 It appears that the abnormal fronto-parietal and fronto-striato- cerebellar networks in ADHD individuals seem to mediate the found defects in a broad range of timing tasks; indicating that ADHD can at least partly, be seen as a disorder of an abnormal temporal processing (Noreika et al., 2013).Individuals with ADHD have difficulties in discrimination activities and time estimation.It seems to them that time is passing by without them being able to complete tasks accurately.