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[Auditory brain stem responses in children with the delayed speech development]

T Zaleski1

  • 1Z Poradni Foniatrycznej Wojewódzkiego Szpitala Dzieciecego w Dziekanowie Leśnym.

Otolaryngologia Polska = the Polish Otolaryngology
|January 1, 1994
PubMed
Summary

Children with delayed speech showed longer auditory brainstem response (ABR) central transmission times. This suggests delayed myelinization may contribute to speech development delays in young children.

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Area of Science:

  • Neuroscience
  • Developmental Pediatrics
  • Audiology

Context:

  • Auditory brainstem response (ABR) assessments are crucial for evaluating auditory pathway function.
  • Delayed speech development in young children (2.5-4 years) presents a diagnostic challenge.
  • This study focuses on children with delayed speech but normal hearing, intelligence, and speech comprehension.

Purpose:

  • To investigate central transmission times using ABR in young children experiencing delayed speech.
  • To explore the relationship between ABR latency and speech development.
  • To identify potential neurological underpinnings of delayed speech.

Summary:

  • ABR examinations revealed significantly prolonged central transmission times (interwave intervals I-III, III-V, I-V) in children with delayed speech compared to typically developing children.

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  • These extended latencies, specifically in auditory pathway neural tracts, were observed despite normal hearing and nonverbal IQ.
  • The findings indicate a potential link between delayed myelinization and delayed speech development.

    • Impact:

    • Suggests that prolonged ABR central transmission times may serve as an early indicator of delayed myelinization in children with speech delays.
    • Provides potential insights into the neurophysiological basis of speech development disorders.
    • Highlights the utility of ABR in identifying subclinical neurological differences in children with developmental delays.