Słowa kluczowe

EN

stuttering; respiratory disturbances; therapy; analysis of acoustic and CO2 signals; visual feedback

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2006
• Tom: Vol. 31, No. 4
• Strony: 439--444
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Stankiewicz B.

autor

Adamczyk B.

autor

Zieliński K.

autor

Darowski M.

• Institute of Biocybernetics and Biomedical Engineering, PAS, Ks. Trojdena 4, 02-109 Warszawa, Poland,

Bibliografia

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