Longitudinal trajectories of cognitive reserve in hypometabolic subtypes of Alzheimer's disease
This study examined how cognitive reserve—the brain's ability to maintain function despite Alzheimer's pathology—differs between typical and limbic-predominant subtypes of Alzheimer's disease using neuroimaging data from over 500 participants. Results showed that higher cognitive reserve predicted slower cognitive decline, with typical Alzheimer's subtype showing faster reserve deterioration than the limbic-predominant form, highlighting the importance of subtype-specific analyses in understanding disease progression.