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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. [ 2]
Neurology. 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 ...
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]
Steroid dementia syndrome. Steroid dementia syndrome describes the signs and symptoms of hippocampal and prefrontal cortical dysfunction, such as deficits in memory, attention, and executive function, induced by glucocorticoids. [ 1] Dementia-like symptoms have been found in some individuals who have been exposed to glucocorticoid medication ...
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 ...
Lacunar amnesia is the loss of memory about a specific event. This specific form of amnesia is caused by brain damage in the limbic system which is responsible for our memories and emotions. When the damage occurs it leaves a lacuna, or a gap, in the record of memory within the cortex region of the brain. There is a general belief that certain ...
The difference in memory between normal aging and a memory disorder is the amount of beta-amyloid deposits, hippocampal neurofibrillary tangles, or amyloid plaques in the cortex. If there is an increased amount, memory connections become blocked, memory functions decrease much more than what is normal for that age and a memory disorder is ...