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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 ...
Specialty. Psychiatry, neurology. Amnesia. Amnesia is a deficit in memory caused by brain damage or brain diseases, [ 1] but it can also be temporarily caused by the use of various sedative and hypnotic drugs. The memory can be either wholly or partially lost due to the extent of damage that is caused. [ 2]
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.
Specialty. Psychiatry, neurology, neuropsychology. 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 ...
Drug-induced amnesia is amnesia caused by drugs. Amnesia may be therapeutic for medical treatment or for medical procedures, or it may be a side-effect of a drug, such as alcohol, or certain medications for psychiatric disorders, such as benzodiazepines. [ 1] It is seen also with slow acting parenteral general anaesthetics. [citation needed]
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 ...
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 ...
Short-term memory. Short-term memory (or " primary " or " active memory ") is the capacity for holding a small amount of information in an active, readily available state for a short interval. For example, short-term memory holds a phone number that has just been recited. The duration of short-term memory (absent rehearsal or active maintenance ...