CLINICAL MEDICINE

Detailed explanation-1: -In the Diagnostic and Statistical Manual of Mental Disorders, a delusion is defined as: A false belief based on incorrect inference about external reality that is firmly sustained despite what almost everybody else believes and despite what constitutes incontrovertible and obvious proof or evidence to the contrary.

Detailed explanation-2: -A delusion is a fixed false belief based on an inaccurate interpretation of an external reality despite evidence to the contrary. The belief is not congruent with one’s culture or subculture, and almost everyone else knows it to be false.[1]

Detailed explanation-3: -A delusion is a false fixed belief that is not amenable to change in light of conflicting evidence.

Detailed explanation-4: -Types of delusions include persecutory, erotomanic, grandiose, jealous, somatic, and mixed/unspecific.

Detailed explanation-5: -non-bizarre delusions: involve situations that are possible, such as being manipulated or harmed, but remain fixed false beliefs even after proven false.