[1] Westmead Hosp, Brain Dynam Ctr, Westmead Millennium Inst, Westmead, NSW 2145, Australia
[2] Univ Sydney, Div Psychol Med, Western Clin Sch, Camperdown, NSW, Australia
[3] Neurosci Inst Schizophrenia & Allied Disorders, Darlinghurst, NSW, Australia
[4] Westmead Hosp, MRI Unit, Dept Radiol, Westmead, NSW 2145, Australia
[5] Univ New S Wales, Sch Psychol, Kensington, NSW 2033, Australia