John C. Williams

A tale of two n-backs: Diverging associations of dorsolateral prefrontal cortex activation with n-back task performance

This study compares activation-performance relationships in two n-back working memory tasks across datasets, finding diverging associations in specific brain regions.

Characterization and Mitigation of a Simultaneous Multi-Slice fMRI Artifact: Multiband Artifact Regression in Simultaneous Slices

This paper identifies and corrects a novel artifact in multiband fMRI data using MARSS, improving signal-to-noise ratio and reducing systematic spatial patterns.

Functional Localization of the Human Auditory and Visual Thalamus Using a Thalamic Localizer Functional Magnetic Resonance Imaging Task

The paper develops a thalamic localizer fMRI task to functionally define MGN and LGN regions in human participants using 3 Tesla multiband fMRI, and validates their use in resting-state functional connectivity analyses.

Advancing motion denoising of multiband resting-state functional connectivity fMRI data

This paper evaluates motion denoising methods for multiband fMRI data and introduces new metrics and parameter optimization strategies to improve reliability and reproducibility in resting-state functional connectivity studies.