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Related Experiment Video

Updated: Mar 30, 2026

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Perceptual task induces saccadic adaptation by target selection.

Alexander C Schütz1, David Souto2

  • 1Abteilung Allgemeine Psychologie, Justus-Liebig-Universität Gießen Gießen, Germany ; Allgemeine und Biologische Psychologie, Philipps-Universität Marburg Marburg, Germany.

Frontiers in Human Neuroscience
|November 6, 2015
PubMed
Summary
This summary is machine-generated.

Top-down signals from perceptual tasks drive saccadic adaptation, primarily through target selection. This adaptation involves immediate and gradual error correction, influenced by task difficulty and repetition.

Keywords:
attentionreinforcement learningsaccadic adaptationtarget selectionvisual perception

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Ophthalmology

Background:

  • Saccadic adaptation, the modification of eye movements, can be triggered by various error signals.
  • Previous research indicated that perceptual tasks can induce saccadic adaptation without bottom-up retinal errors.

Purpose of the Study:

  • To investigate the top-down mechanisms underlying saccadic adaptation induced by perceptual tasks.
  • To determine if visibility, feedback reliability, or target selection mediates this adaptation.

Main Methods:

  • Participants performed a visual discrimination task with targets at eccentric locations.
  • Experiments manipulated task difficulty, feedback validity, and target selection instructions.
  • Saccade amplitude data were analyzed using a two-state model for error correction.

Main Results:

  • Perceptual tasks reliably induced saccadic adaptation, independent of feedback reliability.
  • Adaptation was dependent on top-down target selection, absent without specific instructions.
  • Task difficulty influenced immediate error correction, while repetition enhanced gradual error correction.

Conclusions:

  • Saccadic adaptation driven by perceptual tasks is mediated by top-down target selection.
  • The study dissociates immediate and gradual error correction components of adaptation.
  • Top-down target selection within a larger object is the likely mechanism for perceptual-task-induced saccadic adaptation.