Spatial N-back [
Participants responded to a visual stimulus appearing in one of eight locations, with task demand varied across 0-back, 1-back, and 2-back conditions. Participants were required to indicate (by pressing a Yes or No button) whether the stimulus appeared at the 12 o’clock position (0-back), the same position as the previous visual stimulus (1-back), or the same position as the visual stimulus two previous (2-back).