The Ventral Stratium is positivly corrlated with effort, and thus it is sought to be involved in [[motivation]]<ref>[http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001266 Mechanisms Underlying Motivation of Mental Versus Physical Effort. PLoS Biology, 2012; 10 (2): e1001266 DOI: 10.1371/journal.pbio.1001266.](for breif review read on [http://www.sciencedaily.com/releases/2012/02/120222133431.htm ScienceDaily])</ref>