Error related negativity and multi-source interference task in children with attention deficit hyperactivity disorder-combined type La negatividad relacionada al error en una tarea de interferencia multifuente en niños con trastorno por déficit de atención-hiperactividad tipo combinado

Objective: To compare performance of children with attention deficit hyperactivity disorders-combined (ADHD-C) type with control children in multi-source interference task (MSIT) evaluated by means of error related negativity (ERN).Method:We studied 12 children with ADHD-C type with a median age of 7 years, control children were ageand gender-matched. Children performed MSIT and simultaneous recording of ERN. Results: We found no differences in MSIT parameters among groups. We found no differences in ERN variables between groups. We found a significant association of ERN amplitude with MSIT in children with ADHD-C type. Some correlation went in positive direction (frequency of hits and MSIT amplitude), and others in negative direction (frequency of errors and RT in MSIT). Conclusion: Children with ADHD-C type exhibited a significant association between ERN amplitude with MSIT. These results underline participation of a cingulofronto-parietal network and could help in the comprehension of pathophysiological mechanisms of ADHD.