Programmes to destigmatise 'mental illness' have traditionally been based on the 'mental illness is an illness like any other' metaphor and have been largely unsuccessful. By measuring attitudes towards, and etiology beliefs about, 'mental illness' before and after a series of four undergraduate lectures presenting the psychosocial causes of, and solutions to, severe mental health problems, this study (a) replicated previous studies demonstrating a relationship between biogenetic causal beliefs and negative attitudes towards 'mental patients'; (b) found that following the lectures attitudes improved, particularly around the key variables of dangerousness and unpredictability; and (c) demonstrated that amount of contact with people who had received psychiatric treatment was an even stronger predictor of positive attitudes than acceptance of a psychosocial perspective.