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Effect before cause: supramodal recalibration of sensorimotor timing.

By James Heron, James Vincent Michael Hanson and David J. Whitaker


YesBackground: Our motor actions normally generate sensory events, but how do we know which events were self generated\ud and which have external causes? Here we use temporal adaptation to investigate the processing stage and generality of our\ud sensorimotor timing estimates.\ud Methodology/Principal Findings: Adaptation to artificially-induced delays between action and event can produce a\ud startling percept┬┐upon removal of the delay it feels as if the sensory event precedes its causative action. This temporal\ud recalibration of action and event occurs in a quantitatively similar manner across the sensory modalities. Critically, it is\ud robust to the replacement of one sense during the adaptation phase with another sense during the test judgment.\ud Conclusions/Significance: Our findings suggest a high-level, supramodal recalibration mechanism. The effects are well\ud described by a simple model which attempts to preserve the expected synchrony between action and event, but only when\ud causality indicates it is reasonable to do so. We further demonstrate that this model successfully characterises related\ud adaptation data from outside the sensorimotor domain

Topics: Perception, Adaptation, Time, Recalibration, Motor, Multisensory, Sensorimotor delays, Visuo-motor responses, REF 2014
Publisher: Public Library of Science
Year: 2009
DOI identifier: 10.1371/journal.pone.0007681
OAI identifier:
Provided by: Bradford Scholars

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