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Full-Text Articles in Medicine and Health Sciences
Amplitude Modulation Perception In Children With Auditory Processing Disorder, Winnie Ly
Amplitude Modulation Perception In Children With Auditory Processing Disorder, Winnie Ly
Electronic Thesis and Dissertation Repository
Children with developmental delays in auditory processing are more prone to experience difficulty in a classroom setting. Temporal cues are reported to be important for speech understanding in noisy and quiet conditions. One method to assess the ability to discriminate temporal cues is the amplitude modulation task. The purpose of this thesis was to examine amplitude modulation perception in listeners (children with auditory processing disorder (APD), typically developing children and adults) through an adaptive amplitude modulation task, estimation of psychometric functions for this task study and verification of the amplitude modulation task on a portable device (iPaas-based Application Suite …
Role Of The Cochlea And Efferent System In Children With Auditory Processing Disorder, Sriram Boothalingam
Role Of The Cochlea And Efferent System In Children With Auditory Processing Disorder, Sriram Boothalingam
Electronic Thesis and Dissertation Repository
Auditory processing disorder (APD) is characterized by difficulty listening in noisy environments despite normal hearing thresholds. APD was previously thought to be restricted to deficits in the central auditory system. The current work sought to investigate brainstem and peripheral mechanisms that may contribute to difficulties in speech understanding in noise in children with suspected APD (sAPD). Three mechanisms in particular were investigated: cochlear tuning, efferent function, and spatial hearing. Cochlear tuning was measured using stimulus frequency otoacoustic emission (SFOAE) group delay. Results indicate that children suspected with APD have atypically sharp cochlear tuning, and reduced medial olivocochlear (MOC) functioning. Sharper-than-typical …