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Related Concept Videos

Brainstem01:19

Brainstem

The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
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Related Experiment Video

Updated: Jul 3, 2026

Preterm EEG: A Multimodal Neurophysiological Protocol
19:32

Preterm EEG: A Multimodal Neurophysiological Protocol

Published on: February 18, 2012

Normal brainstem responses in moderately preterm infants.

Ze D Jiang1, Andrew R Wilkinson

  • 1Department of Pediatrics, Children's Hospital, Fudan University, Shanghai, China. zedong.jiang@paediatrics.ox.ac.uk

Acta Paediatrica (Oslo, Norway : 1992)
|July 17, 2008
PubMed
Summary
This summary is machine-generated.

Brainstem auditory evoked responses (BAERs) showed no significant differences between moderately preterm and term infants at term age. This suggests that standard BAER criteria for term infants can be applied to moderately preterm infants.

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Area of Science:

  • Neonatal neurophysiology
  • Auditory system development
  • Neurodevelopmental assessment

Background:

  • Brainstem auditory evoked responses (BAERs) are crucial for assessing auditory pathway function in neonates.
  • Understanding auditory processing in preterm infants is vital for early detection of neurological impairments.

Purpose of the Study:

  • To compare brainstem auditory evoked responses (BAERs) to varying click rates in moderately preterm and term infants at term-equivalent age.
  • To determine if moderately preterm birth impacts neonatal auditory pathway maturation as assessed by BAERs.

Main Methods:

  • Brainstem auditory evoked responses (BAERs) were recorded in 39 moderately preterm infants (33-36 weeks gestation) and 37 healthy term infants.
  • Stimuli consisted of clicks presented at rates ranging from 21 to 91 Hz.
  • Analysis focused on wave latencies, intervals, and amplitudes, comparing results between the two infant groups.

Main Results:

  • No significant differences were observed in the latencies of waves I, III, V, and the I-V interval between preterm and term infants across all click rates.
  • Minor differences in I-III and III-V intervals, and the III-V/I-III ratio were noted at 91 Hz, but overall BAER click rate-dependent changes were similar.
  • Wave amplitudes were comparable, with a slight increase in wave V amplitude at 91 Hz in preterm infants.

Conclusions:

  • Moderately preterm birth does not appear to cause significant alterations in neonatal brainstem auditory evoked responses (BAERs) at term age.
  • Established BAER normative data and diagnostic criteria for term infants are generally applicable to moderately preterm infants.
  • This finding supports the use of standard auditory neurophysiological assessments for monitoring preterm infant neurodevelopment.