Table 1.
Descriptions of fMRI tasks
| Task | Session† | Duration | Description |
|---|---|---|---|
| Controlled Oral Word Association Task (COWAT) | A | 5m 0s | Alternating 15s blocks of Letter or Category word generation separated by 15s rest |
| Rating affective images (IAPS affect) | A | 5m 14s | 45 IAPS images (negative, neural, positive) presented in random order for 2.5s with 2–6s inter-stimulus interval |
| Recognizing affective images (IAPS recognition) | A | 10m 12s | 90 IAPS images (45 previously seen, 45 new) presented in random order for 2.5s with 2–6s interstimulus interval |
| Judgment of Line Orientation task (JLOT) | A | 4m 16s | 15 JLOT trials (self-paced, up to 15s duration) with rest at start of task and each trial completion |
| N-back | A | 8m 0s | Alternating 45s blocks of 0-back or 2-back trials separated by 15s rest |
| Resting-state | A | 7m 30s | Passive viewing of a black fixation cross upon light gray background |
| Iowa Gambling Task | B | 8m 6s – 11m 42s (me an 9m 14s) | Self-paced, participant draws 100 cards of varying reward/loss from 4 decks |
| Finger tapping | B | 3m 0s | 18s blocks of index finger tapping (left-right-right-left-right-left) separated by 10s rest |
| Multi-source Interference Task (MSIT) | B | 8m 0s | Alternating 48s blocks of Congruent or Incongruent MSIT trials with 30s rest at start, middle, and end of task |
| Verbal Paired Associates | B | 2m 0s | Ten word pairs presented as consecutive 6s blocks with 30s rest at start and end of task |
| Resting-state | B | 7m 30s | Passive viewing of a black fixation cross upon light gray background |
| Tower of London | B | 3m 26s – 7m 30s (me an 4m 20s) | Self-paced, 24 Tower of London trials (2-, 3- and 4-move) starting with 5s planning phase and ending with 6s rest |
| Flashing visual checkerboard | B | 2m 0s | Four 18s blocks of 4Hz flashing checkerboard separated by 10s rest |
†
Session order was counterbalanced across participants. Each session began with a resting-state scan, and IAPS affect/IAPS recognition were the second and final scans of session A; otherwise, within-session task order was also counterbalanced across participants.