This dataset is the output of an experiment comparing how musicians and non-musicians perceive timing between basic flash-tone stimuli. On each trial in the experiment, a flash and tone with a delay in their onset (stimulus onset asynchrony; SOA) is presented, and participants must indicate whether they perceived the flash and the tone to be presented simultaneously or not. The pattern of audiovisual asynchrony on trials in the past has also been found to affect perception of the current trial (temporal recalibration), so we also tested simultaneity perception after "adaptation phases" where participants were shown many flash-tone stimuli that had a constant asynchrony.

For each phase in the experiment, the dataset has two columns: an SOA column representing the stimulus condition, and a response column representing whether simultaneity ("1") or asynchrony ("0") was perceived. "Base" refers to a baseline stimultaneity judgement phase before adaptation, "Test" refers to a simultaneity judgement phase after adaptation, "Pos" represents the fact that the adaptation phase had a positive asynchrony (meaning the tone was delayed by 200 ms), and "Neg" represents the fact that the adaptation phase had a negative asynchrony (meaning the flash was delayed by 200 ms). For the "participant" column, M refers to a musician and N refers to a non-musicians. Finally, we have a column "Sign Trial" which represents the sign (positive or negative) of the SOA on the previous trial (and we calculate this for all trials in the experiment).