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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
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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.

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.