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Blanket term for the most severe form of thought disorder; psychotic patients appear to the outsider to have lost contact with logical reality. Symptoms can include hallucinations, personality changes, delusions, and disorganized thought and/or behavior.

Example: The patient has lost the ability to distinguish fantasy from reality. Judgment is grossly impaired, logic is disregarded, and activities of daily living are difficult, if not impossible, to accomplish.

APA Reference
Grinnell, R. (2018). Psychosis. Psych Central. Retrieved on July 14, 2020, from