![]() It is possible for Retrograde Memory impairment to occur without impairment of anterograde abilities, but this is relatively unusual. Usually the Anterograde Memory impairment is a more prominent feature having a more obvious impact on day-to-day functioning and behaviour. It is very common for the person with retrograde amnesia to also have Anterograde Memory impairment. This is traumatic and distressing for the individual with brain injury, but is also highly distressing for relatives and friends – some of whom may not even be remembered by the person. They may lose some previously learned skills and knowledge, additionally, important personal information may be lost. Most patients with functional amnesia presented with retrograde memory impairments involving the episodic memory domain. Unlike with anterograde amnesia where there is an inability to form new memories, retrograde amnesia allows for very specific information to be forgotten- a single event, for example. Severe Retrograde Memory impairment can be life changing the person perhaps being unable to recall significant life events, where they live, what they did for a living, what made them who they are. The difference between retrograde amnesia and anterograde amnesia. The severity of Retrograde Memory impairment is related to the location and severity of brain injury. Retrograde amnesia (RA) refers to the loss of information that was acquired before the onset of amnesia. ![]() For other people, the memory loss may be more severe, from months to decades. Anterograde amnesia (AA) refers to an impaired capacity for new learning. ![]() Until the early 2000s, the most widely followed concussion management guidelines relied heavily on loss of consciousness (LOC) and PTA to determine the severity, or 'grade,' of a concussion and return to play. they do not remember the events immediately preceding the injury. Whether amnesia predicts a more severe concussion and longer recovery is unclear. Some people will experience Retrograde Memory impairment for a few hours or days prior to the injury i.e. Retrograde Memory impairment refers to the loss of memories a person has laid down prior to their brain injury.
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