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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 …

Physiological And Behavioral Evidence Of Auditory Processing Deficit In Children Suspected Of Auditory Processing Disorder, Sangamanatha Ankmnal Veeranna

Electronic Thesis and Dissertation Repository

A series of studies were carried out to examine the neural and behavioral processing of acoustic stimuli in children with suspected auditory processing disorder (sAPD).

The click-evoked auditory brainstem responses recorded from children with sAPD and adults were analyzed using traditional clinical measures and detailed analysis seeking to explore the separate contributions of axonal conduction and synaptic transmission. Clinical measures revealed significant prolongation of absolute latencies and interwave intervals in children with sAPD compared to adults. Examination of responses delineating axonal vs. synaptic transmission showed frequent delays in synaptic factors and fewer instances of delays related to axonal conduction in …