In search of features that constitute an “enriched environment” in humans: Associations between geographical properties and brain structure - Kühn, Simone; Düzel, Sandra; Eibich, Peter; Krekel, Christian; Wüstemann, Henry; Kolbe, Jens; Martensson, Johan; Goebel, Jan; Gallinat, Jürgen; Wagner, Gert G; others (Scientific reports, 2017)