Mean response times and error rates to unisensory (Uni = Unisensory target) and multisensory target stimuli. The other labels ‘−100’, ‘−50’, ‘0’, ‘+50’, ‘+100’ represent the multisensory trials, in which there are targets in the relevant modality and refer to the mean SOA (±25 ms) of the accessory other-modality input of the multisensory stimulus. Thus, for the attend-auditory condition, the auditory input of the multisensory AV stimulus was the target, and the visual input the standard, occurring at the relative onset time indicated. Accordingly, for the attend-visual condition, the visual input of the multisensory AV stimulus was the target, with an auditory standard occurring at the relative onset time indicated