Sounds like a slightly different take on cognitive/brain reserve. What protocol is your doctor prescribing to prevent your 33% chance of getting dementia. There are quite a few pages here. Have your doctor explain them all including the references. You do expect your doctor to more about this than you or I do, don't you?
Neuroplasticity and cognitive aging: The scaffolding theory of aging and cognition
Abstract
A
recent proposal called the Scaffolding Theory of Cognitive Aging (STAC)
postulates that functional changes with aging are part of a lifespan
process of compensatory cognitive scaffolding that is an attempt to
alleviate the cognitive declines associated with aging. Indeed,
behavioral studies have shown that aging is associated with both decline
as well as preservation of selective cognitive abilities. Similarly,
neuroimaging studies have revealed selective changes in the aging brain
that reflect neural decline as well as compensatory neural recruitment.
While aging is associated with reductions in cortical thickness,
white-matter integrity, dopaminergic activity, and functional engagement
in posterior brain regions such as the hippocampus and occipital areas,
there are compensatory increases in frontal functional engagement that
correlate with better behavioral performance in older adults. In this
review, we discuss these age-related behavioral and brain findings that
support the STAC model of cognitive scaffolding and additionally
integrate the findings on neuroplasticity as a compensatory response in
the aging brain. As such, we also examine the impact of external
experiences in facilitating neuroplasticity in older adults. Finally,
having laid the foundation for STAC, we briefly describe a proposed
intervention trial (The Synapse Program) designed to evaluate the
behavioral and neural impact of engagement in lifestyle activities that
facilitates successful cognitive scaffolding using a controlled
experiment where older adult participants are randomly assigned to
different conditions of engagement.
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