“…Sex differences in cognitive function have been largely discussed in the literature (Agneta & Johanna, 2009; Barnes et al, 2003; De Vries, 2004; Finkel, Reynolds, Berg, & Pedersen, 2006; McCarrey, An, Kitner-Triolo, Ferrucci, & Resnick, 2016; Miller & Halpern, 2014), although it is not yet clear whether these differences generalize to the oldest old (Hassing, Wahlin, & Bäckman, 1998) and whether they exist for all or only for some cognitive abilities. Particularly, sex differences in level and rate of change of visuospatial abilities have been questioned (Mitolo et al, 2015; Palmiero, Nori, Rogolino, D’amico, & Piccardi, 2016; Voyer, Voyer, & Bryden, 1995; Waschl, Nettelbeck, Jackson, & Burns, 2016).…”