A cognitive stressor to evaluate acute and sustained stress reactivity for event-related potential (ERP) studies. The PAST is a titrated arithmetic task adapted from the Montreal Imaging Stress Task (MIST), with added experimental control over presentation parameters, improved and synchronized acoustic feedback and generation of timing markers needed for physiological analyzes of real-time brain activity.

Atchley, R., Ellingson, R., Klee, D., Memmott, T., & Oken, B. (2017). A cognitive stressor for event-related potential studies: the Portland arithmetic stress task. Stress, 20(3), 277-284