Nitin Williams

The influence of inter-regional delays in generating large-scale brain networks of phase synchronization

This study compares Biophysical Network Models (BNMs) with different delay specifications to determine their role in generating alpha-band phase synchronization networks in MEG data.

Discrete Ricci curvatures capture age-related changes in human brain functional connectivity networks

This study applies discrete Ricci curvatures to functional connectivity networks of young and older adults, finding age-related differences in brain regions associated with cognitive domains and behavioral scores.

Modules in connectomes of phase-synchronization comprise anatomically contiguous, spatially related regions

The paper uses SEEG data to identify stable, frequency-specific modules in phase-synchronization connectomes that are anatomically contiguous and functionally related.

Graph Ricci Curvatures Reveal Atypical Functional Connectivity in Autism Spectrum Disorder

This study applies graph Ricci curvatures to compare functional connectivity networks in ASD and typically developing individuals, finding region-specific differences associated with cognitive impairments and potential therapeutic targets.

Biophysical network models of phase-synchronization in MEG resting-state

This study investigates how biophysical network models can replicate MEG-derived phase-synchronization networks, finding that conduction delays do not improve the match but structural connections and Wilson-Cowan dynamics do.

Sensory attenuation is related to dopamine dose in Parkinson’s disease

This study investigates how dopamine levels in Parkinson’s disease patients affect sensory attenuation during voluntary movements, finding a negative correlation with motor severity and a positive correlation with dopamine dose.

Strong and specific associations between cardiovascular risk factors and brain white matter micro- and macro-structure in health ageing

This study examines the associations between cardiovascular risk factors and white matter structure in aging, finding that systolic blood pressure, diastolic blood pressure, and heart rate independently impact white matter health.

Physical activity predicts population-level age-related differences in frontal white matter

The paper shows that physical activity preserves frontal white matter integrity and reduces age-related slowing in a population-based sample.

Age-Related Delay in Visual and Auditory Evoked Responses is Mediated by White- and Gray-matter Differences

The paper investigates age-related differences in visual and auditory evoked responses using MEG and MRI, finding distinct structural correlates for each type of delay.