“…Most of the studies of children with ADHD show atypical patterns of oxyHb more prominently in the right hemisphere during a variety of tasks such as the reverse-Stroop task (Yasumura et al, 2014), executive attention control task (Tsujimoto et al, 2013), verbal fluency task (VFT; Schecklmann et al, 2009), Go/NoGo task (Monden et al, 2012, 2015; Xiao et al, 2012; Nagashima et al, 2014a), oddball task (Nagashima et al, 2014b,c), passive viewing of facial expression (Ichikawa et al, 2014), and emotional prosody recognition (Köchel et al, 2015). These studies have revealed hypoactivation in the right frontal lobe including the prefrontal cortex (PFC; Xiao et al, 2012; Yasumura et al, 2014), middle frontal gyrus (MFG), and inferior frontal gyrus (IFG) (Monden et al, 2012, 2015; Nagashima et al, 2014a,b,c), presumably because NIRS probes can easily be applied to the frontal region (see Table 1).…”