What is Psychosis? Look at the DSM, Common Mimics, and a Framework for the Differential

What does “psychosis” actually mean, and how do clinicians recognize it in practice? In this episode, we define psychosis as a syndrome (not a single diagnosis) and walk through the core symptom domains: delusions, hallucinations, disorganized thinking/speech, disorganized behavior, and negative symptoms. We focus on the differential diagnosis, including how to distinguish schizophrenia-spectrum and schizoaffective disorders from mood disorders with psychotic features, trauma-related phenomena, borderline personality disorder, neurodevelopmental presentations (including autism spectrum traits), and substance-induced psychosis. We share red flags that can be easy to miss, like new-onset suspiciousness, functional decline, social withdrawal, and subtle thought disorganization, and we emphasize the value of collateral history and longitudinal follow-up. We close with treatment implications: when antipsychotics are helpful, why risks and benefits need to be individualized, and when psychotherapy and supportive interventions are the better first move. Educational disclaimer: This episode is for educational purposes only and is not medical advice.
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