Nathan has a new publication in a special issue on multisensory processing in Experimental Brain Research. We showed that audiovisual integration is enhanced for information that is presented far from the observer as compared to audiovisual information that is presented close by. Changes in distance and in stimulus effectiveness both contributed to the increase in integration in far space.
Van der Stoep, N., Van der Stigchel, S., Nijboer, T. C. W., & Van der Smagt, M. J. (in press). Audiovisual integration in near and far space: Effects of changes in distance and stimulus effectiveness. Experimental Brain Research.