Dissociating the impact of sensory and motor noise in human saccades

Pierre D Morel (1) , Pierre Baraduc (1)

1 ISC - Institut des Sciences Cognitives

Eyes rarely land exactly on target. Here we investigated to which extent sensory (visual) or motor (execution) noise in neural signals determines the imprecision of saccades. We compared the variability of saccades recorded in human subjects to the predictions of a stochastic feedback optimal model of the oculomotor system. From the spatiotemporal development of the variability along the trajectories, we derived plausible estimates of the noise in sensory and motor signals.

Mots clés: Others

Domaines: Neurosciences [q-bio.NC]; Neurosciences

Pierre D Morel, Pierre Baraduc. Dissociating the impact of sensory and motor noise in human saccades. Cinquième conférence plénière française de Neurosciences Computationnelles, "Neurocomp'10", Aug 2010, Lyon, France. ⟨hal-00553434⟩