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Related Experiment Video

Updated: Jun 28, 2026

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine
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Published on: October 27, 2016

Conceptual biases explain distortion differences between hand and objects in localization tasks.

Aurelie Saulton1, Heinrich H Bülthoff1, Stephan de la Rosa1

  • 1Max Planck Institute for Biological Cybernetics.

Journal of Experimental Psychology. Human Perception and Performance
|April 4, 2017
PubMed
Summary
This summary is machine-generated.

Perceptual distortions in hand localization tasks may stem from general false beliefs about landmark locations, not just body-specific models. Similar distortions occur for hands and objects, suggesting a common underlying mechanism.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Perception

Background:

  • Proprioceptive hand localization tasks reveal perceptual distortions.
  • These distortions were previously linked to body schema and somatotopic cortical maps.
  • The role of conceptual biases in these distortions remains unclear.

Purpose of the Study:

  • To investigate if conceptual biases contribute to hand localization distortions.
  • To compare distortions in hand and object localization tasks.
  • To determine if distortions are body-specific or general.

Main Methods:

  • Experiment 1: Assessed hand distortions after correcting for conceptual bias of knuckles.
  • Experiment 2: Assessed hand distortions by locating landmarks without conceptual bias.
  • Compared hand and object localization performance.

Main Results:

  • Hand distortions were partly driven by conceptual biases about landmark locations.
  • Similar distortion magnitudes were observed for hands and objects.
  • Correcting for conceptual bias reduced, but did not eliminate, hand distortions.

Conclusions:

  • Localization task distortions are not specific to the body.
  • General conceptual biases can influence hand localization accuracy.
  • Similar perceptual distortions may affect both hand and object localization.