Utilization behavior: Difference between revisions

Revision as of 10:11, 12 May 2011

Revision as of 05:31, 6 September 2011

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==Symptoms==

A patientPatients with utilization behavior doesfeel not believe that his actionsthey are anything out of the ordinary. He feels he is functioning normally and technicallydo yesnot hebelieve is,that withtheir theactions exceptionare ofanything functioningout atof the inopportune timeordinary. Patients have claimed that theySufferers are not ableunable to holdresist backgrasping andor suppressusing thean urges to grasp theobject objectsplaced in front of them., Theyregardless experienceof anthe irresistiblecontext or impulse to use the objectsenvironment. It is not known what triggers the patientthem to exhibit UB with certain external [[Stimulus (physiology)|stimuli]] and not others.

A disorder related to UB consists of the feeling that a body part is separate from the rest of the body and has a mind of its own. The patient does not recognize the limb as one that he/she owns and believes it to be a foreign object which he cannot control. This set of symptoms is related to [[Alien hand syndrome]] (AHS), a neurological disorder in which the subject does not acknowledge ownership of a limb when visual cues are lacking.<ref name="Espinosa">Espinosa, P., Smith, C., Berger, J. (2006). Alien hand syndrome. Neurology, 67(12), E21.</ref> AHS can involve damage to the [[anterior cingulated gyrus]], the [[medial prefrontal cortex]] and the anterior [[corpus callosum]] when a patient has frontal AHS. The other type of AHS, Callosal AHS, is due to an anterior callosal lesion and affects dominant hemisphere control.

Many sufferers demonstrate the inability to prevent grasping something present in front of them. The urges of using objects in their field of view are too great to avoid no matter where the action is taking place.

==Causes==