Comparisons of impulsivity scores between LR and HR groups are shown in Fig. 7. Overall, in the total sample, the HR offspring displayed significantly increased impulsivity on each of the scores: non-planning (F = 26.47; p < 0.0001), motor (F = 34.21; p < 0.0001), attentional (F = 28.47; p < 0.0001), and total (F = 45.44; p < 0.0001). Specifically, younger HR males exhibited significantly higher impulsivity in non-planning (F = 6.87; p = 0.0091), motor (F = 15.01; p = 0.0001), attentional (F = 5.35; p = 0.0213), and total impulsivity (F = 13.64; p = 0.0003) than their LR counterparts. On the other hand, older HR males showed increased impulsivity only in motor (F = 5.44; p = 0.0202) and total impulsivity (F = 5.56; p = 0.0188) compared to older LR males. Among females, younger HR offspring had significantly higher impulsivity on all the scores than the LR subjects: non-planning (F = 13.36; p = 0.0003), motor (F = 16.21; p = 0.0001), attentional (F = 28.49; p < 0.0000), and total impulsivity (F = 27.80;
