![]() The affected person can usually remember older memories, more so than newer ones, as older memories are ingrained in the brain over time. ![]() In extreme cases, however, a person may even forget who they are. It is usually temporary, but may be permanent in certain cases. It occurs due to damage to the brain, but not the hippocampus, as that part of the brain is responsible for forming new memories, or it can be caused by psychological trauma or stress. One of the most common forms depicted in movies, this variety involves the loss of memory of past events. Amnesia includes frank pathologies encountered in neurological and psychiatric clinics, such as the amnesic syndrome, Alzheimers disease (AD), traumatic. Apart from this, certain therapies, such as electroconvulsive therapy, can also cause some forms of amnesia. However, a brief understanding of semantic and procedural memory will be helpful in understanding these various forms.Īmnesia can occur due to physical trauma to the head, psychological or emotional trauma, anoxia, substance abuse or diseases like Alzheimer’s. However, there are many other forms too, which may not be as popular or common. The most common forms of amnesia depicted in most works of fiction are retrograde and anterograde amnesia. ![]() It may or may not be a permanent state, depending on the cause. Any problem in the normal process of the formation of new memories, their conversion from short-term to long-term storage, or their retrieval can result in such memory loss. Amnesia is the loss of memory, or the inability to retrieve it.
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