greater number of short intra-connections within local sub-networks and relatively fewer inter-connections between sub-networks. A variety of neurological and psychiatric diseases alter connectivity within brain networks (Catani and ffytche, 2005). Graph theory has been utilized to delineate functional and structural network alterations in neurologic disorders such as Alzheimer's disease (He et al., 2008; Stam et al., 2007a, 2009; Supekar et al., 2008), and psychiatric disorders such as schizophrenia (Alexander-Bloch et al., 2012; Fornito et al., 2012; Lynall et al., 2010; van den Heuvel et al., 2010).
