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- W1574154445 startingPage "1597" @default.
- W1574154445 abstract "Previous studies on crossmodal spatial orienting typically used simple and stereotyped stimuli in the absence of any meaningful context. This study combined computational models, behavioural measures and functional magnetic resonance imaging to investigate audiovisual spatial interactions in naturalistic settings. We created short videos portraying everyday life situations that included a lateralised visual event and a co‐occurring sound, either on the same or on the opposite side of space. Subjects viewed the videos with or without eye‐movements allowed (overt or covert orienting). For each video, visual and auditory saliency maps were used to index the strength of stimulus‐driven signals, and eye‐movements were used as a measure of the efficacy of the audiovisual events for spatial orienting. Results showed that visual salience modulated activity in higher‐order visual areas, whereas auditory salience modulated activity in the superior temporal cortex. Auditory salience modulated activity also in the posterior parietal cortex, but only when audiovisual stimuli occurred on the same side of space (multisensory spatial congruence). Orienting efficacy affected activity in the visual cortex, within the same regions modulated by visual salience. These patterns of activation were comparable in overt and covert orienting conditions. Our results demonstrate that, during viewing of complex multisensory stimuli, activity in sensory areas reflects both stimulus‐driven signals and their efficacy for spatial orienting; and that the posterior parietal cortex combines spatial information about the visual and the auditory modality. Hum Brain Mapp 35:1597–1614, 2014 . © 2013 Wiley Periodicals, Inc." @default.
- W1574154445 created "2016-06-24" @default.
- W1574154445 creator A5040704077 @default.
- W1574154445 creator A5075404324 @default.
- W1574154445 creator A5079975504 @default.
- W1574154445 date "2013-04-24" @default.
- W1574154445 modified "2023-10-05" @default.
- W1574154445 title "Spatial orienting in complex audiovisual environments" @default.
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- W1574154445 doi "https://doi.org/10.1002/hbm.22276" @default.
- W1574154445 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3786006" @default.
- W1574154445 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23616340" @default.
- W1574154445 hasPublicationYear "2013" @default.
- W1574154445 type Work @default.