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Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

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Peripheral hearing loss and auditory temporal ordering ability in children.

Amineh Koravand¹, Benoît Jutras, Nada Roumy

¹Ecole d'orthophonie et d'audiologie, Université de Montréal and Centre de recherche, CHU Sainte-Justine, Canada. amineh.koravand@umontreal.ca

International Journal of Pediatric Otorhinolaryngology

|November 10, 2009

Summary

Children with peripheral hearing loss struggle with auditory sequential organization tasks, especially with verbal stimuli and short intervals. This indicates hearing loss impacts central auditory processing.

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Area of Science:

Auditory Neuroscience
Developmental Psychology
Speech and Hearing Sciences

Background:

Peripheral hearing loss affects auditory system encoding.
Auditory information processing is crucial for development.
Understanding these impacts is vital for early intervention.

Purpose of the Study:

To assess how peripheral hearing loss influences auditory information processing.
To examine sequence reproduction abilities in children with and without hearing loss.
To analyze the effects of stimulus type, number, and temporal ordering on auditory processing.

Main Methods:

Twenty-six children (8-12 years) participated: 13 with hearing loss, 13 without.
Auditory sequential organization task involving verbal and nonverbal stimuli recall.
Variable interstimulus intervals (ISI) of 20 ms, 425 ms, and 1000 ms were used.

Main Results:

Children with hearing loss showed significantly lower accuracy for verbal sequences (similar/complex features) at 425 ms ISI.
No significant performance difference for nonverbal or verbally distinct sequences at 425 ms ISI.
Significantly lower performance in children with hearing loss across all stimuli types at a 20 ms ISI.

Conclusions:

Peripheral hearing loss demonstrably impacts auditory information processing in the central auditory system.
The degree of impact is influenced by stimulus type and temporal sequencing.
Findings highlight the complex relationship between peripheral deficits and central auditory function.