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Central Auditory Nervous System Dysfunction in Echolalic Autistic Individuals

1981; American Speech–Language–Hearing Association; Volume: 24; Issue: 3 Linguagem: Inglês

10.1044/jshr.2403.420

1558-9102

Amy M. Wetherby, Robert L. Koegel, Maurice I. Mendel,

Hearing, Cochlea, Tinnitus, Genetics

No AccessJournal of Speech, Language, and Hearing ResearchResearch Article1 Sep 1981Central Auditory Nervous System Dysfunction in Echolalic Autistic Individuals Amy Miller Wetherby, Robert L. Koegel, and Maurice Mendel Amy Miller Wetherby University of California at Santa Barbara Google Scholar , Robert L. Koegel University of California at Santa Barbara Google Scholar and Maurice Mendel University of California at Santa Barbara Google Scholar https://doi.org/10.1044/jshr.2403.420 SectionsAboutPDF ToolsAdd to favoritesDownload CitationTrack Citations ShareFacebookTwitterLinked In Accumulating evidence indicates either a primary or secondary cortical dysfunction in the language-dominant hemisphere of autistic children. In this study, the central auditory function of six autistic subjects was assessed experimentally using a battery of tests which included the Staggered Spondaic Word Test, the Competing Environmental Sound Test, and monaural hearing tests, as well as supplementary measures of language and handedness. The autistic subjects ranged from 8 to 24 years in age and displayed a wide range of language abilities and severity of echolalia. The results showed that all the subjects had normal hearing on the monaural speech tests; however, there was indication of central auditory nervous system dysfunction in the language dominant hemisphere, inferred from the dichotic tests, for those subjects displaying echolalia. Essentially normal dichotic test results were obtained for those subjects who were previously diagnosed as autistic but were no longer echolalic. One subject who received a year of intensive language treatment was assessed periodically throughout the year to chart changes in performance on the test of central auditory function for dichotic stimuli. This subject showed changes in the dichotic test of central auditory function which were consistent with the language improvement shown during the year. For each subject, the locus of central auditory dysfunction indicated by the assessment measures was consistent with the characterized language deficits. The results are discussed from a neurolinguistic framework in an effort to delineate a neurogenic etiology of autistic language deficits. Additional Resources FiguresReferencesRelatedDetailsCited ByJournal of Speech, Language, and Hearing Research41:2 (355-373)1 Apr 1998Central Auditory Processing Disorder in School-Aged ChildrenAnthony T. Cacace and Dennis J. McFarlandAmerican Journal of Audiology4:3 (36-48)1 Nov 1995Modality Specificity as a Criterion for Diagnosing Central Auditory Processing DisordersDennis J. McFarland and Anthony T. Cacace Volume 24Issue 3September 1981Pages: 420-429 Get Permissions Add to your Mendeley library HistoryReceived: Oct 4, 1979Accepted: Jun 30, 1980 Published in issue: Sep 1, 1981 Metrics Topicsasha-topicsasha-article-typesCopyright & PermissionsCopyright © 1981 American Speech-Language-Hearing AssociationPDF DownloadLoading ...