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Cortical auditory evoked potentials in children who stutter.

INTRODUCTION: It has been hypothesized that impaired auditory processing influence the occurrence of stuttering. Also, it is suggested that speech perception in children who stutter differed from normal. Auditory processing should be investigated in children who stutter shortly after the onset of stuttering in order to evaluate the extent to which impaired auditory processing contributes to the development of stuttering. CAEPs provide the necessary temporal and spatial resolution to detect differences in auditory processing and the neural activity that is related or time-locked to the auditory stimulus. The primary goal of the present study was to determine the difference in latency and amplitude of P1-N2 complex between children who stutter and non-stuttering children in response to speech stimuli.

MATERIAL & METHODS: This case-control study was performed over 60children, 30were non-stuttering children (control group) and 30were children who stutter (study group) ranging in severity from Bloodstien I to Bloodstien IV in the age range of 8-18 years.

RESULTS: CAEPs of children who stutter with stuttering severity Bloodstien IV showed significant prolonged latencies and reduced amplitudes when blocks and IPDs were the most predominant core behaviors. P1 and N1 were prolonged in concomitant behaviors.

CONCLUSION: It could be speculated that speech processing was affected in children who stutter with stuttering severity Bloodstien IV at the level of early perceptual auditory cortex.

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