Inhibitory control in childhood stuttering

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• 作者：Kurt Eggers^a ; ^b ; ^{Kurt.eggers@lessius.eu} ; ^{kurt.eggers@telenet.be}Author Vitae ; Luc F. De Nil^c ; ^b ; ^{luc.denil@utoronto.ca}Author Vitae ; Bea R.H. Van den Bergh^d ; ^e ; ^f ; ^{Bea.vdnBergh@uvt.nl}Author Vitae
• 关键词：Stuttering ; Children ; Inhibitory control ; Temperament ; Executive control
• 刊名：Journal of Fluency Disorders
• 出版年：2013
• 出版时间：March, 2013
• 年：2013
• 卷：38
• 期：1
• 页码：1-13
• 全文大小：524 K

文摘

Purpose

The purpose of this study was to investigate whether previously reported parental questionnaire-based differences in inhibitory control (IC; ) would be supported by direct measurement of IC using a computer task.

Method

Participants were 30 children who stutter (CWS; mean age = 7;05 years) and 30 children who not stutter (CWNS; mean age = 7;05 years). Participants were matched on age and gender (¡À3 months). IC was assessed by the Go/NoGo task of the Amsterdam Neuropsychological Tasks ().

Results

Results indicated that CWS, compared to CWNS, (a) exhibited more false alarms and premature responses, (b) showed lower reaction times for false alarms, and (c) were less able to adapt their response style after experiencing response errors.

Conclusions

Our findings provide further support for the hypothesis that CWS and CWNS differ on IC. CWS, as a group, were lower in IC pointing toward a lowered ability to inhibit prepotent response tendencies. The findings were linked to previous IC-related studies and to emerging theoretical frameworks of stuttering development.
Educational objectives: The reader will be able to: (1) describe the concept of inhibitory control, and its functional significance; (2) describe the findings on self-regulatory processes, attentional processes, and inhibitory control in CWS; (3) identify which Go/NoGo task variables differentiated between CWS and CWNS; and (4) summarize the theoretical implications for the development of stuttering and the possible clinical implications.