Audio-visual integration during overt visual attention
Autor(en): | Quigley, Cliodhna Onat, Selim Harding, Sue Cooke, Martin Koenig, Peter |
Stichwörter: | CONVERGENCE; MULTISENSORY INTEGRATION; Ophthalmology | Erscheinungsdatum: | 2007 | Herausgeber: | INT GROUP EYE MOVEMENT RESEARCH | Journal: | JOURNAL OF EYE MOVEMENT RESEARCH | Volumen: | 1 | Ausgabe: | 2 | Zusammenfassung: | How do different sources of information arising from different modalities interact to control where we look? To answer this question with respect to real-world operational conditions we presented natural images and spatially localized sounds in (V)isual, Audiovisual (AV) and (A)uditory conditions and measured subjects' eye-movements. Our results demonstrate that eye-movements in AV conditions are spatially biased towards the part of the image corresponding to the sound source. Interestingly, this spatial bias is dependent on the probability of a given image region to be fixated (saliency) in the V condition. This indicates that fixation behaviour during the AV conditions is the result of an integration process. Regression analysis shows that this integration is best accounted for by a linear combination of unimodal saliencies. |
ISSN: | 19958692 |
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