No antidepressant-like acute effects of bright light on emotional information processing in healthy volunteers

Rationale Bright light treatment (BLT) is an efficacious antidepressant intervention, but its mechanism of action is not well understood. Antidepressant drugs acutely affect how emotional information is processed, pushing the brain to prioritise positive relative to negative input. Whether BLT could have a similar effect is not known to date. Objective To test whether BLT acutely influences emotional information processing similar to...