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All about amnesia types of amnesia anterograde amnesia retrograde amnesia dissociative amnesia infantile amnesia causes of amnesia symptoms of amnesia diagnosis of amnesia treatment for amnesia prevention of amnesia

What types of amnesia are there?

Anterograde amnesia. This form of amnesia follows brain trauma and is characterized by the inability to remember new information. Recent experiences and short-term memory disappear, but victims can recall events prior to the trauma with clarity.

Retrograde amnesia. In some ways, this form of amnesia is the opposite of anterograde amnesia: the victim can recall events that occurred after a trauma, but cannot remember previously familiar information or the events preceding the trauma.

Transient global amnesia. A temporary loss of all memory, but it particularly affects the ability to form new memories (severe anterograde amnesia), with milder loss of past memories (retrograde amnesia) going back a few hours. It is rare and is most common among older persons with vascular disease.

Traumatic amnesia. Traumatic amnesia is caused by brain damage from a hard blow to the head, such as in a car accident. It can lead to anything from a brief loss of consciousness to coma. Traumatic amnesia is often transient, the duration of the amnesia is related to the degree of injury and may give an indication of the prognosis for recovery of other functions.

Wernike-Korsakoff's psychosis. Wernike-Korsakoff's psychosis is memory loss caused by extended alcohol abuse. This tends to be a progressive disorder and is usually accompanied by neurological problems, such as uncoordinated movements and loss of feeling in the fingers and toes.

Hysterical (fugue) amnesia. Hysterical (fugue) amnesia is usually triggered by a traumatic event that the person's mind is unable to properly handle. Usually, the memory slowly or suddenly returns a few days later, although memory of the trauma itself may remain incomplete.

Infantile/childhood amnesia. Infantile/childhood amnesia refers to a person's inability to recall events from early childhood. Some say this type of amnesia could be linked to language development or the fact that some areas of the brain linked to memory were not fully mature.

Posthypnotic amnesia is where events during hypnosis are forgotten, or where past memories are unable to be recalled.

More information on amnesia

What is amnesia? - Amnesia is a profound memory loss which is usually caused either by physical injury to the brain or by the ingestion of a toxic substance which affects the brain.
What types of amnesia are there? - Types of amnesia inclue anterograde amnesia, retrograde amnesia, transient global amnesia, traumatic amnesia, wernike-Korsakoff's psychosis.
What is anterograde amnesia? - Anterograde amnesia is a form of amnesia where new events are not transferred to long-term memory. Anterograde amnesia is a deficit in learning subsequent to the onset of the disorder.
What's retrograde amnesia? - Retrograde amnesia is a form of amnesia where someone will be unable to recall events that occurred before the onset of amnesia.
What is dissociative amnesia? - Dissociative amnesia is characterized by a blocking out of critical personal information, usually of a traumatic or stressful nature.
What is infantile amnesia? - Infantile/childhood amnesia refers to a person's inability to recall events from early childhood. Infantile amnesia could be linked to language development.
What causes amnesia? - Amnesia has several root causes. Amnesia is usually caused either by physical injury to the brain or by the ingestion of a toxic substance which affects the brain.
What're the symptoms of amnesia? - People with amnesia have difficulty learning new information, and they have difficulty recalling previously learned information.
How is amnesia diagnosed? - In diagnosing amnesia and its cause, psychological exams may be ordered to determine the extent of amnesia and the memory system affected.
What is the treatment for amnesia? - Treatment of amnesia depends on the root cause of amnesia and is handled on an individual basis. Psychotherapy can be helpful for amnesia caused by emotional trauma.
How to prevent amnesia? - Amnesia is only preventable in so far as brain injury can be prevented or minimized. Brain infections should be treated swiftly and aggressively.
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