<prompt> Abnormal thought possession is found inOrganic brain syndromeHysteriaObsessive compulsive disorderNeuroasthenia  <response>: Normally one experiences ones thinking as being ones own, although this sense of personal possession is never in the foreground of ones consciousness. One also has the feeling that one is in control of ones thinking. This loss of control is seen in obsessions. Ref- Fish psychopathology, 3e, pg 36. 