Which of the following statements differentiates Obsessional idea from delusion:
Obsessions are considered senseless by the patient whereas patient has full belief in the delusions. For example, a patient who gets obsessive thoughts that "his hands are unclean" understands that his thought is not true and gets bothered by this repetitive thought whereas a patient with "delusion of infidelity" actually believes that his wife is cheating on him and continues to believes so irrespective of what others say.
Obsessional idea is not a conventional belief
Obsessional idea is held in spite of evidence to the contrary
Obsessional idea is regarded as senseless by patient
Obsessional idea is held on inadequate ground
Neurotic, Stress Related and Somatoform Disorders