“…How do aHC and pHC changes relate to episodic memory performance? Volumetric studies have yielded mixed results (Van Petten, 2004), but there are indications in favor of longitudinal compared to cross-sectional relationships (Fjell, McEvoy, et al, 2013; Gorbach et al, 2017; Tamnes et al, 2014), and that correlations may be stronger in certain hippocampal regions (Carr et al, 2017; Daugherty et al, 2017; DeMaster et al, 2014; Hackert et al, 2002; Nordin, Herlitz, Larsson, & Soderlund, 2017; Valdes Hernandez et al, 2017), reflecting specific parts of the memory process (Nadel et al, 2012; Poppenk et al, 2013; Poppenk & Moscovitch, 2011). In addition, relationships may be different in development vs. adulthood and aging (DeMaster et al, 2014).…”