Fig. 1: Experimental design.
From: Distinct functions for beta and alpha bursts in gating of human working memory
A sequential array of four bars (stim 1-4) with random orientation was presented. Each bar was randomly associated with a colour (red, green, blue or magenta dot in the middle of the bar). Later, a retro-cue with one of the four colours was presented, identifying the bar orientation to recall. In half of the trials (randomized), bar 2 and 3 in the sequence were never tested and acted as distractors. These trials were indicated by a pre-cue. The pre-cue and all four bar stimuli were frequency tagged (Methods). The subjects had 5 s to submit a response before the next trial. Each subject performed 400 trials.
