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[Central transmission time in children with the delayed language development]
1Pracownia Audiologiczno-Foniatryczna Centrum Medycznego Kształcenia Podyplomowego w Dziekanowie Leśnym.
Otolaryngologia Polska = the Polish Otolaryngology
|May 24, 2000
Summary
Children with speech delays showed prolonged auditory brainstem response (ABR) central transmission times (CTT). Follow-up ABR tests revealed normalized CTT in those with improved speech, but persistent delays in children with dyslalia and dyslexia.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Speech-Language Pathology
Context:
- Auditory Brainstem Response (ABR) examinations are crucial for assessing auditory pathway function in children.
- Previous research in 1992 identified prolonged central transmission time (CTT) in children experiencing delayed speech development.
- This study revisits these children after a four-year interval to evaluate the long-term auditory pathway function.
Purpose:
- To investigate the longitudinal changes in central transmission time (CTT) in children with a history of delayed speech.
- To determine if improvements in speech correlate with normalization of auditory pathway function as measured by CTT.
- To assess the persistent impact of speech disorders like dyslalia and dyslexia on auditory processing.
Summary:
- A cohort of children initially identified with delayed speech underwent repeat Auditory Brainstem Response (ABR) examinations four years later.
- Children who demonstrated significant speech improvement showed normalized central transmission times (CTT) on ABR.
- Conversely, children with persistent speech difficulties, specifically dyslalia and dyslexia, continued to exhibit prolonged interpeak latencies, indicating ongoing auditory processing delays.
Impact:
- This research highlights the potential for auditory processing improvements alongside speech development, suggesting a link between the two.
- Findings underscore the utility of ABR in monitoring auditory pathway maturation in children with speech and language disorders.
- The study provides evidence for the enduring impact of conditions like dyslalia and dyslexia on central auditory processing, informing targeted interventions.