Abstract
The reaction time for the recognition of different emotions in speech against a background of noise in stutterers and normally speaking children between the ages of 7 to 17 years was studied. The specific differences between these two types of subjects in processing the emotional speech component were more markedly pronounced in terms of the reaction time than the effectiveness of recognition. An increase in the noise level decreases the effectiveness of recognition and increases the reaction time; however, the stutterers do not show a statistically significant lengthening of the reaction time. With increasing age, the recognition time of the emotion type in both groups of subjects is shortened, although sex-related differences may be observed: only in stuttering girls is the difference in the recognition time between the junior and senior groups great enough and comparable to that of normally speaking girls. The stuttering children (SC) were found to have significantly shorter recognition times of the emotion types than their normally speaking counterparts. In this connection, the hypothesis about the specific features of processing the acoustic signal in the sensory memory of SC was advanced. These results suggest that the specific features of the processes occurring in the memory subsystems of stutterers may be one of the causes of stuttering, along with the differences in interhemispheric relations found in previous works.
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Dmitrieva, E.S., Gel'man, V.Y. Perception of the Emotional Speech Component by Stuttering Children Associated with Noise: Communication II. Analysis of the Temporal Characteristics of the Recognition of Different Emotions. Human Physiology 27, 36–41 (2001). https://doi.org/10.1023/A:1007103306989
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DOI: https://doi.org/10.1023/A:1007103306989