Unveiling the neuromechanical mechanisms underlying the synergistic interactions in human sensorimotor system

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dc.contributor.authorHonarvar, S.
dc.contributor.authorKim, C.
dc.contributor.authorDiaz-Mercado, Y.
dc.contributor.authorKoh, K.
dc.contributor.authorKwon, H. J.
dc.contributor.authorKiemel, T.
dc.contributor.authorCaminita, M.
dc.contributor.authorHahn, J. O.
dc.contributor.authorShim, J. K.
dc.date.accessioned2022-06-13T17:30:04Z
dc.date.available2022-06-13T17:30:04Z
dc.date.issued2021-01-08
dc.descriptionPartial funding for Open Access provided by the UMD Libraries' Open Access Publishing Fund.
dc.description.abstractMotor synergies are neural organizations of a set of redundant motor effectors that interact with one another to compensate for each other’s error and ensure the stabilization of a performance variable. Recent studies have demonstrated that central nervous system synergistically coordinates its numerous motor effectors through Bayesian multi-sensory integration. Deficiency in sensory synergy weakens the synergistic interaction between the motor effectors. Here, we scrutinize the neuromechanical mechanism underlying this phenomenon through spectral analysis and modeling. We validate our model-generated results using experimental data reported in the literature collected from participants performing a finger force production task with and without tactile feedback (manipulated through injection of anesthetic in fingers). Spectral analysis reveals that the error compensation feature of synergies occurs only at low frequencies. Modeling suggests that the neurophysiological structures involving short-latency back-coupling loops similar to the well-known Renshaw cells explain the deterioration of synergy due to sensory deprivation.en_US
dc.description.urihttps://doi.org/10.1038/s41598-020-80420-z
dc.identifierhttps://doi.org/10.13016/eu6w-6xhc
dc.identifier.citationHonarvar, S., Kim, C., Diaz-Mercado, Y. et al. Unveiling the neuromechanical mechanisms underlying the synergistic interactions in human sensorimotor system. Sci Rep 11, 203 (2021).en_US
dc.identifier.urihttp://hdl.handle.net/1903/28666
dc.language.isoen_USen_US
dc.publisherSpringer Natureen_US
dc.relation.isAvailableAtSchool of Public Healthen_us
dc.relation.isAvailableAtKinesiologyen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.titleUnveiling the neuromechanical mechanisms underlying the synergistic interactions in human sensorimotor systemen_US
dc.typeArticleen_US

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