Journal
ATTENTION PERCEPTION & PSYCHOPHYSICS
Volume 82, Issue 7, Pages 3521-3543Publisher
SPRINGER
DOI: 10.3758/s13414-020-02062-7
Keywords
Attention; Multisensory processing; Audiovisual integration
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There has been a recent increase in individual differences research within the field of audiovisual perception (Spence & Squire,2003,Current Biology, 13(13), R519-R521), and furthering the understanding of audiovisual integration capacity with an individual differences approach is an important facet within this line of research. Across four experiments, participants were asked to complete an audiovisual integration capacity task (cf. Van der Burg, Awh, & Olivers,2013,Psychological Science, 24(3), 345-351; Wilbiks & Dyson,2016,PLOS ONE 11(12), e0168304;2018,Journal of Experimental Psychology: Human Perception and Performance,44(6), 871-884), along with differing combinations of additional perceptual tasks. Experiment1employed a multiple object tracking task and a visual working memory task. Experiment2compared performance on the capacity task with that of the Attention Network Test. Experiment3examined participants' focus in space through a Navon task and vigilance through time. Having completed this exploratory work, in Experiment4we collected data again from the tasks that were found to correlate significantly across the first three experiments and entered them into a regression model to predict capacity. The current research provides a preliminary explanation of the vast individual differences seen in audiovisual integration capacity in previous research, showing that by considering an individual's multiple object tracking span, focus in space, and attentional factors, we can account for up to 34.3% of the observed variation in capacity. Future research should seek to examine higher-level differences between individuals that may contribute to audiovisual integration capacity, including neurodevelopmental and mental health differences.
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