Oculomotor inhibition reflects temporal expectations

NeuroImage
Roy AmitShlomit Yuval-Greenberg

Abstract

The accurate extraction of signals out of noisy environments is a major challenge of the perceptual system. Forming temporal expectations and continuously matching them with perceptual input can facilitate this process. In humans, temporal expectations are typically assessed using behavioral measures, which provide only retrospective but no real-time estimates during target anticipation, or by using electrophysiological measures, which require extensive preprocessing and are difficult to interpret. Here we show a new correlate of temporal expectations based on oculomotor behavior. Observers performed an orientation-discrimination task on a central grating target, while their gaze position and EEG were monitored. In each trial, a cue preceded the target by a varying interval ("foreperiod"). In separate blocks, the cue was either predictive or non-predictive regarding the timing of the target. Results showed that saccades and blinks were inhibited more prior to an anticipated regular target than a less-anticipated irregular one. This consistent oculomotor inhibition effect enabled a trial-by-trial classification according to interval-regularity. Additionally, in the regular condition the slope of saccade-rate and drift were shall...Continue Reading

Citations

Jan 17, 2019·Journal of Vision·Antonio FernándezMarisa Carrasco
Mar 8, 2020·Behavior Research Methods·Rachel N DenisonMarisa Carrasco
Jul 16, 2020·Nature Communications·Dekel AbelesShlomit Yuval-Greenberg
Jul 6, 2020·Nature Communications·Stephanie BaddeMarisa Carrasco
Dec 10, 2020·Scientific Reports·Noam Tal-Perry, Shlomit Yuval-Greenberg
Feb 12, 2021·Journal of Vision·Rakesh Nanjappa, Robert M McPeek
Feb 3, 2021·Proceedings of the National Academy of Sciences of the United States of America·Chris ScholesNeil W Roach
Jan 9, 2021·Journal of Neural Engineering·Darisy Guanlinovich ZhaoSergei L Shishkin
May 14, 2021·Attention, Perception & Psychophysics·Noam Tal-Perry, Shlomit Yuval-Greenberg
Dec 22, 2021·Psychophysiology·Hossein AbbasiAnna Schubö

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