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The attenuation of auditory neglect by implicit cues

Published online by Cambridge University Press:  08 September 2006

A. RAND COLEMAN  and
J. MICHAEL WILLIAMS
A. RAND COLEMAN
Affiliation:
Department of Psychology, Drexel University, Philadelphia, Pennsylvania
J. MICHAEL WILLIAMS
Affiliation:
Department of Psychology, Drexel University, Philadelphia, Pennsylvania
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Abstract

This study examined implicit semantic and rhyming cues on perception of auditory stimuli among nonaphasic participants who suffered a lesion of the right cerebral hemisphere and auditory neglect of sound perceived by the left ear. Because language represents an elaborate processing of auditory stimuli and the language centers were intact among these patients, it was hypothesized that interactive verbal stimuli presented in a dichotic manner would attenuate neglect. The selected participants were administered an experimental dichotic listening test composed of six types of word pairs: unrelated words, synonyms, antonyms, categorically related words, compound words, and rhyming words. Presentation of word pairs that were semantically related resulted in a dramatic reduction of auditory neglect. Dichotic presentations of rhyming words exacerbated auditory neglect. These findings suggest that the perception of auditory information is strongly affected by the specific content conveyed by the auditory system. Language centers will process a degraded stimulus that contains salient language content. A degraded auditory stimulus is neglected if it is devoid of content that activates the language centers or other cognitive systems. In general, these findings suggest that auditory neglect involves a complex interaction of intact and impaired cerebral processing centers with content that is selectively processed by these centers (JINS, 2006, 12, 649–656.)

Keywords

Auditory perceptionAuditory cortex disorderCentral auditory diseaseAuditory processing disorderAuditory inattention
Type
Research Article
Information
Journal of the International Neuropsychological Society , Volume 12 , Issue 5 , September 2006 , pp. 649 - 656
Copyright
© 2006 The International Neuropsychological Society

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