Refine
Document Type
- Doctoral Thesis (2)
Has Fulltext
- yes (2)
Is part of the Bibliography
- no (2)
Keywords
- Logopädie (2) (remove)
Institute
- Institut für Sonderpädagogik (2) (remove)
Abstract: Immediate effect study Purpose: The immediate effects of altered auditory feedback (AAF) and a placebo condition on clinical attributes of stuttering during scripted as well as spontaneous speech are investigated herein. The primary purpose is the extension of the evidence-base of the impact of AAF on the clinical characteristics of stuttering. Method: Two commercially available AAF devices were used to create the delayed auditory feedback (DAF) and frequency altered feedback (FAF) effects. The participants consisted of thirty German-speaking people who stutter (PWS), aged 18 to 68 (M = 36.5; SD = 15.2). Each subject produced four sets of oral readings, three sets of monologs and three sets of dialogs. The participants were exposed to different experimental conditions (No device, Placebo, active AAF using Device A, and active AAF using Device B) while producing the speech samples. The recordings were then electronically analyzed to detect changes in select features of stuttering; frequency, duration, speech rate, articulation rate and core behaviors. The occurrence of these variables was examined across all speech samples collected within the four experimental conditions. Results: A statistically significant difference in the frequency of stuttered syllables (%SS) was found while using both devices (p = .000). Although individual reactions varied widely, the most notable reductions in %SS occurred within the reading (M = 2.33, SD = 3.75) and monolog (M = 2.26, SD = 3.32) samples. Thus, active AAF settings had the least impact on speech fluency during conversational speech (M = 1.49, SD = 2.71). During the placebo condition (no active AAF parameters), the subject group also experienced a statistically significant decline in %SS (p = .028). Conclusion: This result indicates that the effects of AAF alone may not be the sole reason for fluency enhancements experienced when using a portable speech aid. Abstract: longitudinal trail Purpose: The effects of a portable altered auditory feedback (AAF) device on the severity of stuttering over a three-month period were investigated. The main goal was to examine the usage behavior and fluency-enhancements displayed during extended device utilization. Method: Qualitative data on implementation environments, utilization patterns and user satisfaction were collected weekly from a group of seven adults (M = 45.3; SD = 11.4) who stutter. For the analysis of quantitative changes in stuttering severity, speech samples were collected in person at the beginning and end of the trial period. Two phone conversations throughout the study provided additional conversational samples. Results: Individual responses were quite diverse within both quantitative and qualitative measures. Group analysis revealed that conversational speech was overall significantly more fluent when a device was used. The percentage of stuttered syllables was significantly lower z = -2.201, p = .028, r = -0.18 upon first using AAF (with device: Mdn = 1.53; without device: Mdn = 3.53) and during the personal conversation at the end of three months (with device: Mdn = 1.89; without device: Mdn = 3.97). However, during the two mid-trial phone conversations during which a device was used (T2 & T3), stuttering frequency remained largely unaltered T2: z = -.943, p = .345 (Mdn = 3.87); T3: z = -1.57, p = .116 (Mdn = 3.00). The analysis of weekly questionnaires and user diaries revealed that the device was most commonly used in familiar environments (63% at home). On average, the speech aid was utilized four to five times a week, with an overall satisfaction rate of 42%. Conclusion: Some meaningful conclusions for clinical work with clients wishing to use AAF can be drawn from these results. While AAF has its limits in reducing stuttering, ability to use a device may be optimized if usage is acquired in a guided clinical process.
Die Arbeit bietet zunächst eine Aufarbeitung des theoretischen Hintergrundes der Spracherwerbsstörung und setzt sich dabei mit Fragen des ungestörten und gestörten Grammatikerwerbs, der Ätiologie, der Persistenz von Spracherwerbsstörungen, der Therapieeffektivität und der Diagnostik auseinander. Im Mittelpunkt steht dann die Darstellung einer Therapieeffektivitätsstudie, die den therapie- und unterrichtsdidaktischen Ansatz der "Kontextoptimierung" in der Kleingruppentherapie sowie im therapieintegrierten Unterricht an 6 Schulen für Sprachbehinderte (Klassenstufe 3 und 4) evaluiert. Das Ziel der Intervention lag dabei in der Förderung des Nebensatzerwerbs. Für die Erhebung des jeweils erreichten Erwerbsstands komplexer syntaktischer Fähigkeiten wurde ein in der Arbeit dokumentiertes Diagnostikverfahren (Screening im Klassenverband und umfassenderes Material für die Einzelüberprüfung) entwickelt. Die durchgeführte Intervention wird anhand praktischer Beispiele konkretisiert. Der Therapieerfolg wurde zu zwei Zeitpunkten (Posttest I: unmittelbar nach der Intervention; Postest II: nach einer interventionsfreien Phase 3 Monate nach Therapieabschluss) erhoben. Die Auswertung erfolgte sowohl gruppenbezogen als auch einzelfallbezogen und vergleicht jeweils - den Ausgangsstand und den nach der Förderung erreichten Stand des Nebensatzerwerbs, - die auf den Nebensatz bezogenen sprachlichen Leistungen in der Experimentalgruppen und einer Kontrollgruppe sowie - den Einfluss unterschiedlicher Faktoren (u. a. Alter, Mehrsprachigkeit, auditive Verarbeitungsfähigkeiten) auf den Therapieerfolg. Ergänzend wurde eine Pilotstudie in die Untersuchung integriert, in der die Weiterentwicklung grammatischer Fähigkeiten in einem (auf das spezielle Ziel des Nebensatzwerwerbs bezogen)interventionsfreien Zeitraum bei spracherwerbsgestörten Kindern überprüft wurde, die in der Eingangsuntersuchung der Produktion von Nebensätzen bereits einen Korrektheitsgrad von mindestens 60% erreicht hatten.