Alexandre Berger

This study shows light modulates locus coeruleus (LC) activity in an emotion-dependent manner, with higher illuminance dampening responses to negative stimuli and enhancing neutral ones.

The paper investigates the relationship between locus coeruleus (LC) activity during wakefulness and REM sleep quality in humans, finding task-dependent associations.

This study investigates how varying light levels affect different regions of the human hypothalamus during cognitive tasks, finding distinct activity patterns linked to task performance.

This study examines how different light levels affect task-evoked pupil responses during cognitive tasks, finding that higher light levels increase pupil dilation in response to auditory stimuli.

The paper investigates how repeated short light exposures affect sustained pupil responses during different cognitive tasks, finding that higher melanopic irradiance increases pupil responses and that task context influences variability.

This study shows blue-enriched light enhances thalamo-cortical connectivity during an auditory attention task, supporting its role in modulating cognitive activity.

This study finds that higher locus coeruleus activity during wakefulness in older adults is linked to worse sleep quality and reduced theta band power during REM sleep.

The paper investigates the relationship between structural and functional characteristics of the locus coeruleus in young and late middle-aged individuals using MRI and finds no association between LC contrast and functional response.