Amnesia is a disease caused by brain trauma. It is mainly divided into psychogenic amnesia and dissociative amnesia. Amnesia is mainly characterized by the destruction of consciousness, memory, identity, or the normal integration of the environment, thus causing trouble in life, but these symptoms cannot be explained by physiological factors. Patients often do not know who they are, or often feel that there are many "me's".
Amnesia is a disease in which memory is confused. To put it simply, it is a loss of memory. The causes of amnesia can be either organic or functional. Organic causes include trauma or disease to the brain, or the use of certain (usually sedative) drugs. Functional causes are psychological factors, such as psychological defense mechanisms. An example of this is hysterical post-traumatic amnesia. Amnesia can also be spontaneous, as well as transient and complete amnesia. This general type of amnesia is more common in middle-aged people, especially men, and usually lasts less than 24 hours.
Another effect of amnesia is the inability to envision the future. A recent study published online in the Proceedings of the National Academy of Sciences shows that amnesiac patients with damage to their hippocampus are unable to imagine the future. This is because when a normal person imagines the future, they use their past experiences to construct a possible scenario. For example, a person trying to imagine what will happen at a future gathering will draw on past experiences in various ways to help frame the situation at that subsequent gathering.
1. According to the cause, it is mainly divided into psychogenic amnesia and dissociative amnesia
(1) Psychogenic amnesia ① Patients lose memory of past experiences, amnesia phenomenon It is caused by psychological reasons. ②The memory lost by patients is sometimes limited to the inability to remember things during a certain period of time, that is, they only remember old things and forget the present. ③Some of the memory lost by patients is limited to important things. This situation is called "episodic amnesia".
④The memory lost by patients sometimes occurs suddenly after suffering a painful blow. After a period of time, the memory may be restored.
(2) Dissociative amnesia Dissociative amnesia is considered to be the most common dissociative disorder. The most common form of this disease is amnesia for personal identity, but the memory for general information is intact. of. In fact, of all dissociative disorders, memory loss is the most common symptom. Dissociative amnesia affects more women than men and more young adults than older adults. The onset of amnesia in this type of case is usually sudden, and the patient will be unable to recall his or her previous life or personality, and mainly loses memories of the past, especially traumatic life events.
Patients with this disease usually have more than two personalities. At different times, one personality will become the main personality, and each other will be ignored. When one personality appears, the other disappears. The two personalities have their own memories, emotions, behavior patterns, attitudes, etc., and they are usually very different, as if two souls live in the same body.
2. According to the length of amnesia content
it is divided into temporary amnesia and permanent amnesia.
(1) Temporary amnesia ① Temporary amnesia is caused by the brain being violently impacted by the outside world, causing hemocephalus, and the blood clots suppress some memory nerves, leading to amnesia. Once the bleeding is released after surgery, the memory will be restored. ②Temporary amnesia usually occurs when people suffer from severe social and psychological pressure, and their personal consciousness, identity or behavioral coordination suddenly and temporarily changes, which can easily lead to physical and mental collapse. If the consciousness changes, important personal events cannot be remembered. , psychogenic amnesia occurs. If you are too stressed, you may temporarily lose your memory. For example, when performing on stage and suddenly forgetting lyrics or lines, this is also temporary amnesia. It’s almost the same as the second temporary amnesia.
(2) Permanent amnesia is the loss of human memory, just like the disappearance of computer memory data and cannot be found back.