BRAIN NETWORKS AND FUNCTIONAL RESERVE IN THE PRESENCE OF AMYLOID PATHOLOGY
2024
Brain Networks and Physical Function in Alzheimer's Disease
Sample size: 81
publication
Evidence: moderate
Author Information
Author(s): Laurienti Paul
Primary Institution: Wake Forest University School of Medicine
Hypothesis
The study examines how brain network integrity influences the effects of amyloid beta on physical function in older adults.
Conclusion
Individuals with high brain network integrity and low amyloid beta maintained better physical function.
Supporting Evidence
- High network integrity and low Aβ were associated with the best physical function.
- Low network integrity and high Aβ were linked to the worst physical function.
- The central executive network and basal ganglia network moderated the effects of Aβ on physical function.
Takeaway
Older people with strong brain networks can do better physically even if they have signs of Alzheimer's disease.
Methodology
The study used resting-state functional MRI and Aβ PET scans to assess brain networks and physical function.
Limitations
The findings need to be replicated in a larger and more diverse sample.
Participant Demographics
Community-dwelling older adults, mean age 76 years, 51% female.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website