Alzheimer and memory

[Added January 2003]

First a news:
Blog to Cope With Alzheimer’s Fog
.

Seniors in the early stages of Alzheimer’s disease, with mild to moderate memory loss, are writing Web logs to help them make sense of their daily lives. And the activity, they say, is slowing the onset of their symptoms.

Human memory is very difficult to study because of its complexity and the
impossibility to carry out experiments with living subject. But Alzheimer’s
disease is nothing else that a memory experiment carried out by nature.
A terrible experiment:what happens to memory if you destroy little by little
neurons almost everywhere in the brain in around ten years? Which memory
subsistem will go down first, which will last up to the end.

The result of this terrible experiment is that episodic memory will go
first. What lasts more is procedural memory.

In fact the memory impairment in Alzheimer’s patients is the same that
experiment aged people but instead of proceeding slowly it is very fast.
For this reason some scientist says that AD is not a proper disease but
only the simptoms of a very fast aging.

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