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dc.contributor.authorvan de Kamp, C
dc.contributor.authorGawthrop, PJ
dc.contributor.authorGollee, H
dc.contributor.authorLakie, M
dc.contributor.authorLoram, ID
dc.identifierARTN 55
dc.identifier.citationvan de Kamp, C., Gawthrop, P. J., Gollee, H., Lakie, M. & Loram, I. D. (2013). Interfacing sensory input with motor output: does the control architecture converge to a serial process along a single channel?. FRONTIERS IN COMPUTATIONAL NEUROSCIENCE, 7 (APR 2013),
dc.descriptionC1 - Journal Articles Refereed
dc.description.abstractModular organization in control architecture may underlie the versatility of human motor control; but the nature of the interface relating sensory input through task-selection in the space of performance variables to control actions in the space of the elemental variables is currently unknown. Our central question is whether the control architecture converges to a serial process along a single channel? In discrete reaction time experiments, psychologists have firmly associated a serial single channel hypothesis with refractoriness and response selection [psychological refractory period (PRP)]. Recently, we developed a methodology and evidence identifying refractoriness in sustained control of an external single degree-of-freedom system. We hypothesize that multi-segmental whole-body control also shows refractoriness. Eight participants controlled their whole body to ensure a head marker tracked a target as fast and accurately as possible. Analysis showed enhanced delays in response to stimuli with close temporal proximity to the preceding stimulus. Consistent with our preceding work, this evidence is incompatible with control as a linear time invariant process. This evidence is consistent with a single-channel serial ballistic process within the intermittent control paradigm with an intermittent interval of around 0.5 s. A control architecture reproducing intentional human movement control must reproduce refractoriness. Intermittent control is designed to provide computational time for an online optimization process and is appropriate for flexible adaptive control. For human motor control we suggest that parallel sensory input converges to a serial, single channel process involving planning, selection, and temporal inhibition of alternative responses prior to low dimensional motor output. Such design could aid robots to reproduce the flexibility of human control.
dc.subjectMotor Control; Expanding Knowledge in Engineering
dc.titleInterfacing sensory input with motor output: does the control architecture converge to a serial process along a single channel?
dc.typeJournal Article
melbourne.peerreviewPeer Reviewed
melbourne.affiliationThe University of Melbourne
melbourne.affiliation.departmentElectrical And Electronic Engineering
melbourne.source.titleFrontiers in Computational Neuroscience
melbourne.source.issueAPR 2013
dc.rights.licenseCC BY
melbourne.contributor.authorGawthrop, Peter
melbourne.fieldofresearch420703 Motor control
melbourne.seocode280110 Expanding knowledge in engineering
melbourne.accessrightsAccess this item via the Open Access location

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