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Eye movements and brain oscillatory responses during serial and free viewing of emotional images| old_uid | 11305 |
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| title | Eye movements and brain oscillatory responses during serial and free viewing of emotional images |
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| start_date | 2012/04/26 |
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| schedule | 13h30-15h30 |
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| online | no |
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| location_info | niveau - 2 |
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| details | A 13h30 pour le début de la présentation sur l'article : "The impact of salient advertisements on reading and attention on Web Pages" Jaana Simola.
Accès : http://www.risc.cnrs.fr/images/cite-des-sciences-acces.jpg |
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| summary | Co-registration of eye movements and the electroencephalogram (EEG) were used to assess the processing of emotional images. Previous studies have shown that 4 – 6 Hz brain oscillatory responses emerge as a response to serially presented emotional images. We recorded eye movements and the EEG simultaneously while 11 participants viewed images with varying emotional valence. Sets of four images were presented either serially or in parallel. An ‘emotional’ set included one image with a high positive or negative valence content among neutral images. A ‘neutral’ set comprised four neutral images. The participants were asked to indicate which picture - if any - was emotional and to rate that image on the valence and arousal dimensions. In the parallel (free viewing) condition, the EEG responses were analyzed time-locked to the first gaze on an image. In both presentation conditions, the results showed enhanced 4 – 6 Hz brain oscillatory responses at ~500 ms from image onset or from the first gaze on a negative image compared to the presentation of a neutral image. The results indicate that brain oscillatory responses can be analyzed time-locked to eye movements, and that similar responses emerge during serial and free viewing when the emotional stimulus was attended. |
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| responsibles | <not specified> |
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