Also there's huge overlap in symptoms between bipolar I with psychosis, schizoaffective disorder, and schizophrenia. People sometimes move around between these diagnoses throughout treatment, different doctors have different opinions, patient behavior changes, etc.
I personally think these symptoms come about through many different causes and the labels are somewhat inadequate. They capture a symptom profile rather than a full understanding.
I'm a non expert but I believe some people are starting to see it that way. See: https://www.google.com/search?q=schizophrenia+spectrum+disor...
Also there's huge overlap in symptoms between bipolar I with psychosis, schizoaffective disorder, and schizophrenia. People sometimes move around between these diagnoses throughout treatment, different doctors have different opinions, patient behavior changes, etc.
I personally think these symptoms come about through many different causes and the labels are somewhat inadequate. They capture a symptom profile rather than a full understanding.