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Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
Published on: January 29, 2014
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Abnormalities in cortical auditory responses in children with central auditory processing disorder.
Amineh Koravand1, Benoît Jutras1, Maryse Lassonde2
1École d'orthophonie et d'audiologie, Université de Montréal and CHU Sainte-Justine Research Center, Canada.
Neuroscience
|January 22, 2017
Summary
The N2 response may indicate neural deficits in children with central auditory processing disorder (CAPD). This finding suggests maturational factors may influence auditory processing in these children.
Area of Science:
- Neuroscience
- Audiology
- Developmental Psychology
Background:
- Central Auditory Processing Disorder (CAPD) affects auditory information processing.
- Identifying neural markers is crucial for understanding CAPD.
- Auditory cortical responses and mismatch negativity (MMN) are potential indicators.
Purpose of the Study:
- To identify neural deficit markers in children with CAPD.
- To measure auditory cortical responses and MMN.
- To compare children with and without CAPD.
Main Methods:
- Used passive oddball paradigms with verbal and nonverbal stimuli.
- Recorded cortical auditory-evoked potentials and MMN.
- Studied 23 children (9-12 years old), 10 with CAPD and 13 without.
Main Results:
- No significant differences in P1 latency or amplitude between groups.
- Children with CAPD showed prolonged N2 latency and reduced amplitude.
- No significant group differences were found for MMN responses.
Conclusions:
- The N2 response may serve as a marker for neural deficits in CAPD.
- Maturational factors or alternative mechanisms might underlie central auditory processing in children with CAPD.
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