Are there any open magnetic resonance imaging datasets of normal and healthy adults (as controls) and psychotic subjects?
Such as ADNI for Alzheimer's or OASIS for aging.
The Australian Schizophrenia Research Bank (http://www.schizophreniaresearch.org.au/bank/research-information/information-on-datasample-availability-for-researchers/) has an 'open' database of clinical MRI (T1s and DTI) as well as healthy controls. Access isn't free though - they charge an administration fee to cover costs. It is an ongoing effort and I think there is about 500 MRIs from patients in there now, but I'm not sure what the latest numbers are exactly.