PATRICK McGorry’s model of early diagnosis of psychosis, favoured by the federal government and the Coalition in their mental-health policies, has come under attack from a leading US psychiatrist, who warns that predicting psychosis is unreliable and could lead to patients being wrongly medicated.

Allen Frances, who chaired the committee that produced the current diagnostic bible for psychiatry, the DSM-IV, has warned that Professor McGorry’s Early Psychosis Intervention Centres do not have a reliable early diagnosis tool.

Professor Frances, an emeritus professor at Duke University in North Carolina, fears early diagnosis could lead to people without psychosis being put on medications that have serious side-effects, including massive weight gain.

He has also attacked the Gillard government’s plans to spend $222 million expanding Professor McGorry’s EPIC program by another 16 centres as a “vast untried public-health experiment”.