Temporally congruent auditory stream modulates visual processing both independently of and interactively with selective attention in a competing scenario

In competing environments, both selective attention and audiovisual interaction can facilitate visual processing, yet whether their influences operate independently or interactively remains debated. Using electroencephalography (EEG), we addressed this issue by instructing participants to selectively attend to one of two lateralized flickering discs, which also changed their shapes either temporally congruent or incongruent with a pitch-changing sound. We found that reaction times for detecting