Paper Summary:

Amnesia is the loss of the faculty of memory and one of the common forms of brain disorder. This paper explains that it is caused by any organic causes, like infections, psychological trauma, or physical injuries to the brain. Amnesia can either be associated with loss of recollection of the past or of the events that immediately follow the accident. The paper explains that, in the former case, it is called 'retrograde amnesia', while the later condition is referred to as 'anterograde amnesia'. Retrograde amnesia is, in general, viewed as a problem with recovering remote information, while anterograde amnesia represents problems with registering new information.

From the Paper:

"There are different types of amnesia like retrograde, anterograde, lacunar amnesia, transient global amnesia and hysterical amnesia. Among these retrograde and anterograde amnesia are the two most prevalent conditions. Amnesia can be caused by brain damage due to accidents or infectious diseases and the condition can be temporary or more lasting depending on the severity of the damage. In general amnesia due to organic causes are of more permanent nature. The DSM defines retrograde amnesia as the, "Loss of memory of events that occurred before the onset of the etiological condition or agent." [Scottsdale] In retrograde amnesia the amnesiac looses long-term memory and he cannot recollect events that happened prior to the trauma. Before going into detail about retrograde amnesia it is necessary to have a brief outlook on the mechanism of the brain function."

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