Sensorimotor temporal recalibration within and across limbs

Yarrow, Kielan, Sverdrup-Stueland, Ingvild, Roseboom, Warrick and Arnold, Derek H. (2013) Sensorimotor temporal recalibration within and across limbs. Journal of Experimental Psychology: Human Perception and Performance, 39 6: 1678-1689. doi:10.1037/a0032534

Author Yarrow, Kielan
Sverdrup-Stueland, Ingvild
Roseboom, Warrick
Arnold, Derek H.
Title Sensorimotor temporal recalibration within and across limbs
Journal name Journal of Experimental Psychology: Human Perception and Performance   Check publisher's open access policy
ISSN 0096-1523
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1037/a0032534
Open Access Status Not yet assessed
Volume 39
Issue 6
Start page 1678
End page 1689
Total pages 12
Place of publication Washington, DC United States
Publisher American Psychological Association
Language eng
Subject 3205 Experimental and Cognitive Psychology
2802 Behavioral Neuroscience
1201 Architecture
Abstract Deciding precisely when we have acted is challenging, as actions involve a train of neural events spread across both space and time. Repeated delays between actions and consequent events can result in a shift, such that immediate feedback can seem to precede the causative act. Here we examined which neurocognitive representations are affected during such sensorimotor temporal recalibration, by testing if the effect generalizes across limbs and whether it might reflect altered decision criteria for temporal judgments. Hand or foot adaptation phases were interspersed with simultaneity judgments about actions involving the same or opposite limb. Shifts in the distribution of participants' simultaneity responses were quantified using a detection-theoretic model, where a shift of both boundaries together gives a stronger indication that the effect is not simply a result of decision bias. By demonstrating that temporal recalibration occurs in the foot as well as the hand, we confirmed that it is a robust motor phenomenon: Both low and high boundaries shifted reliably in the same-limb conditions. However, in cross-limb conditions only the high boundary shifted reliably. These two patterns are interpreted to reflect a genuine change in how the time of action is represented, and a timing criterion shift, respectively.
Keyword Action
Temporal judgment
Temporal recalibration
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Psychology Publications
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