ArticleJournal of neurophysiology2016
On the nature of unintentional action: a study of force/moment drifts during multifinger tasks.
Article in Journal of neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- Stability of movement by a multi-element system: drifts and random walk within and orthogonal to the uncontrolled manifold during multi-finger force production.Experimental brain research · 2026Review
- Force drifts and matching errors in the lower extremities: implications for the control and perception of foot force.Experimental brain research · 2024Article
- Force matching: motor effects that are not reported by the actor.Experimental brain research · 2024Article
- Expectation of volitional arm movement has prolonged effects on the grip force exerted on a pinched object.Experimental brain research · 2022Article
- Unintentional force drifts across the human fingers: implications for the neural control of finger tasks.Experimental brain research · 2022Article
- One more time about motor (and non-motor) synergies.Experimental brain research · 2021Review
- Perturbation-induced fast drifts in finger enslaving.Experimental brain research · 2021Article
- Unveiling the neuromechanical mechanisms underlying the synergistic interactions in human sensorimotor system.Scientific reports · 2021Article
- Production and Perception of Intentional and Unintentional Actions.Journal of human kinetics · 2021Article
- On the origin of finger enslaving: control with referent coordinates and effects of visual feedback.Journal of neurophysiology · 2020Article
- What do people match when they try to match force? Analysis at the level of hypothetical control variables.Experimental brain research · 2020Article
- Age-related deficits in bilateral motor synergies and force coordination.BMC geriatrics · 2019Article
- Case Studies in Neuroscience: The central and somatosensory contributions to finger interdependence and coordination: lessons from a study of a "deafferented person".Journal of neurophysiology · 2019Article
- Quantitative analysis of multi-element synergy stabilizing performance: comparison of three methods with respect to their use in clinical studies.Experimental brain research · 2019Article
- Individual preferences in motor coordination seen across the two hands: relations to movement stability and optimality.Experimental brain research · 2019Article
- Feedforward and Feedback Control Share an Internal Model of the Arm's Dynamics.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018Article
- Real-time slacking as a default mode of grip force control: implications for force minimization and personal grip force variation.Journal of neurophysiology · 2018Article
- Stability of hand force production. II. Ascending and descending synergies.Journal of neurophysiology · 2018Article
- Stability of steady hand force production explored across spaces and methods of analysis.Experimental brain research · 2018Article
- Performance drifts in two-finger cyclical force production tasks performed by one and two actors.Experimental brain research · 2018Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
We explored the origins of unintentional changes in performance during accurate force production in isometric conditions seen after turning visual feedback off. The idea of control with referent spatial coordinates suggests that these phenomena could result from drifts of the referent coordinate for the effector. Subjects performed accurate force/moment production tasks by pressing with the fingers of a hand on force sensors. Turning the visual feedback off resulted in slow drifts of both total force and total moment to lower magnitudes of these variables; these drifts were more pronounced in the right hand of the right-handed subjects. Drifts in individual finger forces could be in different direction; in particular, fingers that produced moments of force against the required total moment showed an increase in their forces. The force/moment drift was associated with a drop in the index of synergy stabilizing performance under visual feedback. The drifts in directions that changed performance (non-motor equivalent) and in directions that did not (motor equivalent) were of about the same magnitude. The results suggest that control with referent coordinates is associated with drifts of those referent coordinates toward the corresponding actual coordinates of the hand, a reflection of the natural tendency of physical systems to move toward a minimum of potential energy. The interaction between drifts of the hand referent coordinate and referent orientation leads to counterdirectional drifts in individual finger forces. The results also demonstrate that the sensory information used to create multifinger synergies is necessary for their presence over the task duration.
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