Ewa Beldzik

The paper identifies a hypothalamic-brainstem activity sequence that drives arousal fluctuations and cortical hemodynamics during drowsiness using fMRI.

The paper reanalyzes passive finger movement fMRI data using univariate and multivariate methods to show that multivariate analysis better identifies brain regions encoding kinesthesia and proprioception, with larger neural representation for amplitude and direction than velocity.

This study shows that sleep deprivation leads to attentional failures linked to increased cerebrospinal fluid flow and systemic physiological changes.

This study investigates whether midfrontal theta and brain activity in aMCC/preSMA reflect proactive or reactive cognitive control mechanisms beyond response time effects in conflict tasks.

The paper investigates diurnal changes in brain anatomy using voxel-based morphometry and links them to sleep characteristics in a large dataset.

This study examines how the amplitude of diurnal rhythms relates to brain structure in individuals with different chronotypes, finding correlations in the visual cortex and middle temporal gyrus.

This study investigates trial-by-trial coupling between theta power and BOLD signals during conflict tasks, revealing distinct relationships in brain regions associated with conflict and error processing.