Key directions for future investigations using this model include assessments of long-term object recognition user longer, e.g., 24 h delay periods, evaluation of additional at-risk behavioral domains including executive function and exploration of potential face validity of Pink1–/– rats for the sex differences that characterize the incidence and severity of mild cognitive impairments in PD (Janvin et al., 2006; Cereda et al., 2016; Liu et al., 2017; Cholerton et al., 2018; Oltra et al., 2021). This evidence concerns the gene PINK1 and Cognitive impairment.