We also observed a moderate correlation of MoCA with LAG, both for the entire cohort and for the PD and DLB subpopulations (Spearman ́s rho = 0.412, 95% CI = 0.167–0.609, p < 0.01; PD: Spearman ́s rho = 0.500, 95% CI = 0.087–0.767, p = 0.018; DLB: Spearman ́s rho = 0.349, 95% CI = 0.018–0.611, p = 0.034; Additional file 2: Figure S2A). Here, DOCK3 is linked to Lewy body dementia.