Figure 1

The presentation order of Go/No-Go tasks. (A): During the formation stage, a red light was displayed to train participants in when to grasp a rubber ball. (B): The stimuli were the same for the differentiation and reverse differentiation stages. During the differentiation stage, participants were asked to squeeze the rubber ball when the light was red, but not when it was yellow. The roles of the red and yellow lights were reversed during the reverse differentiation stage.