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delusional system
delusional system A delusional system is a fixed, lasting pattern of false beliefs, such as feeling persecuted or believing a partner is unfaithful, that does not change despite evidence.
A delusional system is a fixed, lasting pattern of false beliefs, such as feeling persecuted or believing a partner is unfaithful, that does not change despite evidence. It can develop gradually while a person otherwise keeps clear, organized thinking, with emotions and behavior fitting the delusional beliefs.