Change in task conditions leads to changes in intermittency in intermittent feedback control employed by CNS in control of human stance

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dc.contributor.author Dash, Ranjita
dc.contributor.author Palanthandalam-Madapusi, Harish J.
dc.coverage.spatial United Kingdom
dc.date.accessioned 2022-04-19T06:30:49Z
dc.date.available 2022-04-19T06:30:49Z
dc.date.issued 2022-04
dc.identifier.citation Dash, Ranjita and Palanthandalam-Madapusi, Harish J., "Change in task conditions leads to changes in intermittency in intermittent feedback control employed by CNS in control of human stance", Biological Cybernetics, DOI: 10.1007/s00422-022-00927-8, Apr. 2022. en_US
dc.identifier.issn 0340-1200
dc.identifier.issn 1432-0770
dc.identifier.uri https://doi.org/10.1007/s00422-022-00927-8
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/7652
dc.description.abstract Event-driven intermittent feedback control is a form of feedback control in which the corrective control action is only initiated intermittently when the variables of interest exceed certain threshold criteria. It has been reported in the literature that the CNS uses an event-driven intermittent control strategy to stabilize the human upright posture. However, whether the threshold criteria may change under different postural task conditions is not yet well understood. We employ a numerical study with inverted pendulum models and an experimental study with 51 young healthy individuals (13 females and 38 males; age: 27.8 ± 6.5 years) with stabilogram-diffusion, temporal and spectral analysis applied to COP (Center of Pressure) trajectories measured from these experiments to examine this aspect. The present study provides compelling evidence that inducing a natural arm swing during quiet stance appears to lead to higher sensory dead zone in neuronal control reflecting higher intermittency thresholds in active feedback control and a corresponding lower sensory dependence. Beyond the obvious scientific interest in understanding this aspect of how CNS controls the standing posture, an investigation of the said control strategy may subsequently help uncover insights about how control of quiet stance degrades with age and in diseased conditions. Additionally, such an understanding will also be of interest to the humanoid robotics community as it may lead to insights leading to improving control strategies for posture control in robots.
dc.description.statementofresponsibility by Ranjita Dash and Harish J. Palanthandalam-Madapusi
dc.language.iso en_US en_US
dc.publisher Springer en_US
dc.subject Human quiet stance en_US
dc.subject Center of pressure (COP) en_US
dc.subject Intermittent feedback control en_US
dc.subject Central nervous system (CNS) en_US
dc.subject Posturography en_US
dc.title Change in task conditions leads to changes in intermittency in intermittent feedback control employed by CNS in control of human stance en_US
dc.type Article en_US
dc.relation.journal Biological Cybernetics


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