Symptoms
Patients with utilization behavior feel they are functioning normally and do not believe that their actions are anything out of the ordinary. Sufferers are unable to resist grasping or using an object placed in front of them, regardless of the context or environment. It is not known what triggers them to exhibit UB with certain external 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. AHS can involve damage to the anterior cingulate 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.
Read more about this topic: Utilization Behavior
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