For each testing session, participants set their preferred pace but were blinded to treadmill speed.
Of 176 session participants who were invited to participate in our study, 28 people declined.
Training session participants were physicians from ICUs that intended to participate in the NICE registry.
At the end of the experimental session participants were thanked for their time, and reimbursed for participation.
In each session, participants were randomly divided into four groups.
During a deep breathing session, participants were instructed to take a series of deep breaths every 30 min. During a control session, participants sat quietly.
After completing the experimental session, participants were thoroughly debriefed with regard to the false-feedback manipulation.
As part of the scanning session participants also underwent two resting state scans (data presented separately44.
In a later session, participants were randomly assigned to either an experimental or control group.
During each testing session, participants performed the task while walking on a treadmill and seated.
During the first session, participants rated their liking for 12 products (apples purees or desserts).
