Sounds can boost the awareness of visual events through attention without cross-modal integration
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- dc.contributor.author Soto-Faraco, Salvador, 1970-ca
- dc.contributor.author Papai, Marta Szabinaca
- dc.date.accessioned 2017-02-28T10:04:22Z
- dc.date.available 2017-02-28T10:04:22Z
- dc.date.issued 2017
- dc.description.abstract Cross-modal interactions can lead to enhancement of visual perception, even for visual events below awareness. However, the underlying mechanism is still unclear. Can purely bottom-up cross-modal integration break through the threshold of awareness? We used a binocular rivalry paradigm to measure perceptual switches after brief flashes or sounds which, sometimes, co-occurred. When flashes at the suppressed eye coincided with sounds, perceptual switches occurred the earliest. Yet, contrary to the hypothesis of cross-modal integration, this facilitation never surpassed the assumption of probability summation of independent sensory signals. A follow-up experiment replicated the same pattern of results using silent gaps embedded in continuous noise, instead of sounds. This manipulation should weaken putative sound-flash integration, although keep them salient as bottom-up attention cues. Additional results showed that spatial congruency between flashes and sounds did not determine the effectiveness of cross-modal facilitation, which was again not better than probability summation. Thus, the present findings fail to fully support the hypothesis of bottom-up cross-modal integration, above and beyond the independent contribution of two transient signals, as an account for cross-modal enhancement of visual events below level of awareness.
- dc.description.sponsorship This study was funded by a Ministerio de Educación, Cultura y Deporte, Ref. FPU/1206471 to MSP, and ERC Starting Grant, Ref. 263145, Spanish Ministry of Science and Innovation (PSI2016-75558-P), and Comissionat per a Universitats i Recerca del DIUE- Generalitat de Catalunya (2014SGR856) to SS-F.
- dc.format.mimetype application/pdfca
- dc.identifier.citation Pápai MS, Soto-Faraco S. Sounds can boost the awareness of visual events through attention without cross-modal integration. Sci Rep. 2017;7:Article 41684. DOI: 10.1038/srep41684
- dc.identifier.doi http://dx.doi.org/10.1038/srep41684
- dc.identifier.issn 2045-2322
- dc.identifier.uri http://hdl.handle.net/10230/28147
- dc.language.iso eng
- dc.publisher Nature Publishing Groupca
- dc.relation.ispartof Scientific Reports. 2017;7:Article 41684.
- dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/263145
- dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/PSI2016-75558-P
- dc.rights © The Author(s) 2017. Published online on http://dx.doi.org/10.1038/srep41684. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by/4.0/
- dc.subject.keyword Attention
- dc.subject.keyword Perception
- dc.title Sounds can boost the awareness of visual events through attention without cross-modal integrationca
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion