Early visual signatures and benefits of intra-saccadic motion streaks

verfasst von

Richard Schweitzer, Thomas Seel, Jörg Raisch, Martin Rolfs

Abstract

Eye movements routinely induce motion streaks as they shift visual projections across the retina at high speeds. To investigate the visual consequences of intra-saccadic motion streaks, we co-registered eye tracking and EEG while gaze-contingently shifting target objects during saccades, presenting either continuous, 'streaky' or apparent, step-like motion in four directions. We found significant reductions of secondary saccade latency, as well as improved decoding of the post-saccadic target location from the EEG signal when motion streaks were available. These signals arose as early as 50 ms after saccade offset and had a clear occipital topography. Using a physiologically plausible visual processing model, we provide evidence that the target's motion trajectory is coded in orientation-selective channels and that speed of gaze correction was linked to the visual dynamics arising from the combination of saccadic and target motion, providing a parsimonious explanation of the behavioral benefits of intra-saccadic motion streaks.

Organisationseinheit(en)

Institut für Mechatronische Systeme

Externe Organisation(en)

Università degli Studi di Trento
Humboldt-Universität zu Berlin (HU Berlin)
Technische Universität Berlin
Bernstein Center for Computational Neuroscience Berlin (BCCN Berlin)

Typ

Artikel

Journal

PLoS Computational Biology

Band

21

Seiten

e1013544

ISSN

1553-734X

Publikationsdatum

29.09.2025

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Ökologie, Evolution, Verhaltenswissenschaften und Systematik, Ökologie, Modellierung und Simulation, Molekularbiologie, Genetik, Zelluläre und Molekulare Neurowissenschaften, Theoretische Informatik und Mathematik

Elektronische Version(en)

https://doi.org/10.1371/journal.pcbi.1013544 (Zugang: Offen)