Comparison of salivary cortisol between the stressor and control conditions pre hand-immersion (sample 1) and post hand-immersion (sample 2; measured after the PASL scan). To illustrate the main effect of condition order on cortisol level, the measurements for participants who performed the cold pressor task on day 1, i.e., stressor-condition-first, are presented separately from participants who performed the cold pressor task on day 2, i.e., control-condition-first.