Characteristic amnesia of post traumatic brain injury

Anterograde amnesia is characteristically seen in post traumatic brain injury Amnesia following head injuries is common and mostly associated with concussion. Concussion : due to head injury a state of temporary unconsciousness which comes on immediately after injury, is always followed by amnesia and recovers spontaneously The memory of distant events returns before the memory of recent events. Post-traumatic amnesia can range from minutes to days, and its duration is propoional to the severity of the injury Permanent retrograde amnesia can vary from a time of seconds up to seven days Retrograde amnesia can also occur in injuries in which consciousness is not lost.