APOE and Lewy body dementia: Specific brain regions crucial for cognition also showed more significant structural and functional alterations in DLB APOE4 carriers between some of the studies reviewed (Maetzler et al., 2008; Gomperts et al., 2012; Vijayaraghavan et al., 2014; Ferreira et al., 2020; Jung et al., 2021; Diaz-Galvan et al., 2023).