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Transient global amnesia ( TGA) is a neurological disorder whose key defining characteristic is a temporary but almost total disruption of short-term memory with a range of problems accessing older memories. A person in a state of TGA exhibits no other signs of impaired cognitive functioning but recalls only the last few moments of ...
Transient global amnesia is a well-described medical and clinical phenomenon. This form of amnesia is distinct in that abnormalities in the hippocampus can sometimes be visualized using a special form of magnetic resonance imaging of the brain known as diffusion-weighted imaging (DWI). Symptoms typically last for less than a day and there is ...
Dissociative amnesia or psychogenic amnesia is a dissociative disorder "characterized by retrospectively reported memory gaps. These gaps involve an inability to recall personal information, usually of a traumatic or stressful nature." [ 1] In a change from the DSM-IV to the DSM-5, dissociative fugue is now subsumed under dissociative amnesia.
In neurology, retrograde amnesia ( RA) is the inability to access memories or information from before an injury or disease occurred. [ 1] RA differs from a similar condition called anterograde amnesia (AA), which is the inability to form new memories following injury or disease onset. [ 2] Although an individual can have both RA and AA at the ...
Post-traumatic amnesia. Post-traumatic amnesia ( PTA) is a state of confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is disoriented and unable to remember events that occur after the injury. [ 1] The person may be unable to state their name, where they are, and what time it is. [ 1]
Transient epileptic amnesia. Transient epileptic amnesia ( TEA) is a rare but probably underdiagnosed neurological condition which manifests as relatively brief and generally recurring episodes of amnesia caused by underlying temporal lobe epilepsy. [1]
sudden, unexpected travel away from home or one's customary place of work, with inability to recall one's past. confusion about personal identity, or the assumption of a new identity. significant distress or impairment. The Merck Manual [ 17] defines "dissociative fugue" as: One or more episodes of amnesia in which the inability to recall some ...
Dissociation is temporary escape from reality. It can be a healthy coping mechanism—unless it's sparked by trauma and left untreated. Dissociation is temporary escape from reality. It can be a ...