Sophie C. Andrews

Gut Microbiome Composition in Older Adults with PTSD Symptoms and Trauma-Exposed Controls: Findings from the GUMP Study

This study examines gut microbiome composition and function in older adults with PTSD symptoms versus trauma-exposed controls, finding differences in functional pathways but not taxonomic composition.

Resting-State EEG Aperiodic Exponent Moderates the Association Between Age and Memory Performance in Older Adults

This study finds that the aperiodic exponent in resting-state EEG moderates age-related memory decline in older adults, with higher exponents associated with better memory performance.

Relationships between GABA+ and Glx concentrations with age and inhibition in healthy older adults

This study examines age-related changes in GABA+ and Glx concentrations and their associations with inhibition tasks in healthy older adults, finding no significant age-related changes but a significant negative relationship between SM1 Glx and go/no-go error rates.

Neurophysiological Correlates of Modifiable Dementia Risk Factors in Cognitively Unimpaired Older Adults

This study identifies neurochemical markers in specific brain regions associated with modifiable dementia risk factors in cognitively unimpaired older adults.

Age-related Inhibitory Decline: Examining Inhibition Sub-Components and their Impact on Sustained Attention in Healthy Ageing

This study examines age-related changes in inhibitory sub-components and their impact on sustained attention in healthy older adults, finding specific age effects and mediation effects.

Ageing attenuates exercise-enhanced motor cortical plasticity

This study examines how ageing affects exercise-induced changes in motor cortical plasticity, finding that older adults show reduced plasticity responses to stimulation after exercise.