RecruitingBehavioural interventionReal-time fMRI for Insular Cortex Brain State-triggered Experience SamplingIn a neuroimaging session, study participants will repeatedly and intermittently report the content of their ongoing, self-generated experiences based on an experience-sampling protocol in which self-report ratings will be triggered based on real-time analysis of the participant's current brain state. The protocol will be conducted while participants are undergoing MRI scanning.