Journal
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY
Volume -, Issue -, Pages -Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/17470218231173925
Keywords
Multisensory integration; spatial attention; cue predictability; exogenous orienting; endogenous orienting
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This study investigated the interaction between spatial attention and multisensory integration (MSI) through two experiments. The results showed that exogenous orienting, induced by cue directionality, decreased MSI, while endogenous orienting, induced by cue predictability, enhanced MSI. The study discussed the role of spatial orienting and spatial attention bias in modulating MSI processes.
Previous studies have separately found that exogenous orienting decreases multisensory integration (MSI), while endogenous orienting enhances MSI. It is currently unclear, however, why the two orientations have opposite effects on MSI. In the current study, we investigated the interaction between spatial attention and MSI in two experiments based on the cue-target paradigm. Experiment 1 separated exogenous and endogenous orienting to investigate the effect of spatial attention on MSI by varying the predictability of the cue. Experiment 2 further explored the effect of endogenous orienting on MSI. We found that exogenous orienting induced by the directionality of the cue decreased MSI, while endogenous orienting induced by the predictability of the cue enhanced MSI. The role of spatial orienting need and spatial attention bias in the modulation of MSI by exogenous and endogenous orienting was discussed. The present study sheds new light on how spatial attention modulates MSI processes.
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