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Poster De Conférence Année : 2016

On the robustness of the measurement of eye dominance strength based on saccadic parameters

Résumé

It is well known that the saccadic system presents multiple asymmetries. Notably, saccadic peak velocities are higher for temporal saccades, for centripetal saccades and for the abducting eye. However, we have shown that eye dominance strength influences the naso-temporal asymmetry (Vergilino-Perez et al., 2012): while participants with weak eye dominance exhibit the classical naso-temporal asymmetry, participants with strong eye dominance exhibit higher peak velocities for a given saccade direction whichever the recorded eye. The current study tests the robustness of this classification by varying eye departure position, involving centrifugal and centripetal saccades, and by comparing saccades made by the abducting eye and the adducting one. Preliminary analyses on saccadic peak velocities indicate that our classification of eye dominance strength is found whichever the eye departure position. More precisely, participants with weak eye dominance exhibit all the classical asymmetries whichever the eye departure position, in contrast to participants with strong eye dominance that exhibit only the centripetal-centrifugal asymmetry. These results show (1) the robustness of our classification of participants based on eye dominance strength with analyses of saccadic peak velocities and suggest (2) that a strong eye dominance overrides the classical naso-temporal and abducting-adducting asymmetries.
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hal-01651789 , version 1 (29-11-2017)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Jérôme Tagu, Karine Doré-Mazars, Judith Vergne, Christelle Lemoine-Lardennois, Dorine Vergilino-Perez. On the robustness of the measurement of eye dominance strength based on saccadic parameters. 39th European Conference on Visual Perception, Aug 2016, Barcelona, Spain. , 39th European Conference on Visual Perception, 45 (2_suppl), pp.306, 2016, ⟨10.1177/0301006616671273⟩. ⟨hal-01651789⟩
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