Underactive thyroid gland (hypothyroidism).Transient global amnesia (TGA) – see below.Brain infection or inflammation (encephalitis).Injuries to the brain, including concussion.Many things can cause amnesia, including the following.
Several different areas of the brain are involved, so damage to any of these areas can affect the ability to form and retrieve memories. The process of memory is complex and not fully understood. Both conditions affect memory, but amnesia is a problem that only affects memory, while people with dementia also have other symptoms, such as problems with thinking and language.
It’s important to note that amnesia is not the same as dementia. But their intelligence, personality, general knowledge and ability to communicate and learn skills is generally not affected. People with amnesia can appear confused or disoriented due to their memory problems. Longer-term memories are affected less often. The exact symptoms of amnesia and how severe they are will depend on the cause.Īmnesia frequently involves loss of recent memories as well as the ability to retain new information. Support from a counsellor or psychologist may help manage the symptoms. If amnesia is ongoing it can be distressing for both the affected person and their family and friends. Treatment of amnesia depends on the cause. It can affect the ability to form new memories (known as anterograde amnesia) or the ability to remember things from the past (retrograde amnesia). Depending on the cause, amnesia may be temporary or permanent. Amnesia means partial or total loss of memory.
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