Study design
We conducted a 2 (treatment: OLP versus no-treatment) × 2 (social experience: inclusion versus exclusion) between-subjects design. Participants were randomly assigned to one of the four conditions. Written informed consent was obtained from each subject before participation in the study. The research was approved by the Ethics Committee of the Faculty of Psychology at the University of Basel, Switzerland, and carried out in accordance with the Declaration of Helsinki. Prior to data collection, the study was pre-registered here: 