Figure 1.

Example of the sequential order of events in two subsequent trials. Depending on the block, the image was neutral or unpleasant. The arrays of the working memory (WM) task could be comprised of four squares (high-load condition) or two squares (low-load condition). During the WM task, participants were instructed to respond whether one of the squares on the cued hemifield changed color by comparing the test array with the previously shown memory array. The image was always irrelevant to the task. The trial N-1 was followed by the trial N after an intertrial interval of 2,000–2,100 ms.