7th Annual Meeting of the International Multisensory Research Forum
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Tobias Andersen

Early Maximum Likelihood Integration of rapid flashes and beeps revisited
Single Paper Presentation

Tobias Andersen
Laboratoire Psychologie de la Perception, CNRS & Université Paris 5

     Abstract ID Number: 68
     Full text: Not available
     Last modified: March 16, 2006
     Presentation date: 06/19/2006 10:00 AM in Hamilton Building, Foyer
     (View Schedule)

Abstract
One rapid flash presented with two tone beeps can be perceived as two flashes. We have previously presented Early Maximum Likelihood Integration as an optimal model for the multisensory information processing underlying this and some related illusions [Andersen, TS, Tiippana K, and Sams M; Neurosci Lett. 2005; 380(1-2):155-60]. Here we reformulate and simplify Early MLI employing translation and scaling invariance of the internal representation of the number of perceived flashes. We validate this new version of Early MLI using the likelihood ratio test. We also formulate and test a model where the multisensory interactions are entirely based on response bias and show that this model cannot account for the multisensory interactions as well as Early MLI.

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