Compensation and scheduling
SESSION
We provided monetary compensation to attract willing participants, reduce attrition, and incentivize completion of all training and testing sessions. We paid $10/hr as base pay for participation in each session and an additional $100 bonus for completion of the entire study. We scheduled dates and times of the six remaining sessions after the Orientation Session within a three-week interval (two sessions/week). In each training + testing session, the participants were instrumented for physiological recordings (~60 min) and asked to conduct NF training (~30 min) and perform the SH task (~45 min), except for the last session, in which they were asked only to perform the SH task.