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Link to original content: https://pubmed.ncbi.nlm.nih.gov/846195
Dichotic ear preference in aphasia - PubMed Skip to main page content
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. 1977 Mar;20(1):116-29.
doi: 10.1044/jshr.2001.116.

Dichotic ear preference in aphasia

J P Johnson, R K Sommers, W E Weidner

Dichotic ear preference in aphasia

J P Johnson et al. J Speech Hear Res. 1977 Mar.

Abstract

A dichotic listening test, composed at 30 CVC-word pairs, was administered to 20 adults with aphasia and 20 normal adults. The subjects with aphasia were selected for inclusion in one of four experimental groups which differed according to intitial severity of aphasia and time post onset. All experimental subjects were given a diagnostic language test within the first four weeks following aphasia onset and again at the time of dichotic testing. Difference scores provided a quantitative estimate of language improvement. Data analysis revealed a strong left-ear preference (-0.363) for the experimental subjects which differed significantly from a right-ear preference (+0.290) obtained from the normal control subjects. Further, initial severity of aphasia was found to be a significant variable, capable of influencing the magnitude of ear preference. Multiple regression and partial correlational methods revealed significant, positive relationships between the magnitude of ear preference and initial severity of aphasia and between the former and the magnitude of language improvement. Time post aphasia onset was not shown to be a significant variable. The theoretical and potential clinical relevance of the results are discussed.

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