The persecutory type of delusional disorder, or also known as the paranoid sub-type disorder, is a physiological sub-type of disorder within the delusional disorder in which patients believe that they are being persecuted or harmed. Most patients however, are able to lead a good social life without any deterioration in their personality. However, their paranoia can cause disturbances within the community or the patient’s target. The scientific definition of the persecutory type is, “the delusion that involves the person's belief that he or she is being conspired against, cheated, spied on, followed, poisoned or drugged, maliciously maligned, harassed, or obstructed in the pursuit of long-term goals” .
The same delusions mentioned can cause patients take it to the extreme by appealing to the courts and other government agencies. Another important aspect of this type of delusion is that people get “systemized delusions”. This means that a person with a set of persecutory delusions will use day-to-day occurrences to make up her hypothesis of being harmed; for example, that he or she is being followed by government organizations
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