Scott R. Sponheim

The paper links aperiodic slope in EEG to glutamate levels in the human brain, suggesting it reflects excitatory tone.

IBMMA improves neuroimaging analysis by handling missing data and large datasets, revealing new brain region findings overlooked by traditional methods.

The paper examines thalamic volume differences in trauma-exposed individuals with PTSD, MDD, and controls, finding specific volume reductions and associations with symptom severity and childhood trauma.

This study investigates the neural mechanisms linking PTSD symptoms and heavy alcohol use in veterans, finding altered mediofrontal theta responses associated with negative reinforcement.

This study investigates how structural brain alterations in schizophrenia relate to network architecture, finding hub susceptibility and shared epicenters across disease stages and disorders.

This study examines how somatomotor beta bursts relate to cognitive control deficits in PTSD, finding that increased beta burst rates mediate the link between PTSD severity and impaired conflict monitoring.

This study finds smaller total and subregional cerebellar volumes in PTSD compared to controls using a large dataset and advanced parcellation methods.

This paper compares four methods for harmonizing cortical thickness data across multiple sites and finds that ComBat-GAM is most effective in detecting case-control differences and age-related cortical thinning.

This study compares distortion compensation methods in 7T gradient echo fMRI data using FSL and AFNI, finding that opposite phase encoding scans outperform B0 field maps in whole-brain analyses but SE-to-SE matching improves correction in specific regions.

The paper investigates visual contour perception and perceptual context effects in schizophrenia, finding impaired contour detection and weakened context suppression, with neural correlates in ERP components.

This study identifies reduced fractional anisotropy in the tapetum region of the corpus callosum in PTSD patients using a large multi-cohort analysis of diffusion MRI data.