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December 12, 2025Journal of VisionOpen Access

Presaccadic modulation of lateral interactions

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Authors

GMGabriela Mueller de MeloIPIsabella de Oliveira PitorriGRGustavo Rohenkohl

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Overview

Psychophysical task demonstrated target detection is influenced by saccade preparation, suggesting modulation of visual perception.

Key Points

  • The study aims to investigate how saccade preparation modulates lateral interactions within visual processing.
  • Participants completed a psychophysical task detecting Gabor targets among adjacent Gabors while preparing a saccade or maintaining fixation.
  • Flanker gratings were iso- or orthogonally oriented to targets at varying distances: 4λ, 8λ, and 16λ.
  • Contrast thresholds for target detection were estimated using a 3-down/1-up staircase procedure.
  • Target detection thresholds were higher with iso-oriented flankers at the shortest distance (4λ).
  • Lateral interactions were abolished at the largest distance (16λ).
  • Increased target suppression was observed at the intermediate distance (8λ) during the presaccadic period compared to fixation.

Cite This Study

Melo et al. (2025) studied this question.

synapsesocial.com/papers/6940190c2d562116f28f6407https://doi.org/10.1167/jov.25.14.7
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