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by Cynthia M. Johnson, MA
Amnesia is the inability to remember information or events. It may be temporary or permanent.
Memory is created by complicated interactions within several parts of the brain. Most memory loss or the inability to make new memories is caused by damage to the brain. It may be caused by trauma, an illness like a brain infection, stroke, or some medications.
Sometimes the cause is not known, especially with transient global amnesia.
Rarely, a psychological trauma or shock can cause a type of amnesia called dissociative amnesia. This is most often short-term amnesia.
Risk Factors TOP
Factors that may increase the chances of amnesia:
Symptoms may include:
Amnesia generally does not affect general intelligence, personality, or self-identity. In other words, people with amnesia remember who they are.
You will be asked about your symptoms and medical history. The doctor will ask specific questions about memory loss and when it started. Family members may also be interviewed in order to gather information.
To help determine a cause the doctor may do the following tests:
Treatment of temporary amnesia will focus on treating the cause. This may include psychological treatment for dissociative amnesia. Some amnesia may only last a few days and will simply require observation until the amnesia has passed.
Long-term amnesia will require occupational therapy and new skills to help manage daily activities. Occupational therapy can help with skills and use memory training to better manage memory loss. Technological tools, notebooks, or reminders like photos may also help manage memory gaps.
Memory loss can be difficult for the individual, family, and friends. A therapist or support group may help you and loved ones to adjust.
There are no current guidelines to prevent amnesia.
American Academy of Neurology
Family Doctor—American Academy of Family Physicians
Canadian Neurological Sciences Federation
Amnesia. Better Health Channel website. Available at: https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/amnesia. Updated August 2014. Accessed April 18, 2018.
Amnesias. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/neurologic-disorders/function-and-dysfunction-of-the-cerebral-lobes/amnesias. Updated June 2017. Accessed April 18, 2018.
Memory loss (amnesia). NHS Choices website. Available at: https://www.nhs.uk/conditions/memory-loss-amnesia. Accessed April 18, 2018.
Transient global amnesia. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated May 11, 2017. Accessed April 18, 2018.
Transient global amnesia. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/neurologic-disorders/function-and-dysfunction-of-the-cerebral-lobes/transient-global-amnesia. Updated June 2017. Accessed April 18, 2018.
Treating amnesia. Brain & Life—American Academy of Neurology website. Available at: https://www.brainandlife.org/the-magazine/article/app/4/4/20. Accessed April 18, 2018.
Last reviewed March 2018 by EBSCO Medical Review Board Adrian Preda, MD
Last Updated: 3/8/2016
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