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Association between autism spectrum disorder and changes in the central auditory processing in children

Laura Faustino Gonçalves1, Karina Mary Paiva1, Fernanda Soares Aurélio Patatt2

  • 1Universidade Federal de Santa Catarina - Florianópolis (SC), Brasil.

Revista Da Associacao Medica Brasileira (1992)
|June 23, 2021
PubMed

Insights

Children with Autistic Spectrum Disorder (ASD) frequently experience Central Auditory Processing Disorder (CAPD). This review found evidence of auditory processing disturbances in children diagnosed with ASD.

Area of Science:

  • Neuroscience
  • Developmental Pediatrics
  • Audiology

Background:

  • Autistic Spectrum Disorder (ASD) is a complex neurodevelopmental condition.
  • Central Auditory Processing Disorder (CAPD) affects how the brain interprets sounds.
  • The relationship between ASD and CAPD in children requires further scientific investigation.

Purpose of the Study:

  • To synthesize evidence on the association between Autistic Spectrum Disorder and Central Auditory Processing Disorder in children.
  • To address the research question: What is the association between Autistic Spectrum Disorder and Alteration of Auditory Processing in Children?

Main Methods:

  • A systematic literature search was conducted using MeSH terms: (auditory processing) and (children) and (autism) and (neurological disorders).
  • Databases searched included MEDLINE (PubMed), LILACS, and SciELO for studies published between 2010 and 2020.
  • Included study designs were descriptive, cross-sectional, cohort, and case studies, with a quality score of at least six on a modified literature scale.

Main Results:

  • Out of 126 initially retrieved papers, 17 met the inclusion criteria.
  • Only two studies provided audiological results directly addressing the research question.
  • Evidence suggests potential auditory processing disturbances in children with ASD.

Conclusions:

  • Children diagnosed with Autistic Spectrum Disorder may exhibit Central Auditory Processing Disorder.
  • Observed changes include alterations in brainstem evoked response audiometry (latencies) and N1c wave amplitude (latency and laterality).
  • Behavioral auditory processing assessments also indicated differences, suggesting CAPD is common in children with ASD.
Abstract

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