On being sane in insane places (david l. rosenhan) What is viewed as normal in one culture may be seen as aberrant in another culture. Anxiety, depression, murder, hallucinations, psychological suffering exists and are deviant. But normality and abnormality, sanity and insanity, and the diagnoses that flow from them may be less substantive than many believe them to be. American psychiatric association: believes that people show symptoms that can be categorized that the sane are distinguishable from the insane. However, this belief has been questioned; and based on various considerations, this psychological categorization is useless! The observers" diagnosis are not valid summaries of characteristics displayed by the observed. The rosenhan experiment is a well-known experiment examining the validity of psychiatric diagnosis. The experiment was broken down into two parts: eight pseudopatients (three women and five men) feigned auditory hallucinations in order to gain admission into twelve different psychiatric hospitals.