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Updated: Mar 12, 2026
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Cross-Modal Multivariate Pattern Analysis
Published on: November 9, 2011
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Matching locations is not just matching sensory representations
Irene A Kuling1, Marieke C W van der Graaff2, Eli Brenner2
1Department of Human Movement Sciences, MOVE Research Institute Amsterdam, Vrije Universiteit, Amsterdam, The Netherlands. i.a.kuling@vu.nl.
Experimental Brain Research
|November 4, 2016
Summary
People"s ability to match unseen finger locations is inconsistent. Errors vary by hand posture and movement direction, suggesting complex sensory transformations influence spatial perception.
Area of Science:
- Neuroscience
- Human Perception
- Motor Control
Background:
- Humans exhibit systematic errors when localizing unseen index fingers relative to visual targets or the contralateral hand.
- Understanding the consistency and underlying mechanisms of these spatial matching errors is crucial for cognitive neuroscience.
Purpose of the Study:
- To investigate the consistency of spatial matching errors between different hands and postures.
- To determine if spatial matching errors are invertible and consistent across different task configurations.
Main Methods:
- Experiment 1: Participants matched unseen index finger positions to visual targets, with variations in hand posture (above/below a board).
- Experiment 2: Compared matching errors in tasks involving moving the finger to a target versus moving a target to the finger, and matching both index fingers to a common target.
Main Results:
- Spatial matching errors showed low consistency between hands and were significantly influenced by hand posture.
- Matching errors were not invertible, and matching both index fingers to a common target yielded different inter-hand mismatches compared to direct finger-to-finger matching.
- These findings indicate that errors are not solely due to static sensory representation mismatches.
Conclusions:
- Spatial localization errors are dynamic and depend on the specific movement and sensory transformations involved.
- The results challenge simple models of spatial representation and highlight the role of motor commands in shaping perception.
- Further research into context-dependent sensory transformations is warranted to fully explain spatial matching inaccuracies.
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