Sarah Nadine Meissner

This study investigates whether pupil size reflects physical effort or motor fatigability during sustained repetitive movement and finds that it reflects effort but not fatigability.

This study shows reward reduces motor slowing during repetitive wrist tapping by increasing movement vigor, as indicated by higher muscle activity and sustained pupil dilation.

This paper links video-based eye movements to cortical and pupil-based arousal markers during sleep, showing state-dependent correlations and offering a non-invasive tool for sleep phenotyping.

This study uses 3T fMRI and multivariate analysis to distinguish functional activity of adjacent somatosensory nuclei in the brainstem, thalamus, and S1, showing improved decoding compared to univariate methods.

This study uses pupil size measurements during sleep to explore arousal level dynamics and their relationship with sleep oscillations and auditory responses.

This study shows that pupil-based biofeedback modulates cortical excitability, EEG spectral slope, and P300 response, suggesting a link to phasic LC activity and central arousal.

This study shows that human participants can voluntarily control their arousal state using pupil-based biofeedback, which modulates brainstem activity and physiological responses.

The paper shows that theta and alpha EEG oscillation amplitudes reflect accumulated sleep need during wakefulness, but not during the wake maintenance zone.