10-17-2020 Retirement Living - Flipbook - Page 5
October 17, 2020
Study looks into why some
older adults have better
memories than others
By Kiersten Willis
Newly published research shows why
some older adults remember better than
others. The answer has to do with how
much hippocampal activity is occurring.
The findings were conducted by Alexandra Trelle, a postdoctoral research
fellow at Stanford University, and her
colleagues. The team built on studies that
have focused on young populations and
looked into memory and recall in healthy,
older adults as part of the Stanford Aging
and Memory Study. The results were
published late last month in eLife.
“Some individuals exhibit remarkable
maintenance of memory function
throughout late adulthood, whereas
others experience significant memory
decline,” Trelle said in a press release.
“Studying these differences across individuals is critical for understanding the
complexities of brain aging, including
how to promote resilience and longevity.”
In the experiment, lead author Trelle
and the team gathered 100 participants
between the ages of 60 and 82. As the
participants studied words associated
with pictures of famous people and
places, their brains were scanned. Then,
their brains were scanned as they took a
memory test in which they were
prompted with previously viewed words
and asked to remember the picture
paired with it. The test was created to
evaluate each participant’s ability to
recall specific links between parts of an
event. This form of memory is frequently
disproportionately affected by aging.
Upon analyzing the scans, researchers
saw the brain processes that support
remembering in older adults look like
those in younger people. What they saw
showed an increase in hippocampal activity — the hippocampus is the part of the
brain mainly associated with memory —
and the reinstatement of activity patterns
in the cortex that were there when people first experienced the event.
“It was striking that we were able to
replicate this moment-to-moment relationship between hippocampal activity,
replay in the cortex, and memory recall,
which has previously been observed only
in healthy younger adults,” Trelle said.
“In fact, we could predict whether or not
an individual would remember at a given
moment in time based on the information
carried in patterns of brain activity.”
On average, the ability to remember
declined with age, according to the findings. But regardless of age, stronger hippocampal activity and replay in the cortex was associated with better performing memory.
The research is part of the first steps
for future probes into the Stanford Aging
and Memory Study cohort’s research on
older adults’ memory. Ultimately, the goal
is to be able to identify people who are at
increased risk for Alzheimer’s disease.
BayWoods of Annapolis
The Only Waterfront Retirement Community on the Chesapeake Bay
Schedule a tour today and
choose from a variety of
1 bedroom apartments!
Did you know
services for our
Chester Models - 1 BR
1 bathroom units with large living
spaces and walk-in closets. Some
Chester models feature 1.5 bath
accommodations. 1000 square feet.
Wye II Models - 1 BR
1 Bedroom, 1 Bathroom units with dens
and enclosed balconies. Some Wye II
units feature 1.5 bath accommodations.
Approximately 1100 square feet.
Severn Models - 2 BR
Our most popular apartments by far!
The Severns are luxurious 2 bedroom,
2 bathroom units with enclosed balconies.
Walk-in closets. 1380 square feet.
Please call for more
information and to
set up a tour.
WE ARE OPEN!
Call Jim Harrington for
7101 Bay Front Drive
Annapolis, MD 21403