The investigators are going to compare groups of anesthesiology residents going through same scenarios of simulated critical events in high fidelity simulation session. Scenarios will be recorded to be analyzed by 2 reviewers independently. A specific checklist of appropriate treatment and a non technical skill checklist will be use to cote team performance (OTTAWA and TEAM scales). Stress of the participants will be assessed by visual analogic scale of participants anxiety and stress. The two groups will be compare to see if improvement in team performance is associated with the intervention.