<prompt> An anxiety reaction in which the mind is preoccupied with ceain thoughts and ideas that cannot be driven away isImpulsePhobiaObsessionConfabulation  <response>: Obsession This is an anxiety reaction in which the mind is preoccupied with ceain thoughts and ideas that cannot be driven away Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 360 