Auditory Temporal Processing Impairment Neither Necessary nor Sufficient for Causing Language Impairment in Children Research Article
EDITOR'S AWARD
Research Article  |   December 01, 1999
Auditory Temporal Processing Impairment
 
Author Affiliations & Notes
  • D. V. M. Bishop
    Department of Experimental Psychology University of Oxford, UK
  • R. P. Carlyon
    MRC Cognition and Brain Sciences Unit Cambridge, UK.
  • J. M. Deeks
    MRC Cognition and Brain Sciences Unit Cambridge, UK.
  • S. J. Bishop
    MRC Cognition and Brain Sciences Unit Cambridge, UK.
Article Information
Hearing Disorders / Language Disorders / Hearing / Research Articles
Research Article   |   December 01, 1999
Auditory Temporal Processing Impairment
Journal of Speech, Language, and Hearing Research, December 1999, Vol. 42, 1295-1310. doi:10.1044/jslhr.4206.1295
History: Received December 4, 1998 , Accepted May 12, 1999
 
Journal of Speech, Language, and Hearing Research, December 1999, Vol. 42, 1295-1310. doi:10.1044/jslhr.4206.1295
History: Received December 4, 1998; Accepted May 12, 1999

Fourteen twin pairs, aged 8 to 10 years, were tested 3 times over 12 months; they included 11 children with language impairment (LI), 11 control children matched on nonverbal ability and age, and 6 co-twins who did not meet criteria for LI or control status. Thresholds were estimated for detecting a brief backward-masked tone (BM), detection of frequency modulation (FM), and pitch discrimination using temporal cues (Δf0). Both BM and FM thresholds improved with training, and by the 2nd test session, FM thresholds were in the adult range. There were marked individual differences on BM and Δf0, and, for both tasks, performance correlated with Tallal’s Auditory Repetition Task administered 2 years previously. However, no auditory measure gave significant differences between LI and control groups; performance was influenced more by nonverbal than language ability. Some children did have a stable pattern of poor performance on certain auditory tasks, but their good FM detection raised questions about whether processing of auditory temporal information is abnormal. We found no evidence that auditory deficits are a necessary or sufficient cause of language impairments.

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