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Performance of Children with and without Auditory Processing Disorders in Adaptive Temporal Gap Detection Measures
Chandni Jain1, Kishore Tanniru2, Gayathri Kalarikkal1
1Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysuru, Karnataka, India.
International Archives of Otorhinolaryngology
|October 13, 2025
Summary
Children with auditory processing disorder (APD) show deficits in temporal processing. An across-channel gap detection test effectively identified these deficits in children with APD, unlike other measures.
Area of Science:
- Audiology
- Neuroscience
- Developmental Psychology
Background:
- Auditory Processing Disorder (APD) impacts children's ability to process sounds.
- Temporal processing deficits, specifically in gap detection, are common in APD.
- Gap Detection Threshold (GDT) measures the shortest audible gap duration.
Purpose of the Study:
- To compare the performance of children with APD and typically developing (TD) children on various gap detection tests.
- To identify the most effective GDT measure for diagnosing APD in children.
Main Methods:
- Two groups of 12 children (10-12 years) participated: one with APD, one TD.
- Monoural GDT was assessed using broadband noise (BBN), within-channel, and across-channel tests.
- The Psycon platform was used for adaptive testing.
Main Results:
- Significant differences between groups were found only in across-channel GDT.
- No significant differences were observed for BBN GDT or within-channel GDT.
- Children with APD had higher GDTs in the across-channel condition.
Conclusions:
- Across-channel gap detection tests are more sensitive to temporal processing deficits in children with APD.
- This test shows promise as a diagnostic tool for identifying APD.
- Further research can refine diagnostic criteria using across-channel GDT.
