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Related Experiment Video

Updated: May 8, 2026

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities
07:13

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities

Published on: October 27, 2023

Optimal multimodal integration in spatial localization.

Martina Poletti1, David C Burr, Michele Rucci

  • 1Department of Psychology and Program in Neuroscience, Boston University, Boston, Massachusetts 02215, USA.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|August 30, 2013
PubMed
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Spatial updating during saccadic eye movements relies on combining visual input with extraretinal signals. This study reveals optimal multimodal integration for precise visual spatial representations.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • Saccadic eye movements are crucial for visual exploration but challenge spatial representation stability.
  • The precise role of extraretinal signals (afferent vs. efferent) in updating spatial awareness remains unclear.
  • Understanding how visual and extraretinal information is integrated is key to explaining spatial updating mechanisms.

Purpose of the Study:

  • To investigate how human observers update spatial representations after saccadic eye movements.
  • To determine the contributions of different extraretinal signals to spatial updating.
  • To examine the integration of retinal and extraretinal information during visual search.

Main Methods:

  • Developed a novel gaze-contingent search paradigm with controlled retinal stimulation.

Related Experiment Videos

Last Updated: May 8, 2026

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities
07:13

Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities

Published on: October 27, 2023

  • Assessed human observers' performance in locating previously fixated targets after varying numbers of saccades.
  • Analyzed localization accuracy and precision to differentiate updating mechanisms.

    • Main Results:

    • Localization accuracy for previously fixated targets remained unaffected by saccades.
    • Localization precision showed a nonlinear deterioration with increasing saccades.
    • Evidence suggests an optimal combination of retinal and extraretinal signals for spatial updating.

    Conclusions:

    • Spatial representation updating optimally integrates multimodal sensory information.
    • Both corollary discharge signals and eye proprioception contribute to updating spatial representations.
    • The findings elucidate the mechanisms underlying stable spatial awareness despite eye movements.