Autobiographical amnesia

Functional amnesia for autobiographical memory is a rare but pathognomic sign of dissociative disorders. Psychological causes of autobiographical amnesia : A study of cases 1. Autobiographical memory is a cardinal feature of the human personality. Comprehensive neuropsychological testing, including the application.

Distinct features of the cases that.

Coinciding with the offset of infantile amnesia , the development of the sense of self becomes evident at about years of age. Transient epileptic amnesia (TEA) is a relatively recently delineated syndrome characterised by recurrent brief episodes of amnesia , typically associated with epileptiform discharges arising from the temporal lobes on standard or sleep deprived EEG. Patients with TEA often describe two other types of memory symptofirstly,. A case of retrograde amnesia , PJM, elucidated the relationship between self, episodic memory and autobiographical knowledge.

Only two case studies have directly addressed autobiographical memory in DID. Both provided evidence suggestive of dissociative amnesia. A specific autobiographical memory usually consists of at least one detailed memory of a personal experience (an episodic memory) and various associated items of knowledge.

The two patients with hippocampal formation lesions had moderately severe anterograde amnesia and limited retrograde amnesia for facts and events that affecte at most, the decade preceding the onset of amnesia. Content analysis could not distinguish the autobiographical recollections of the patients from the recollections of control subjects. Alternatively, autobiographical memory loss may result from subtle changes in the temporal lobe which gives rise to temporal lobe epilepsy and to memory problems. Patients who may be very similar on standard memory tests can differ markedly in their autobiographical memory performance.

The test assesses a subject’s recall of facts from their own past life. This process is experimental and the keywords may be updated as the learning algorithm improves. Retrograde amnesia refers to the loss of memory for information acquired before the onset of the cerebral pathology. Different profiles of retrograde amnesia have been identifie notably with regard to autobiographical memory, based on the locus of the lesion and the nature of the information being considere.

The loss of autobiographical memory associated with dissociative amnesia is also present in organic amnesia , the difference between the two types of amnesia is the cause. Dissociative amnesia has a psychological cause, and this cause can be difficult to find because of the memory loss itself. This type of damage can result from a traumatic injury, a serious illness, a seizure or stroke, or a degenerative brain disease. Memory loss showed a temporal gradient, but new learning was spared.

ECT-associated autobiographical amnesia is limited to specific per-sonal episodes, does not affect all patients and is reversible for some. Conducted experiments to assess autobiographical memory in normal Ss (mean age 5 yrs) and in memory-impaired patients (47–yrs old), all of whom had become amnesic on a known date. Some even start life over with new identities.

This article reports a review of focal retrograde amnesia (FRA), or the phenomenon of organically based severe memory loss restricted to retrograde, or pretraumatic, memory. Cases of FRA are classified according to the type of memory loss: episodic, semantic, or both. A few different clusters of the disorder were identified. Childhood amnesia - influence of language of memory development. The view that childhood amnesia is caused by the growth of language ability in the young child provides the structure and narrative schemas necessary to support episodic memories.

In this disorder, a person may lose personal memories and autobiographical information, but usually only briefly. Objective: To investigate ( a ) accelerated long term forgetting and ( b ) autobiographical memory in a group of patients with TEA. Amnesia typically from trauma to the medial temporal regions that coordinate activation among the disparate areas of cortex that represent the information that make up autobiographical memories.

The disorder involves the temporary loss of recall memory caused by disassociation, which may last for a period of seconds or years. Psychogenic amnesia or dissociative amnesia , is a memory disorder characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years.