“…This ratio will follow the same tendency as the ex-Gaussian skewness (c 1 = 2s 3 ∕ S 3 ). It has been described as a perceptual portion of an RT (Hohle, 1965), a decision component (Luce, 1986) and more recently, related to attentional factors, a defective effort control mechanism or attentional lapses (Gu, Gau, Tzang & Hsu, 2013;Moreno-Cid et al, 2015;Moret-Tatay et al, 2014;Moret-Tatay et al, 2016). In particular, Leth-Steensen, Elbaz & Douglas (2000) did find main differences in the s parameter, not in r or l, while comparing ADHD children to their age-matched control counterparts.…”