The article highlights the study conducted by Aetiology and Ethnicity in Schizophrenia and Other Psychoses (AESOP) on the perceptions of ethnicity and psychosis in Great Britain. According to the author, the study shows that the levels of psychosis is higher in African-Caribbean and black African people living in Great Britain than with the white British population. He added that the study shows that people's perception of disadvantage is the reason of the high level of mental illness