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  • Ulrich Natke - Abstract
    time due to disfluencies Although in the upward shift condition fluency measured by PDST was enhanced by 21 the significance level was not reached In nonstuttering persons a difference in global fundamental frequency between the non altered auditory feedback condition and the upward shift condition in the opposite direction of the frequency shift indicates a slight compensating response This change in global fundamental frequency corresponds to 36 cents 100 cents

    Original URL path: http://www.ulrichnatke.de/info/abs_natke2001-1.html (2016-04-29)
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  • Ulrich Natke - Abstract
    word If the first syllable was long stressed fundamental frequency of the vowel significantly increased by 2 Hz corresponding to 25 5 cents under frequency shifted auditory feedback of 1 2 octave while under a shift of 1 10 octave a trend of an increase could be observed If the first syllable was unstressed fundamental frequency remained unaffected Regarding the second syllable significant increases or a trend for an increase

    Original URL path: http://www.ulrichnatke.de/info/abs_natke2001-2.html (2016-04-29)
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  • Ulrich Natke - Abstract
    utter a test word repeatedly with different stress patterns In randomly selected trials auditory feedback provided by headphones was shifted in frequency by 1 2 octave Nonstuttering subjects responded with an increase by 2 Hz of fundamental frequency of the first syllable vowel if it was long stressed Stuttering subjects did not show this effect In both groups unstressed syllables remained unaffected Vowel duration of syllables did not change substantially

    Original URL path: http://www.ulrichnatke.de/info/abs_natke2001-3.html (2016-04-29)
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  • Ulrich Natke - Abstract
    International Speech Motor Conference Nijmegen The Netherlands Uitgeverij Vantilt 258 261 Abstract Speech samples of six preschool children who stutter were analyzed with regard to stuttering and syllabic stress The relative stress of each syllable was rated and syllables were categorized into long and short stress unstressed and intermediate syllables Short stressed syllables were stuttered more often than unstressed syllables but long stressed syllables were not stuttered more often than

    Original URL path: http://www.ulrichnatke.de/info/abs_natke2001-4.html (2016-04-29)
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  • Ulrich Natke - Abstract
    Proceedings 4th International Speech Motor Conference Nijmegen The Netherlands Uitgeverij Vantilt 61 64 Abstract Previous studies have shown that during continuous vocalization voice fundamental frequency voice F0 is modified by frequency shifted auditory feedback In this study voice F0 contours were determined for the first two syllables of a non sense word This way effects of auditory frequency shift and a social stressor public speaking on voice F0 were investigated

    Original URL path: http://www.ulrichnatke.de/info/abs_donath2001.html (2016-04-29)
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  • Ulrich Natke - Abstract
    each with non altered delayed 53 msec and frequency shifted 1 2 octave auditory feedback provided by headphones Stuttering was measured as Percentage of Discontinuous Speech Time by which durations of all stuttering moments are determined and related to the entire duration of the speech sample For both sexes stuttering was reduced by delayed and also by frequency shifted auditory feedback No substantial increases in stuttering over the time within

    Original URL path: http://www.ulrichnatke.de/info/abs_grosser2001.html (2016-04-29)
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  • Ulrich Natke - Abstract
    Hinblick auf die Verursachung des Stotterns dagegen klein bleibt weil die Befunde meist uneinheitlich und widersprüchlich sind Vor allem aber ist ein Mangel an Konzepten festzustellen welche die beim Sprechen ablaufenden sensomotorischen Regelungs und Steuerungsprozesse verdeutlichen die im Normalfall den Sprechfluss auf unterer motorischer Ebene gliedern Hierzu wird ein neues Funktionsmodell der Sprechfluss Kontrolle vorgeschlagen in dessen Rahmen die Kernsymptome des Stotterns dargestellt und erklärt werden können Das Modell erlaubt auch die Beschreibung von sensomotorischen Lernprozessen die beim Erwerb sprechmotorischer Fertigkeiten stattfinden müssen Danach muss die Untersuchung frühkindlicher sprechmotorischer Lernprozesse als eine vordringliche Aufgabe der Stotterforschung angesehen werden Es besteht die Hoffnung aus den hierdurch gewonnenen pathophysiologischen Einsichten auch zu Kausal Aussagen über die Ätiologie des Stotterns zu gelangen Abstract Goal of the Duesseldorfian workgroup is to review and to check experimental results of stuttering re search reported in the literature and to assess present theories of stuttering Obviously there exists a great number of studies concerned with differences between adults who stutter and adults who do not stutter but insight into the origin of stuttering remains low because results are ambigeous and even contradicting Especially theories are missed that cover sensorimotor processes controlling the seg mentation of the speech

    Original URL path: http://www.ulrichnatke.de/info/abs_km2001-1.html (2016-04-29)
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  • Ulrich Natke - Abstract
    and also to synchronize the serialization of words into temporal strings of syllables In long stressed syllables this is done via auditory feedback re afferent control while the utterance of short stressed and unstressed syllables is automatized using internal signals efferent control Young children s problem when crossing from infantile to adultlike speech then seemingly is to learn to inhibit re afferent and to apply efferent control of short stressed

    Original URL path: http://www.ulrichnatke.de/info/abs_km2001-2.html (2016-04-29)
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