LA ATENCIÓN Y EL SACÁDICO: EFECTOS CLÍNICOS EN EL TRASTORNO POR DÉFICIT DE ATENCIÓN CON HIPERACTIVIDAD (TDAH).

Attention Deficit and Hyperactivity Disorder (ADHD) is a prevalent childhood disorder, which is associated to response inhibition deficits. The main aim of this study is to analyze the eye saccadic movements as a measure of inhibitory control in ADHD, using Fixation and Antisaccade tasks. 4 children and adolescents took part in the study (2 ADHD and 2 controls), aged 7 and 16. Eye movements' assessment was completed by the administration of response inhibition and attention deficit measures. Main results indicated: a) ADHD group showed a significant higher number of mistakes in saccadic tasks (intrusive saccadic in the Fixation task and direction mistakes in the Antisaccade task); b) the 16 years old participant with ADHD showed less mistakes than the 7 years old children. Additionally, and in contrast to this second participant, he was able to correct practically all of them; c) high coherence between saccadic tasks and response inhibition and attention deficit was found, where high levels of saccadic movements' mistakes were related to low attention and high impulsivity levels. These results highlight about the validity and usefulness of the saccadic eye movements as a measure of the inhibitory deficit in ADHD. [ABSTRACT FROM AUTHOR]