PSYCHOSIS
Psychosis is a generic psychiatric term for odd behavior that doesn’t align with reality. They often have trouble separating reality from things that aren’t real. Hallucinations are a great example of a psychotic symptom -- they can’t distinguish real sensory perceptions from false ones. Psychosis is often described as a “disorganized” pattern of speech, thought or behavior -- disorganized is a pretty meaningless term, but in this case, I think it accurately captures the wide spectrum of “odd” behaviors that fall into the psychosis universe. Psychosis can be a component of MANY different psychiatric illnesses, but the classic psychotic disease is Schizophrenia.
Brief Psychotic Disorder, Schizophreniform and Schizophrenia have the same symptoms. The difference is the TIMING.