Individual differences in multiple object tracking, attentional cueing, and age account for variability in the capacity
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Individual differences in multiple object tracking, attentional cueing, and age account for variability in the capacity of audiovisual integration Jonathan M. P. Wilbiks 1 & Annika Beatteay 1
# The Psychonomic Society, Inc. 2020
Abstract 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. Experiment 1 employed a multiple object tracking task and a visual working memory task. Experiment 2 compared performance on the capacity task with that of the Attention Network Test. Experiment 3 examined participants’ focus in space through a Navon task and vigilance through time. Having completed this exploratory work, in Experiment 4 we 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. Keywords Attention . Multisensory processing . Audiovisual integration
The processes of sensation, perception, attention, and higher levels of cognitive processing have previously been found to be related to one another on numerous different time scales and sensory modalities. The process of audiovisual integration refers to the combination of sight with sound, whereas the capacity for audiovisual integration refers to an individual’s ability to appropriately integrate visual stimuli with sound (Welch & Warren, 1980). The capacity of audiovisual Electronic supplementary material The online version of this article (https://doi.org/10.3758/s13414-020-02062-7) contains supplementary material, which is available to authorized users. * Jonathan M. P. Wilbiks [email protected] 1
Department of Psychology, University of New Brunswick Saint John, 100 Tucker Park Road, P.O. Box 5050, Saint John, New Brunswick E2L 4L5, Canada
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