AUTHOR=Colonius Hans , Wolff Felix Hermann , Diederich Adele TITLE=Trimodal Race Model Inequalities in Multisensory Integration: I. Basics JOURNAL=Frontiers in Psychology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2017.01141 DOI=10.3389/fpsyg.2017.01141 ISSN=1664-1078 ABSTRACT=
The race model inequality has become an important testing tool for the analysis of redundant signals tasks. In crossmodal reaction time experiments, the strength of violation of the inequality is taken as measure of multisensory integration occurring beyond probability summation. Here we extend previous results on trimodal race model inequalities and specify the underlying context invariance assumptions required for their validity. Some simulation results comparing the race model and the superposition model for Erlang distributed random variables illustrate the trimodal inequalities.