"Pattern separation" means the brain's ability to distinguish and separate similar information or experiences, so that they can be stored as distinct memories. Full definition
«Although running induces both substantial changes in number and morphology of young neurons as well as significant changes in learning behavior, this does not prove a causal relationship,» noted Professor Bischofberger, «Nevertheless, our results, together with previous findings, suggest that the enhanced pattern separation during memory testing is most likely mediated via running - induced increase in adult neurogenesis.» (sciencedaily.com)
«Our research indicates that exercise - induced increase in neurogenesis improves pattern separation by supporting unique and detailed long - term representations of similar but nevertheless different memory items. (sciencedaily.com)