We found that PARK2 mice had significantly lower spontaneous alternation percentage in the Y-maze test (53.1 ± 0.95 SEM) compared to Wt mice (60.82 ± 1.37 SEM, p = 0.0001) (Fig. 5f), which pointed toward memory impairment due to the PARK2 mutation. Here, PRKN is linked to memory impairment.