In 86 adults, brain scans showed widespread white matter changes, while older people relied on different nerve pathways than younger adults for executive tasks.In 86 adults, brain scans showed widespread white matter changes, while older people relied on different nerve pathways than younger adults for executive tasks.
Preprint: cross-sectional study of 86 peopleMechanisms
Among 5,230 adults aged 45 and older followed for a median 9.8 years, one brain diffusion marker best predicted cognitive decline, while two best predicted dementia risk.Among 5,230 adults aged 45 and older followed for a median 9.8 years, one brain diffusion marker best predicted cognitive decline, while two best predicted dementia risk.
In 46 older and 51 younger adults, altered integrity in two social brain tracts partly mediated age-related vulnerability to email phishing.In 46 older and 51 younger adults, altered integrity in two social brain tracts partly mediated age-related vulnerability to email phishing.
Researchers linked poor auditory nerve synchrony and myelin degradation to amplified communication difficulties in older humans, beyond standard hearing thresholds.Researchers linked poor auditory nerve synchrony and myelin degradation to amplified communication difficulties in older humans, beyond standard hearing thresholds.