Delusion
A delusion is a fixed belief that is not amenable to change in light of conflicting evidence. As a pathology, it is distinct from a belief based on false or incomplete information, confabulation, dogma, illusion, or some other misleading effects of perception as individuals with these beliefs "are" able to change or readjust their beliefs upon viewing the evidence for these beliefs.

Delusions have been found to occur in the context of many pathological states (both general physical and mental) and are of particular diagnostic importance in psychotic disorders including schizophrenia, paraphrenia, manic episodes of bipolar disorder, and psychotic depression.
Q1082351
confabulation
Concept
Q620749
dogma
Concept
Q182593
illusion
Concept
Q160402
perception
Concept
Q170082
psychotic
Concept
Q41112
schizophrenia
Concept
Q2476251
paraphrenia
Concept
Q185935
manic
Concept
Q131755
bipolar disorder
Concept
Q2914583
psychotic depression
Concept
Q189643
Delusion
Concept
has cause
subclass of
subclass of
symptoms and signs