7 doctors weighed in:
Alzheimers disease, dementia, poor memory , mci -- what causes do they have in common?
7 doctors weighed in

Dr. Alan Ali
Psychiatry
4 doctors agree
In brief: Memory deficits
There is a chemical in the brain called acetylcholine which is deficient with aging, and that causes deficits in cognitive functions.

In brief: Memory deficits
There is a chemical in the brain called acetylcholine which is deficient with aging, and that causes deficits in cognitive functions.
Dr. Alan Ali
Dr. Alan Ali
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1 comment
Dr. Eric Weisman
MCI implies >1.5 standard deviation below expected values on neurocognitive testing. it may involve one or more cognitive domains. Dementia suggests greater than 2.5 standard deviations. Most memory disorders do not involve a deficiency in the neurotransmitter acetylcholine but rather a loss of neuronal connectivity or viability.
Dr. Ladislav Volicer
Psychiatry - Geriatric
2 doctors agree
In brief: Not known
Alzheimer's disease is only one cause of dementia and there are other causes of memory problem. Some are reversible (e.
g., vitamin B12 deficiency) so it is important to exclude them by medical examination. Mci may be a mild form of alzheimer's disease.

In brief: Not known
Alzheimer's disease is only one cause of dementia and there are other causes of memory problem. Some are reversible (e.
g., vitamin B12 deficiency) so it is important to exclude them by medical examination. Mci may be a mild form of alzheimer's disease.
Dr. Ladislav Volicer
Dr. Ladislav Volicer
Thank
1 comment
Dr. Eric Weisman
MCI can also be due to B12 deficiency (any cause) (1.5 standard deviations on neuropsych testing in one or multiple cognitive domains)
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