Delusions
A delusion is essentially an erroneous belief that is fixed and firmly held despite clear contradictory evidence, or false firm belief. It is derived from a Latin word ludere, which means to play. It mostly occur due to underlying psychological and neurological disorders. Delusions are largely characterized under four subheads, as follow:
a) Grandiose type or delusion of Grandeur: it is characterized by fantastical beliefs that one is famous, omnipotent or very powerful. The grandeur of delusion sometime be associated with megalomania.
b) Delusion of Jealousy: False belief that spouse or lover is having an affair, with practically no evidence to back up their claim.
c) Persecutory delusion: Persecutory delusions are most prevalent type of delusion and involve the theme of being harassed, attacked or otherwise obstructed in goal pursuit.
d) Eratomanic type or eratomania: False belief that other person is in love with them and they involve in sexual activities or in spiritual romance.
Delusion often requires psychotherapy in combination with drugs like antipsychotics, antidepressant and anxiolytes.