Journalartikel

Jahr der Veröffentlichung: 2012

Seiten: 4955-4961

Zeitschrift: Proceedings of the Royal Society B: Biological Sciences

Bandnummer: 279

Heftnummer: 1749

ISSN: 0962-8452

DOI Link: https://doi.org/10.1098/rspb.2012.2132

Verlag: The Royal Society

Abstract: 
Visual perception can be modulated by sounds. A drastic example of this is the sound-induced flash illusion: when a single flash is accompanied by two bleeps, it is sometimes perceived in an illusory fashion as two consecutive flashes. However, there are strong individual differences in proneness to this illusion. Some participants experience the illusion on almost every trial, whereas others almost never do. We investigated whether such individual differences in proneness to the sound-induced flash illusion were reflected in structural differences in brain regions whose activity is modulated by the illusion. We found that individual differences in proneness to the illusion were strongly and significantly correlated with local grey matter volume in early retinotopic visual cortex. Participants with smaller early visual cortices were more prone to the illusion. We propose that strength of auditory influences on visual perception is determined by individual differences in recurrent connections, cross-modal attention and/or optimal weighting of sensory channels.

Harvard-Zitierstil: de Haas, B., Kanai, R., Jalkanen, L. and Rees, G. (2012) Grey matter volume in early human visual cortex predicts proneness to the sound-induced flash illusion, Proceedings of the Royal Society B: Biological Sciences, 279(1749), pp. 4955-4961. https://doi.org/10.1098/rspb.2012.2132

APA-Zitierstil: de Haas, B., Kanai, R., Jalkanen, L., & Rees, G. (2012). Grey matter volume in early human visual cortex predicts proneness to the sound-induced flash illusion. Proceedings of the Royal Society B: Biological Sciences. 279(1749), 4955-4961. https://doi.org/10.1098/rspb.2012.2132