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Module 1: Théories sur l'oubli

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Causes organiques de l'oubli

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Psychology - Area of Study 1: Memory - Organic causes of forgetting

Organic causes of forgetting

View the video showing Dr Jim Lynch discussing anterograde and retrograde
amnesia.

View the video showing Dr Jim Lynch discussing Alzheimer's disease,
dementia and memory loss.

Memory loss can be due to biological or organic causes. This can be as a
result of physical trauma such as a stroke or injury. Organic amnesia is
usually partial and a total loss of memory is rare.

- when a person cannot remember events which happened the brain damage
occurred. 'Antero' means forward, therefore it is the loss of memory
'forward' of or after the brain damage.

- when a person cannot remember events which happened the brain damage
occurred. 'Retro' means backwards, therefore it is the loss of memory
'backwards' of or before the brain damage.

- affecting one in 10 people over 65 years of age and nearly half of
those aged over 85, is the most common cause of dementia. It is a
degenerative disease that usually begins gradually, causing a person to
forget recent events or familiar tasks. The rate of progression of
Alzheimer's disease varies from person to person but this brain disease
eventually causes confusion, personality and behaviour changes and impaired
judgment. Communication becomes difficult as the sufferer struggles to find
words, finish thoughts or follow directions. The person experiences
difficulties with learning, thinking and reasoning, and most sufferers
become unable to care for themselves.

Scientists are still unsure as to what causes Alzheimer's. Age and family
history have been identified as potential risk factors. Researchers believe
that Alzheimer's is a complex disease, probably caused by a variety of
influences.

At this stage, there is no proven medical treatment to cure or stop the
progress of Alzheimer's disease. Some drugs may temporarily improve
symptoms related to the disease.

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