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Updated: Jun 8, 2026

Infant Auditory Processing and Event-related Brain Oscillations

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Auditory processing during sleep in preterm infants: An event related potential study.

Agnese Suppiej¹, Giovanni Mento, Vincenzo Zanardo

¹Child Neurology and Clinical Neurophysiology, Department of Paediatrics, University of Padova, 35100 Padova, Italy. suppiej@pediatria.unipd.it

Early Human Development

|October 19, 2010

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Premature infants show distinct auditory processing during active sleep, responding to deviant tones with specific brain activity not seen in quiet sleep. This research uses auditory event-related potentials (AERPs) to understand auditory development in preterm neonates.

Area of Science:

Neuroscience
Developmental Pediatrics
Auditory Neuroscience

Background:

Premature infants exhibit unique developmental trajectories, particularly in sensory processing.
Understanding auditory system maturation is crucial for early intervention in Neonatal Intensive Care Unit (NICU) populations.
Auditory event-related potentials (AERPs) offer a non-invasive method to assess auditory pathway function in infants.

Purpose of the Study:

To investigate auditory processing in premature infants during different sleep states (active vs. quiet) using AERPs.
To determine if sleep state influences the brain's response to auditory stimuli in preterm neonates.
To explore the utility of AERPs for assessing auditory development in high-risk infant populations.

Main Methods:

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Last Updated: Jun 8, 2026

Infant Auditory Processing and Event-related Brain Oscillations

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

How to Obtain Reliable Visual Event-related Potentials in Newborns

How to Obtain Reliable Visual Event-related Potentials in Newborns

Published on: October 24, 2019

Preterm EEG: A Multimodal Neurophysiological Protocol

Preterm EEG: A Multimodal Neurophysiological Protocol

Published on: February 18, 2012

Twenty-six premature infants (mean GA 30 weeks) were studied using an auditory odd-ball paradigm with 1000Hz standard and 2000Hz deviant tones.

Auditory event-related potentials (AERPs) were recorded at frontal and temporal scalp locations during active and quiet sleep.

Data analysis involved repeated measures ANOVA, focusing on responses to standard and deviant tones, with 18 infants included in final analysis.

Main Results:

Responses to standard tones were similar across active and quiet sleep states.
Auditory responses to deviant tones, characterized by increased frontal negativity (200-300ms post-stimulus), were observed exclusively during active sleep.
Significant effects of electrode placement and sleep condition on evoked potentials were identified.

Conclusions:

Sleep state significantly modulates auditory processing in premature infants, with active sleep showing a more differentiated response to auditory novelty.
AERPs can reveal subtle differences in auditory perception related to sleep state in preterm neonates.
These findings have implications for refining evoked potential methodologies and understanding neurodevelopmental outcomes in NICU graduates.