This is a basic science study involving procedures with human participants. Participants in the study will visit UCL for clinical trials

Serotonin effects on brain function and their relationship to relapse when stopping antidepressants

This study looks at why depression sometimes comes back when people stop taking antidepressants. Researchers will study brain activity in people who have recovered from depression and plan to stop their medication. The aim is to understand how changes in brain chemicals contribute to relapse.