This stage included methamphetamine users (n = 991) from across Thailand (Table 1). Subjects were hospitalized for four months of residential drug treatment at PMNIDAT from 2007 to 2011 (Kalayasiri et al., 2014). This initial collection was focused primarily on the genetics of methamphetamine-induced paranoia. Exclusion criteria included including (i) life-time use of MA < 11 instances; (ii) history of primary psychotic disorders; and (iii) brain disease (epilepsy, stroke, or brain trauma).
