Effect of auditory training on the middle latency response in children with (central) auditory processing disorder

E. Schochat, Frank Musiek, R. Alonso, J. Ogata

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The purpose of this study was to determine the middle latency response (MLR) characteristics (latency and amplitude) in children with (central) auditory processing disorder [(C)APD], categorized as such by their performance on the central auditory test battery, and the effects of these characteristics after auditory training. Thirty children with (C)APD, 8 to 14 years of age, were tested using the MLR-evoked potential. This group was then enrolled in an 8-week auditory training program and then retested at the completion of the program. A control group of 22 children without (C)APD, composed of relatives and acquaintances of those involved in the research, underwent the same testing at equal time intervals, but were not enrolled in the auditory training program. Before auditory training, MLR results for the (C)APD group exhibited lower C3-A1 and C3-A2 wave amplitudes in comparison to the control group [C3-A1, 0.84 μV (mean), 0.39 (SD - standard deviation) for the (C)APD group and 1.18 μV (mean), 0.65 (SD) for the control group; C3-A2, 0.69 μV (mean), 0.31 (SD) for the (C)APD group and 1.00 μV (mean), 0.46 (SD) for the control group]. After training, the MLR C3-A1 [1.59 μV (mean), 0.82 (SD)] and C3-A2 [1.24 μV (mean), 0.73 (SD)] wave amplitudes of the (C)APD group significantly increased, so that there was no longer a significant difference in MLR amplitude between (C)APD and control groups. These findings suggest progress in the use of electrophysiological measurements for the diagnosis and treatment of (C)APD.

Original languageEnglish (US)
Pages (from-to)777-785
Number of pages9
JournalBrazilian Journal of Medical and Biological Research
Volume43
Issue number8
DOIs
StatePublished - Aug 2010
Externally publishedYes

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Keywords

  • Auditory processing
  • Auditory training
  • Central auditory processing disorder
  • Evoked potentials
  • Middle latency response

ASJC Scopus subject areas

  • Neuroscience(all)
  • Medicine(all)
  • Immunology
  • Pharmacology, Toxicology and Pharmaceutics(all)
  • Physiology
  • Biochemistry
  • Biophysics
  • Cell Biology

Cite this

Effect of auditory training on the middle latency response in children with (central) auditory processing disorder. / Schochat, E.; Musiek, Frank; Alonso, R.; Ogata, J.

In: Brazilian Journal of Medical and Biological Research, Vol. 43, No. 8, 08.2010, p. 777-785.

Research output: Contribution to journalArticle

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abstract = "The purpose of this study was to determine the middle latency response (MLR) characteristics (latency and amplitude) in children with (central) auditory processing disorder [(C)APD], categorized as such by their performance on the central auditory test battery, and the effects of these characteristics after auditory training. Thirty children with (C)APD, 8 to 14 years of age, were tested using the MLR-evoked potential. This group was then enrolled in an 8-week auditory training program and then retested at the completion of the program. A control group of 22 children without (C)APD, composed of relatives and acquaintances of those involved in the research, underwent the same testing at equal time intervals, but were not enrolled in the auditory training program. Before auditory training, MLR results for the (C)APD group exhibited lower C3-A1 and C3-A2 wave amplitudes in comparison to the control group [C3-A1, 0.84 μV (mean), 0.39 (SD - standard deviation) for the (C)APD group and 1.18 μV (mean), 0.65 (SD) for the control group; C3-A2, 0.69 μV (mean), 0.31 (SD) for the (C)APD group and 1.00 μV (mean), 0.46 (SD) for the control group]. After training, the MLR C3-A1 [1.59 μV (mean), 0.82 (SD)] and C3-A2 [1.24 μV (mean), 0.73 (SD)] wave amplitudes of the (C)APD group significantly increased, so that there was no longer a significant difference in MLR amplitude between (C)APD and control groups. These findings suggest progress in the use of electrophysiological measurements for the diagnosis and treatment of (C)APD.",
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