In 1973, Stanford psychologist David Rosenhan published a bombshell paper called “On Being Sane in Insane Places.” In the paper, Rosenhan described faking symptoms to be admitted to a psychiatric hospital, and recruiting several other pseudo patients to do the same. Could staff tell they were faking? What was it like to be a patient in an institution? The “Rosenhan experiment,” as it came to be known, created a major stir, sparking public debates over the validity of psychiatric diagnoses and contributing to a shift away from institutionalization. Decades later, when journalist Susannah Cahalan began looking into the experiment, she made a startling discovery about Rosenhan’s famous research; he had made up most of it.

On this episode, we explore what happens when long-held narratives are upended. For the first time, we hear the voices of the pseudo patients who participated in the famous study, and find out why Cahalan was so passionate about finding them. We’ll also hear a story about one woman’s decades-long search to investigate the Oklahoma City bombing that killed her two grandsons.

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