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ABSTRACT Background information: Stuttering is defined as a temporal disruption of the successive and simultaneous programming of muscular movements required to produce a speech sound or its link to the next sound. Few of the models and theories postulated that individuals who stutter were found to have deficits in auditory tone monitoring. Aim of the study: The main aim of the study was to analyze the auditory tone monitoring with sequence of two pure tones and to compare between children who stutter and children who do not stutter. Method: Thirty Four children in the age range of 8 to 12 years who were diagnosed as having stuttering with a severity of mild and above degree of stuttering and thirty four age and gender matched children with no stuttering participated in the study. The experiment included Auditory Tone monitoring task which was conducted in two phases: Stimulus Preparation and Task Design Programming; Administration of the tasks on Children who stutter (CWS) and Children who do not stutter (CNS) groups. The reaction time and accuracy of the participants’ responses were measured automatically using DMDX software. Results: In auditory tone monitoring task, CWS took longer time to respond to presence/absence of the target tone and was less accurate when compared to CNS. The mean values were found to be comparable across both the groups, indicating that the participants from CWS group were slow in eliciting “Yes” (initial - ׀z׀ = 1.77; p>0.05; medial - ׀z׀ = 0.25; p>0.05) and “No” (- ׀z׀ = 0.40; p>0.05; medial - ׀z׀ = 0.26; p>0.05) responses when compared to participants from CNS group. However no significant difference was found between clinical and normal groups. The participants from CNS group were found to be faster in monitoring the presence of target tone (1 KHz) occurring in initial and medial positions when compared to participants from CWS group. For CWS group, their speed of monitoring the absence of target tone in both the positions was found to be slower when compared to CNS group It can be concluded that a subgroup of CWS may experience general monitoring deficits and in specific they experience deficits in auditory tone monitoring process. Conclusion: The present study adds on to the theoretical knowledge on nature of stuttering in children, especially supporting the auditory deficits in children with stuttering.
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