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Temporal expectation hastens sensory encoding but does not affect evidence quality

View ORCID ProfileRuud L. van den Brink, Peter R. Murphy, Kobe Desender, Nicole de Ru, Sander Nieuwenhuis
doi: https://doi.org/10.1101/2020.01.30.926337
Ruud L. van den Brink
Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, GermanyDepartment of Psychology, Leiden University, Leiden, the Netherlands
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  • ORCID record for Ruud L. van den Brink
  • For correspondence: r.van-den-brink@uke.de
Peter R. Murphy
Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, GermanyDepartment of Psychology, Leiden University, Leiden, the Netherlands
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Kobe Desender
Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, GermanyDepartment of Experimental Psychology, Ghent University, Belgium
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Nicole de Ru
Department of Psychology, Leiden University, Leiden, the Netherlands
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Sander Nieuwenhuis
Department of Psychology, Leiden University, Leiden, the NetherlandsLeiden institute for Brain and Cognition, Leiden, the Netherlands
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ABSTRACT

The ability to predict the timing of forthcoming events, known as temporal expectation, has a strong impact on human information processing. Although there is growing consensus that temporal expectations enhance perception, it remains unclear whether they affect the decision process itself, or non-decisional (sensory / motor) processes. Here, participants used predictive auditory cues to anticipate the timing of low-contrast visual imperative stimuli. Modelling of the behavioral data indicated that temporal expectations speeded up non-decisional processes but had no effect on decision formation. Electrophysiological recordings confirmed and extended this result: temporal expectations hastened the onset of a neural signature of decision formation, consistent with faster sensory encoding, but had no effect on its build-up rate. Anticipatory alpha-band power was modulated by temporal expectation, and co-varied with intrinsic trial-by-trial variability in behavioral and neural signatures of sensory encoding speed. These findings highlight how temporal predictions optimize our interaction with unfolding sensory events.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license.
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Posted January 31, 2020.
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Temporal expectation hastens sensory encoding but does not affect evidence quality
Ruud L. van den Brink, Peter R. Murphy, Kobe Desender, Nicole de Ru, Sander Nieuwenhuis
bioRxiv 2020.01.30.926337; doi: https://doi.org/10.1101/2020.01.30.926337
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Temporal expectation hastens sensory encoding but does not affect evidence quality
Ruud L. van den Brink, Peter R. Murphy, Kobe Desender, Nicole de Ru, Sander Nieuwenhuis
bioRxiv 2020.01.30.926337; doi: https://doi.org/10.1101/2020.01.30.926337

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