Roger Walz

Sample size buys detection, not localisation: an identifiability limit for hippocampal subfield morphometry

The paper shows that collinearity, not sample size, limits the ability to detect localized effects in hippocampal subfield morphometry, even with sufficient statistical power.

Ageing conserves and redistributes local geometry in the human structural connectome: an Ollivier-Ricci curvature analysis across the adult lifespan

This study examines how the geometry of the human structural connectome changes with age using Ollivier-Ricci curvature, finding that total geometric separation remains constant while individual network pairs shift curvature.

Crucial neuroprotective roles of the metabolite BH4 in dopaminergic neurons

This study demonstrates that BH4 deficiency exacerbates PD-related stressors and that BH4 augmentation protects dopaminergic neurons in multiple models.