Neuropsychology · 2021
Stronger impulse capture and impaired inhibition of prepotent action in children with ADHD performing a Simon task: An electromyographic study.
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Grandjean Aurélie, Suarez Isabel, Diaz Elisa, Spieser Laure, Burle Boris, Blaye Agnès, Casini Laurence
Аннотация
OBJECTIVE: A deficit in interference control is commonly reported in children with attention deficit hyperactivity disorder (ADHD). This has mainly been interpreted as a difficulty in inhibiting inappropriate responses. However, it could be due to at least two distinct and independent processes, which are often confounded: The activation or suppression of impulsive responses. The aim of the present study was to separate the contribution of these two processes.
METHOD: We compared performance of 26 children with ADHD to that of 26 nonADHD children using a novel approach based on electromyographic activity (EMG) analysis. EMG allows two distinct indices to be computed: Incorrect activation rate, which is an index of the intensity of impulse capture and correction rate, which provides a direct measure of the ability to suppress automatic responses.
RESULTS: Children with ADHD were slower, committed more errors, and had a larger interference effect than nonADHD children. Moreover, we observed a greater incorrect activation rate and a lower correction rate in the ADHD group.
CONCLUSIONS: Our data suggest that the difficulties in interference control found in children with ADHD are explained by both impaired inhibitory processes and a greater propensity to activate automatic responses. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
METHOD: We compared performance of 26 children with ADHD to that of 26 nonADHD children using a novel approach based on electromyographic activity (EMG) analysis. EMG allows two distinct indices to be computed: Incorrect activation rate, which is an index of the intensity of impulse capture and correction rate, which provides a direct measure of the ability to suppress automatic responses.
RESULTS: Children with ADHD were slower, committed more errors, and had a larger interference effect than nonADHD children. Moreover, we observed a greater incorrect activation rate and a lower correction rate in the ADHD group.
CONCLUSIONS: Our data suggest that the difficulties in interference control found in children with ADHD are explained by both impaired inhibitory processes and a greater propensity to activate automatic responses. (PsycInfo Database Record (c) 2021 APA, all rights reserved).