Effect before cause: supramodal recalibration of sensorimotor timing.
Effect before cause: supramodal recalibration of sensorimotor timing.
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DOI:
10.1371/journal.pone.0007681
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发表时间:
2009-11-05
期刊:
影响因子:
3.7
通讯作者:
Whitaker D
中科院分区:
文献类型:
--
作者:
Heron J;Hanson JV;Whitaker D
Our motor actions normally generate sensory events, but how do we know which events were self generated and which have external causes? Here we use temporal adaptation to investigate the processing stage and generality of our sensorimotor timing estimates. Adaptation to artificially-induced delays between action and event can produce a startling percept—upon removal of the delay it feels as if the sensory event precedes its causative action. This temporal recalibration of action and event occurs in a quantitatively similar manner across the sensory modalities. Critically, it is robust to the replacement of one sense during the adaptation phase with another sense during the test judgment. Our findings suggest a high-level, supramodal recalibration mechanism. The effects are well described by a simple model which attempts to preserve the expected synchrony between action and event, but only when causality indicates it is reasonable to do so. We further demonstrate that this model successfully characterises related adaptation data from outside the sensorimotor domain.
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