The answer lies in memory storage and where Alzheimer's strikes in the brain.
Sign up for our email newsletter for the latest science newsPeople with Alzheimer's disease may struggle to remember how they spent their morning, but still hold on to memories of their childhood. Sometimes they may even confuse caregivers for their parents or other people from their past.
This is a result of how memory is stored. The disease is known to attack the area of the brain called the hippocampus. Largely responsible for learning and, a well-tuned hippocampus is required for retrieving data on everything from current world leaders to the contents of our bedroom closets. However, memories that stretch into one's past are often housed in other parts of the brain outside the hippocampus, in the neocortex — which spares them from the disease's initial blows.
This story is part of an ongoing series exploring questions about Alzheimer's disease and dementia. Read more related to this topic:
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