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Volume :47 Issue : 3 2019      Add To Cart                                                                    Download

Functional Cerebral Hemispheric Differences in Processing of Verbal and Nonverbal Stimuli in Stuttering Children Using Dichotic Listening

Auther : Nasser Alkornfoly Abdelaziz Batea Mohamed

This study aimed to investigate the functional differences between two hemispheres in the processing of verbal and nonverbal stimuli in stuttering children by a dichotic listening test. The sample was comprised of (40) children at Amer Bin Omar School for Boys, Hawalli, Kuwait city, with an age average of (12.73) years and of those enrolled in the academic year (2016/2017). They were divided into two groups: an experimental group that consisted of (20) stuttering children, and a control group that consisted of (20) non-stuttering children. All were healthy with no hearing problems according to their medical reports. To achieve the objectives of the study, the Quasi-experimental Method was used, and three main tools were implemented: the measure of type and severity of stuttering, the handedness questionnaire, and the dichotic listening test.The results showed no statistically significant differences between the average lateral of the right ear (left hemisphere) and the average lateral of the left ear (right hemisphere) in stuttering children (experimental group) on verbal stimuli, while there were statistically significant differences between mean right ear lateraling (left hemisphere) and average left ear lateraling (right hemisphere) in favor of left ear (right hemisphere) on nonverbal stimuli in the experimental group.The results also showed significant differences between the experimental and control groups on verbal stimuli in favor of the right ear (left hemisphere) for control group, and there were no differences between the experimental and control groups on the non-verbal stimuli. The results were discussed in the light of previous relevant studies.
Keywords: Functional Differences - Cerebral Hemispheres - Processing - Verbal Stimuli- Nonverbal Stimuli- Stuttering - Dichotic Listening.

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