Abstract
In a recent article, N. Bien, S. ten Oever, R. Goebel, and A. T. Sack (2012) used event-related potentials to investigate the consequences of crossmodal correspondences (the “natural” mapping of features, or dimensions, of experience across sensory modalities) on the time course of neural information processing. Then, by selectively lesioning the right intraparietal cortex using transcranial magnetic stimulation, these researchers went on to demonstrate (for the first time) that it is possible to temporarily eliminate the effect of crossmodal congruency on multisensory integration (specifically on the spatial ventriloquism effect). These results are especially exciting given the possibility that the cognitive neuroscience methodology utilized by Bien et al. (2012) holds for dissociating between putatively different kinds of crossmodal correspondence in future research.
Highlights
The last couple of years have seen a marked growth of interest in the topic of crossmodal correspondences
Crossmodal correspondences have been defined as a tendency for a sensory feature, or attribute, in one modality, either physically present or merely imagined, to be matched with a sensory feature in another sensory modality
Crossmodal correspondences affect behavior in a wide range of experimental paradigms—everything from the redundant target paradigm through to the Implicit Association Test. How should such phenomena be explained at the computational/neural level? At the computational level, Bayesian coupling priors appear to provide a powerful tool to model the effects of crossmodal correspondences on multisensory integration (Ernst, 2007; Parise & Spence, 2009; Spence, 2011)
Summary
The last couple of years have seen a marked growth of interest in the topic of crossmodal correspondences (see Marks, 2004; Spence, 2011, for reviews). Bayesian coupling priors appear to provide a powerful tool to model the effects of crossmodal correspondences on multisensory integration (Ernst, 2007; Parise & Spence, 2009; Spence, 2011).
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