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Article Dans Une Revue Scientific Reports Année : 2019

Face perception influences the programming of eye movements


Previous studies have shown that face stimuli elicit extremely fast and involuntary saccadic responses toward them, relative to other categories of visual stimuli. In the present study, we further investigated to what extent face stimuli influence the programming and execution of saccades examining their amplitude. We performed two experiments using a saccadic choice task: two images (one with a face, one with a vehicle) were simultaneously displayed in the left and right visual fields of participants who had to initiate a saccade toward the image (Experiment 1) or toward a cross in the image (Experiment 2) containing a target stimulus (a face or a vehicle). Results revealed shorter saccades toward vehicle than face targets, even if participants were explicitly asked to perform their saccades toward a specific location (Experiment 2). Furthermore, error saccades had smaller amplitude than correct saccades. Further analyses showed that error saccades were interrupted in mid-flight to initiate a concurrently-programmed corrective saccade. Overall, these data suggest that the content of visual stimuli can influence the programming of saccade amplitude, and that efficient online correction of saccades can be performed during the saccadic choice task.
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hal-02012777 , version 1 (06-11-2020)



Louise Kauffmann, Carole Peyrin, Alan Chauvin, Lea Entzmann, Camille Breuil, et al.. Face perception influences the programming of eye movements. Scientific Reports, 2019, 9, pp.560 (2019). ⟨10.1038/s41598-018-36510-⟩. ⟨hal-02012777⟩
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