“…As part of the limbic system, the CG is involved in executive function and shares numerous connections with prefrontal cortex and hippocampus (Bush, Luu, & Posner, 2000), two other regions significantly altered in schizophrenia (Gur, Keshavan, & Lawrie, 2007;Suzuki et al, 2005). Moreover, cognitive impairments linked with both of these structures, specifically executive function and working memory, are considered as putative endophenotypes and core features for schizophrenia Mohamed, Paulsen, O'Leary, Arndt, & Andreasen, 1999;Silver, Feldman, Bilker, & Gur, 2003;Snitz, Angus, MacDonald, & Carter, 2006). Increasing interest is given to identifying such potential endophenotypes, which represent important markers for the complex relationships between genes, brain and related cognitive functions.…”