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Originalartikel

Eine Therapiestudie zur Behandlung des visuellen Neglekts mittels Prismenadaptation

Published Online:November 30, 2009https://doi.org/10.1024/1016-264X.20.4.271

Abstract

Studien weisen auf langfristige Therapieeffekte der Prismenadaptation auf Neglekt hin. Eine quantitative Einschätzung der Effektivität aufgrund von Effektgrößen liegt bisweilen nicht vor. Ziele der vorliegenden Studie waren die zu erreichenden Effektstärken nach einer mehrwöchigen Prismenadaptationstherapie bei visuellem Neglekt zu ermitteln und diese mit bekannten Erfolgsmaßen anderer Interventionsverfahren zu vergleichen. 14 Neglektpatienten bekamen in vier aufeinander folgenden Wochen (3x pro Woche) eine Prismenadaptationstherapie. Zur Erfassung der Therapieeffekte wurden diagnostische Standardtestverfahren und ein Fragebogen zu störungsspezifischen Beeinträchtigungen eingesetzt. Neun von den zehn ermittelten Effektgrößen der einzelnen neglekt-spezifischen Outcomemaße überstiegen den Wert von 0.8. Die Effektstärken für die miterhobene Kontrollvariable Aufmerksamkeit deuteten hingegen nur auf mittelgradige Veränderungen hin. Der Literaturvergleich mit weiteren Neglekttherapieverfahren legt ebenfalls die überdurchschnittlich hohe Effektivität der Prismenadaptationstherapie nahe.


A Study on the Treatment of Visual Neglect by the Use of Prism Adaptation

Neglect recovery after prism adaptation treatment has been shown. However, there is no evidence about the effect sizes to be reached following prolonged prism adaptation therapy. Aims of the present study were to evaluate the effectiveness of prism adaptation on visual neglect and to compare the effect sizes with those of other treatment methods. 14 neglect patients underwent a prism adaptation treatment for four consecutive weeks (3x per week). Therapy effects were assessed by standard tests and an observer rating of neglect symptoms. Nine of the ten effect sizes for the neglect outcome measures were above 0.8 whereas those for the control parameters of attention were of moderate size. The comparison with published meta-analytical effect sizes of common treatments shows also high effectiveness of the prism adaptation therapy.

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