Non-psychotic delusions and hallucinations makes no sense

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I don't understand what Non-psychotic delusion mean, because Delusional Disorder is a form of psychotic disorder. I am concerned that this article is misleading and downplaying the delusions that people with ASD more likely to experience.


https://pubmed.ncbi.nlm.nih.gov/26995851/



https://dlisv03.media.osaka-cu.ac.jp/co ... 1-2-73.pdf


The study is from Japan, they use different language, but this "non-psychotic hallucinations or delusions are more common than hallucinations or delusions that arise from actual psychotic disorders" is very misleading, because delusions and hallucinations are symptom of psychosis.

Non-psychotic delusions are delusional beliefs that are plausible but inaccurate. Eg a delusional belief that your significant other is cheating on you. It's something that could plausibly be true, but the person believes it as a fixed belief despite no evidence for it and evidence against it.

Psychotic delusions are implausible. Eg a delusional belief that you've been kidnapped by aliens in your sleep who implanted a brain implant that's controlling your actions. It's uncertain if sentient aliens even exist, very unlikely that they've even so much as visited our solar system, and pretty much certain that they can't possibly be kidnapping and returning humans to Earth without human technology detecting them.

Psychotic delusions are exclusive to psychotic disorders, they're part of the definition of psychosis. Non-psychotic delusions can occur in both psychotic disorders and other mental health conditions.

That makes more sense, it's just that Delusional Disorder is part of Schizophrenia Spectrum and Other Psychotic Disorders. Thank you for explaining.