Eye dominance strength modulates the global effect on saccade accuracy
| Autor: | Tagu, Jérôme, Doré-Mazars, Karine, Vergilino-Perez, Dorine |
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| Přispěvatelé: | Tagu, Jérôme, Vision Action Cognition (VAC - EA 7326), Université Paris Descartes - Paris 5 (UPD5), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Niko Busch, Guido Hesselmann, Marianne Maertens, Florian Ostendorf, Martin Rolfs, Philipp Sterzer |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
[SCCO]Cognitive science
[SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior genetic structures [SCCO.PSYC]Cognitive science/Psychology [SCCO.PSYC] Cognitive science/Psychology [SDV.NEU.PC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior sense organs [SCCO] Cognitive science eye diseases |
| Zdroj: | 40th European Conference on Visual Perception (ECVP 2017) 40th European Conference on Visual Perception (ECVP 2017), Aug 2017, Berlin, Germany. Perception, ECVP 2017 Abstract, pp.96, 2017 |
| Popis: | International audience; The dominant eye is the one chosen to perform a monocular task. Vergilino-Perez et al. (2012) showed with binocular recordings that participants could exhibit weak or strong eye dominance. The dominant eye is known to be preferentially related to the ipsilateral primary visual cortex (V1). Recently, we have shown that for participants with strong eye dominance, the influence on saccade accuracy of a distractor proximal to the target ("global effect") is reduced in the hemifield controlateral to the dominant eye compared to the ipsilateral hemifield (Tagu et al., 2016). We concluded that for strong eye dominance, the relationship between dominant eye and ipsilateral V1 induces a better selection of the saccadic target in the hemifield controlateral to the dominant eye. Interestingly, this result was enhanced for strong left eye dominance and reduced for strong right eye dominance. We proposed this difference could be due to the co-occurrence of a leftward attentional bias giving more weight to the distractor because of the right hemispheric specialization for visuo-spatial attention. A way to test this interpretation is to dissociate the saccade target selection process linked to eye dominance from the leftward attentional bias. Here we examine the global effect as a function of saccade preparation duration across paradigms known to induce short (gap-200 and step) and long (overlap-600) saccade latencies. Preliminary results on 52 participants (i) confirm the controlateral advantage on saccade accuracy when eye dominance is strong (ii) show that both the saccade target selection and attentional bias increase with saccade latency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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