An #EEGManyLabs study to test the role of the alpha phase on visual perception (a replication and new evidence)

Recent studies have debated whether alpha oscillations are crucial for how the brain processes sensory information through periods of varying excitability. To investigate, this #EEGManyLabs project is replicating a key study by Mathewson et al. (2009), which found that the visibility of visual stimuli and the amplitude of visual evoked potentials like N1, P1, P2, and P3, depend on their timing relative to alpha phases. If the replication is successful, a new experiment will explore if these effects rely on the predictability of the stimulus onset time.