Published estimates of group differences in multisensory integration are inflated

John F Magnotti and Michael S Beauchamp

PLOS ONE, 2018, vol. 13, issue 9, 1-13

Abstract: A common measure of multisensory integration is the McGurk effect, an illusion in which incongruent auditory and visual speech are integrated to produce an entirely different percept. Published studies report that participants who differ in age, gender, culture, native language, or traits related to neurological or psychiatric disorders also differ in their susceptibility to the McGurk effect. These group-level differences are used as evidence for fundamental alterations in sensory processing between populations. Using empirical data and statistical simulations tested under a range of conditions, we show that published estimates of group differences in the McGurk effect are inflated when only statistically significant (p

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0202908

DOI: 10.1371/journal.pone.0202908

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