In Sync: The Effect of Physiology Feedback on the Match between Heart Rate and Self-Reported Stress

Table 1

Brief descriptions of all 20 tasks used in the experiments. The time limit of tasks was restricted to one minute, sometimes by the length of the stimulus (e.g., sound or video clips) and sometimes by sounding a bell after 1 minute and having the software automatically continue with the next step of the experiment.

Number	Category	Task description
1	Stressful	Mental arithmetic: calculate the result of 1149 minus 17, subtract 17 again from the result, etc.
2	Stressful	Read a scenario about standing in traffic, illustrated with a video.
3	Stressful	Play a computer game under time pressure, where falling cards need to be caught before they reach the bottom of the screen.
4	Stressful	Memorize a list of common English words (memory for the words is not tested afterward).
5	Stressful	Listen to a sound clip containing silence randomly interspersed with sharp bursts of noise.
6	Stressful	Count the red cars passing by in a video clip of a busy intersection.
7	Stressful	Relive a self-chosen memory that evokes frustration or anger.
8	Stressful	Make a to-do list.
9	Stressful	Watch a video clip of a throng of people getting pushed and pulled at a crowded subway station.
10	Stressful	Record a voicemail message for a job application.
11	Relaxing	Self-relaxation with eyes open.
12	Relaxing	Watch a video clip showing a quiet beach.
13	Relaxing	Play a simple computer game, where two cards with the same number need to be matched.
14	Relaxing	Watch a video of smooth, sparse traffic.
15	Relaxing	Read an article about “perfect summer weather.”
16	Relaxing	Watch a video clip showing a forest.
17	Relaxing	Read a scenario about taking a relaxing road trip, illustrated with a video.
18	Relaxing	Do a guided breathing exercise.
19	Relaxing	Relive a memory that evokes happiness or relaxation.
20	Relaxing	Listen to a sound clip containing some smooth jazz.