The symptoms may be associated with head trauma, cerebrovascular disease, cerebral neoplastic disease, cerebral anoxia, herpes simplex encephalitis, poorly controlled insulin-dependent diabetes, and surgical intervention to the brain transient amnestic syndromes can also occur from epileptic seizures, electroconvulsive therapy, severe migraine, and drug overdose.
The DSM-V identifies the following categories as etiologies for the syndrome of symptoms known as amnestic disorders: In general, amnestic disorders are caused by structural or chemical damage to parts of the brain. Amnestic disorders can occur in isolation, but in practice, they are most commonly seen within the more global syndromes of delirium or dementia.Infantile amnesia is a common phenomenon wherein most people can’t remember the first three to five years of life.Transient global amnesia occurs with confusion or agitation that comes and goes repeatedly over the course of several hours.Anterograde amnesia refers to an inability to acquire new information or experiences occurring during the period of impairment.
Retrograde amnesia refers to a loss of memory for events before the onset of lesion or condition.
Amnesia refers to a specific deficit in new learning and memory.Amnestic disorders are characterized by an inability to learn new information (short-term memory deficit) despite normal attention and an inability to recall previously learned information (long-term memory deficit).
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