AMNESTIC DISORDER

classified in the DSM-IV-TR as a disruption in memory categorized by an incapacity to retain new data being introduced or to remember data once comprehended and stored in memory- a case which is serious enough that it significantly impedes performance in society or work and causes a great decrease in the degree of such in comparison to before. A differentiation is clearly drawn between the two as a result of an average medical state, substance-induced persisting amnestic disorder, and not alternatively mentioned. The very first of such can be due to many different problems, such as anoxia, posterior cerebral artery stroke, head trauma, and herpes-simplex encephalitis, leading to lesions in certain areas of the brain, such as the diencephalon and medial temporal lobe, as well as their relationships with a variety of other cortical regions. The condition is sometimes temporary, persisting only hours or a period of a few weeks.