The influence of synchronous audiovisual distractors on audiovisual temporal order judgments

TitleThe influence of synchronous audiovisual distractors on audiovisual temporal order judgments
Publication TypeJournal Papers
Year of Publication2007
AuthorsVatakis, A, Bayliss, L, Zampini, M, Spence, C
JournalPerception & Psychophysics
Volume69
Pagination298-309
ISSN0031-5117
AbstractParticipants made unspeeded temporal order judgments (TOJs) regarding which occurred first, an auditory or a visual target stimulus, when they were presented at a variety of different stimulus onset asynchronies. The target stimuli were presented either in isolation or positioned randomly among a stream of three synchronous audiovisual distractors. The largest just noticeable differences were reported when the targets were presented in the middle of the distractor stream. When the targets were presented at the beginning of the stream, performance was no worse than when the audiovisual targets were presented in isolation. Subsequent experiments revealed that performance improved somewhat when the position of the target was fixed or when the target was made physically distinctive from the distractors. These results show that audiovisual TOJs are impaired by the presence of audiovisual distractors and that this cost can be ameliorated by directing attention to the appropriate temporal position within the stimulus stream.
URLhttp://dx.doi.org/10.3758/BF03193751
DOI10.3758/BF03193751