Amnesia Research
Amnesia is the loss of memory for an indefinite period of time. This is usually caused by a hard blow to the head from a mild concussion that would create amnesia for a short time or to a severe injury to the brain that could cause a loss in memory for life. In some instances the memory loss will disappear in a short time without any treatment and at other times it could be for a longer period with no apparent differences. There are other types of amnesia that occur that have no connection with an external blow to the head, which are listed below.
Transient global amnesia is a condition in which an unexpected severe attack of memory loss and loss of orientation for time, place and other people. This may be caused by blockage of small arteries in the brain. The attacks could last for a few minutes or a few hours and could be only once for some people or it could recur. This type of amnesia could occur from an overdose of drugs or from alcohol consumption in significant amounts that cause the person to pass out. After the attack, the person usually has complete recovery.
Wernicke-Korsakoff syndrome is similar to transient global amnesia but is much more severe and consists of two disorders. This is caused by a large consumption of alcohol over a lengthy period with no food. This causes a thiamin deficiency which is a vitamin that the brain must have to function. Bernice’s is a severe condition that should be under a doctor's care because if not treated it could be fatal.
Korsakoff 's amnesia may become permanent if repeated or severe attacks continue.
