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dc.contributor.authorBarollo, Fabio
dc.contributor.authorFrioriksdottir, Run
dc.contributor.authorEdmunds, Kyle J
dc.contributor.authorKarlsson, Gunnar H
dc.contributor.authorSvansson, Halldor A
dc.contributor.authorHassan, Mahmoud
dc.contributor.authorFratini, Antonio
dc.contributor.authorPetersen, Hannes
dc.contributor.authorGargiulo, Paolo
dc.date.accessioned2020-08-24T11:05:54Z
dc.date.available2020-08-24T11:05:54Z
dc.date.issued2020-04-17
dc.date.submitted2020-08
dc.identifier.citationBarollo F, Frioriksdottir R, Edmunds KJ, et al. Postural Control Adaptation and Habituation During Vibratory Proprioceptive Stimulation: An HD-EEG Investigation of Cortical Recruitment and Kinematics. IEEE Trans Neural Syst Rehabil Eng. 2020;28(6):1381-1388. doi:10.1109/TNSRE.2020.2988585en_US
dc.identifier.pmid32310777
dc.identifier.doi10.1109/TNSRE.2020.2988585
dc.identifier.urihttp://hdl.handle.net/2336/621482
dc.descriptionTo access publisher's full text version of this article click on the hyperlink belowen_US
dc.description.abstractThe objective of the present work is to measure postural kinematics and power spectral variation from HD-EEG to assess changes in cortical activity during adaptation and habituation to postural perturbation. To evoke proprioceptive postural perturbation, vibratory stimulation at 85 Hz was applied to the calf muscles of 33 subjects over four 75-second stimulation periods. Stimulation was performed according to a pseudorandom binary sequence. Vibratory impulses were synchronized to high-density electroencephalography (HD-EEG, 256 channels). Changes in absolute spectral power (ASP) were analyzed over four frequency bands ( ∆ : 0.5-3.5 Hz; θ : 3.5-7.5 Hz; α : 7.5-12.5 Hz; β : 12.5-30 Hz). A force platform recorded torque actuated by the feet, and normalized sway path length (SPL) was computed as a construct for postural performance during each period. SPL values indicated improvement in postural performance over the trial periods. Significant variation in absolute power values (ASP) was found in assessing postural adaptation: an increase in θ band ASP in the frontal-central region for closed-eyes trials, an increase in θ and β band ASP in the parietal region for open-eyes trials. In habituation, no significant variations in ASP were observed during closed-eyes trials, whereas an increase in θ , α , and β band ASP was observed with open eyes. Furthermore, open-eyed trials generally yielded a greater number of significant ASP differences across all bands during both adaptation and habituation, suggesting that following cortical activity during postural perturbation may be up-regulated with the availability of visual feedback. These results altogether provide deeper insight into pathological postural control failure by exploring the dynamic changes in both cortical activity and postural kinematics during adaptation and habituation to proprioceptive postural perturbation.en_US
dc.language.isoenen_US
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,en_US
dc.relation.urlhttps://ieeexplore.ieee.org/document/9069925en_US
dc.titlePostural Control Adaptation and Habituation During Vibratory Proprioceptive Stimulation: An HD-EEG Investigation of Cortical Recruitment and Kinematics.en_US
dc.typeArticleen_US
dc.identifier.eissn1558-0210
dc.contributor.department1 ]‎ Reykjavik Univ, Inst Biomed & Neural Engn, IS-101 Reykjavik, Iceland Show more [ 2 ]‎ Reykjavik Univ, Dept Sci, Landspitali, IS-101 Reykjavik, Iceland Show more [ 3 ]‎ Aston Univ, Dept Biomed Engn, Birmingham B4 7ET, W Midlands, England Show more [ 4 ]‎ Reykjavik Univ, IS-101 Reykjavik, Iceland [ 5 ]‎ Univ Rennes, LTSI, F-35042 Rennes, France Show more [ 6 ]‎ Univ Iceland, Dept Anat, IS-101 Reykjavik, Iceland [ 7 ]‎ Akureyri Hosp, IS-600 Akureyri, Iceland [ 8 ]‎ Landspitali, Dept Sci, IS-101 Reykjavik, Icelanden_US
dc.identifier.journalIEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Societyen_US
dc.rights.accessClosed - Lokaðen_US
dc.departmentcodeRES12
dc.source.journaltitleIEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society
dc.source.volume28
dc.source.issue6
dc.source.beginpage1381
dc.source.endpage1388
dc.source.countryUnited States


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