Elsevier

Speech Communication

Volume 6, Issue 4, December 1987, Pages 325-333
Speech Communication

Speech motor control and stuttering: A computational model of adaptive sensory-motor processing

https://doi.org/10.1016/0167-6393(87)90007-0Get rights and content

Abstract

A theoretical account of stuttering is presented in which an inadequacy of neuronal resources for sensory-motor information processing is seen as the basis of the disorder. It is proposed that stutterers are deficient in the processing resources normally responsible for determining and adaptively maintaining the internal models which subserve speech production. A general description of such computational processes is detailed in the form of circuitry for an adaptive controller which can calibrate itself to control any variable, nonlinear, dynamic, multiple input, multiple output system.

Zusammenfassung

Eine theoretische Darstellung des Stotterns wird präsentiert, in der die Unzulänglichkeit neuronaler Ressourcen für senso-motorische Informationsverarbeitung als Basis der Störung aufgefaßt wird. Als Aussage wird formuliert, daß Stotterer defizitär sind im Bereich der Verarbeitungsressourcen, die normalerweise die der Sprachproduktion zuarbeitenden internen Modelle bestimmen und adaptiv erhalten. Eine allgemeine Beschreibung solcher Rechenprozesse wird erläutert anhand eines Schaltkreises für einen adaptiven Regler, der über eine Selbstkalibrierung verfügt und jedes variable, nicht-lineare und dynamische System mit Mehrfachein- und ausgang steuert.

Résumé

Nous expliquons le bégaiement par un déficit au niveau de la quantité de neurones pouvant véhiculer l'information sensorimotrice. Nous pensons que le bègue manque des ressources de traitement nécessaires au maintien et à l'adaptation des modèles internes qui sous-tendent la production de la parole. Nous précisons les mécanismes computationnels sous la forme d'un circuit d'un contrôleur adaptatif autorégulé pour le contrôle d'un système à sorties et à entrées dynamiques multiples, non-linéaires et variables.

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