H). NEUROTIC DISORDER (Phobia, anxiety disorders, obsessive compulsive disorders, depressive neurosis, conversion disorders, dissociative reaction, psychosomatic disorders, post traumatic stress disorder.) PHOBIA *Definition: Phobia is an anxiety disorder. An unprovoked fear of any person, thing or a situation and activity is called a phobia. CAUSES OF PHOBIA (Causes of Phobia) *Genetics and environmental factors can cause phobias. *Caused by failure of defense mechanism Usually, phobias occur when repression and substitution