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Related Experiment Video

Updated: Jan 4, 2026

Infant Auditory Processing and Event-related Brain Oscillations

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Development of temporal auditory processing in childhood: Changes in efficiency rather than temporal-modulation

Laurianne Cabrera¹, Léo Varnet², Emily Buss³

¹Department of Speech, Hearing and Phonetic Sciences, University College London, Chandler House, 2 Wakefield Street, WC1N 1PF, London, United Kingdom.

The Journal of the Acoustical Society of America

|November 2, 2019

Summary

This summary is machine-generated.

Children

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Published on: January 23, 2017

Area of Science:

Auditory Neuroscience
Developmental Psychology

Background:

Amplitude modulation (AM) detection is crucial for speech perception.
AM sensitivity develops through childhood, but underlying mechanisms are unclear.

Purpose of the Study:

To investigate the developmental trajectory of AM detection.
To differentiate between sensory and processing efficiency factors in AM development.
To link AM detection to speech-in-noise perception in children.

Main Methods:

Psychophysical tasks measuring AM detection thresholds in children (5-11 years) and adults.
Varying AM rates (4, 8, 32 Hz) and carrier properties to assess AM masking.
Computational modeling to assess the role of internal noise.

Main Results:

AM detection thresholds improved significantly in children aged 5-11 years.
Susceptibility to AM masking slightly increased with age.
Sensory factors (AM rate/carrier effects) appeared mature by age 5.
Internal noise reduction explained developmental changes in AM sensitivity.
AM sensitivity correlated with consonant identification in noise.

Conclusions:

Auditory processing efficiency, specifically reduced internal noise, drives AM detection development.
Mature sensory systems support AM detection by age 5.
Improved AM detection enhances temporal processing for speech perception in children.