Date of Award

Spring 2019

Document Type

Open Access Thesis

Department

Communication Sciences and Disorders

First Advisor

Julius Fridriksson

Abstract

Developing a clearer understanding of the basic impairments which underlie the behavioral characteristics of aphasia is essential for informing the development of targeted and effective treatment techniques. Impairments in sensorimotor integration have already been implicated in the repetition deficits common to individuals with aphasia, but much less is known about the extent to which these integrative deficits occur outside of conduction aphasia and how this manifests behaviorally in areas other than speech repetition. The goal of the present study was to examine these issues further by addressing the following aims: 1) To examine the behavioral and neurophysiological correlates of sensorimotor impairment of speech feedback processing in individuals with aphasia using the altered auditory feedback paradigm and 2) To determine if the poor AAF response is associated with impaired self-correction in aphasia. The combination of multiple neuroimaging modalities and behavioral testing will help expand our knowledge of the pervasiveness of this deficit, the brain regions implicated, and the connections between a basic integrative function and the resultant language-level difficulties.

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