Neurology Advisor | In Alzheimer's, Cognitive Impairment Manifests Earlier - Neurology Advisor Neurology Advisor For people who develop Alzheimer's disease dementia, cognitive impairment may begin even earlier in the preclinical stage than previously thought, according to a study published in Neurology. Performance on cognitive tests of episodic memory, executive ... Alzheimer's: Low memory test scores may be early sign of dementia Simple memory tests may hint at Alzheimer's 18 years before diagnosis: New ... Onset Of Alzheimer's Can Be Ascertain Two Decades Before Symptoms: Study ... |