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Anticipatory Postural Adjustments During Joint Action Coordination

Overview
Journal Sci Rep
Specialty Science
Date 2019 Aug 25
PMID 31444405
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Abstract

There is a current claim that humans are able to effortlessly detect others' hidden mental state by simply observing their movements and transforming the visual input into motor knowledge to predict behaviour. Using a classical paradigm quantifying motor predictions, we tested the role of vision feedback during a reach and load-lifting task performed either alone or with the help of a partner. Wrist flexor and extensor muscle activities were recorded on the supporting hand. Early muscle changes preventing limb instabilities when participants performed the task by themselves revealed the contribution of the visual input in postural anticipation. When the partner performed the unloading, a condition mimicking a split-brain situation, motor prediction followed a pattern evolving along the task course and changing with the integration of successive somatosensory feedback. Our findings demonstrate that during social behaviour, in addition to self-motor representations, individuals cooperate by continuously integrating sensory signals from various sources.

References
1.
Paulignan Y, Dufosse M, Hugon M, MASSION J . Acquisition of co-ordination between posture and movement in a bimanual task. Exp Brain Res. 1989; 77(2):337-48. DOI: 10.1007/BF00274991. View

2.
Hari R, Forss N, Avikainen S, Kirveskari E, Salenius S, Rizzolatti G . Activation of human primary motor cortex during action observation: a neuromagnetic study. Proc Natl Acad Sci U S A. 1998; 95(25):15061-5. PMC: 24575. DOI: 10.1073/pnas.95.25.15061. View

3.
Hodges J, Spatt J, Patterson K . "What" and "how": evidence for the dissociation of object knowledge and mechanical problem-solving skills in the human brain. Proc Natl Acad Sci U S A. 1999; 96(16):9444-8. PMC: 17802. DOI: 10.1073/pnas.96.16.9444. View

4.
Avikainen S, Forss N, Hari R . Modulated activation of the human SI and SII cortices during observation of hand actions. Neuroimage. 2002; 15(3):640-6. DOI: 10.1006/nimg.2001.1029. View

5.
Witney A, Goodbody S, Wolpert D . Predictive motor learning of temporal delays. J Neurophysiol. 1999; 82(5):2039-48. DOI: 10.1152/jn.1999.82.5.2039. View