Study limitations and future directions
heterogenous, ADHD
DYSFUNCTION
Despite its strengths, our study has several limitations that should be noted. First, although the sample size was reasonable compared to previous studies in this field [Another limitation is that the relatively mild severity profile of symptoms and executive dysfunction in our sample may not be representative of more severe cases. Future studies should include a more heterogenous and a larger sample, with extended stimulation protocols that may be individually tailored to each child’s clinical profile. Such individually-tailored approach should consider several factors, including ADHD subtype and the time of day in which stimulation is given, which should match the child’s chronotypical profile [