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Article: A validation of neural co-activation as a measure of attentional focus in a postural task

TitleA validation of neural co-activation as a measure of attentional focus in a postural task
Authors
KeywordsAttentional focus
Postural control
Reinvestment
T3-Fz EEG coherence
Issue Date2016
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/gaitpost
Citation
Gait & Posture, 2016, v. 50, p. 229-231 How to Cite?
AbstractPostural threat can induce conscious involvement in movement control. This internal focus has been implicated in compromising attentional processing efficiency during postural control, leading to behavioral adaptations that might increase the risk of falling in the elderly. It is suggested that electroencephalography (EEG) coherence, or ‘communication’, between T3 (verbal-analytical) and Fz (motor-planning) regions may provide an objective measure of internal focus in learned movement skills. However, it is currently unknown whether this experimental technique can be applied to the control of gait and posture; skills which develop early in life, without the use of declarative knowledge/explicit verbal cues to guide performance. We validate the utility of the EEG T3-Fz coherence analysis in a postural task. A total of 24 young adults produced small voluntary swaying movements in medial-lateral or anterior-posterior direction under conditions that directed their attentional focus either internally or externally. Although EEG coherence was sensitive to voluntary changes in attentional focus, the lack of observed between-group (High/Low-trait-reinvestment) difference in coherence may suggest that younger adults cannot be assumed to utilize explicit verbal cues to control voluntary postural sway unless explicitly instructed to do so. As a result, while these results indicate that EEG T3-Fz is a valid technique for assessing attentional focus in postural tasks, our data do not support the clinical application of this method of analysis in providing an objective indication of trait-reinvestment in tasks involving voluntary postural sway.
Persistent Identifierhttp://hdl.handle.net/10722/230509
ISSN
2020 Impact Factor: 2.84
2015 SCImago Journal Rankings: 1.414
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorEllmers, T-
dc.contributor.authorMachado, G-
dc.contributor.authorWong, WLT-
dc.contributor.authorZhu, FF-
dc.contributor.authorWilliams, AM-
dc.contributor.authorYoung, WR-
dc.date.accessioned2016-08-23T14:17:27Z-
dc.date.available2016-08-23T14:17:27Z-
dc.date.issued2016-
dc.identifier.citationGait & Posture, 2016, v. 50, p. 229-231-
dc.identifier.issn0966-6362-
dc.identifier.urihttp://hdl.handle.net/10722/230509-
dc.description.abstractPostural threat can induce conscious involvement in movement control. This internal focus has been implicated in compromising attentional processing efficiency during postural control, leading to behavioral adaptations that might increase the risk of falling in the elderly. It is suggested that electroencephalography (EEG) coherence, or ‘communication’, between T3 (verbal-analytical) and Fz (motor-planning) regions may provide an objective measure of internal focus in learned movement skills. However, it is currently unknown whether this experimental technique can be applied to the control of gait and posture; skills which develop early in life, without the use of declarative knowledge/explicit verbal cues to guide performance. We validate the utility of the EEG T3-Fz coherence analysis in a postural task. A total of 24 young adults produced small voluntary swaying movements in medial-lateral or anterior-posterior direction under conditions that directed their attentional focus either internally or externally. Although EEG coherence was sensitive to voluntary changes in attentional focus, the lack of observed between-group (High/Low-trait-reinvestment) difference in coherence may suggest that younger adults cannot be assumed to utilize explicit verbal cues to control voluntary postural sway unless explicitly instructed to do so. As a result, while these results indicate that EEG T3-Fz is a valid technique for assessing attentional focus in postural tasks, our data do not support the clinical application of this method of analysis in providing an objective indication of trait-reinvestment in tasks involving voluntary postural sway.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/gaitpost-
dc.relation.ispartofGait & Posture-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectAttentional focus-
dc.subjectPostural control-
dc.subjectReinvestment-
dc.subjectT3-Fz EEG coherence-
dc.titleA validation of neural co-activation as a measure of attentional focus in a postural task-
dc.typeArticle-
dc.identifier.emailWong, WLT: wongtwl@hku.hk-
dc.identifier.emailZhu, FF: ffzhu@hku.hk-
dc.identifier.authorityWong, WLT=rp01823-
dc.identifier.authorityZhu, FF=rp02104-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1016/j.gaitpost.2016.09.001-
dc.identifier.pmid27653150-
dc.identifier.scopuseid_2-s2.0-84988428099-
dc.identifier.hkuros282439-
dc.identifier.hkuros261908-
dc.identifier.volume50-
dc.identifier.spage229-
dc.identifier.epage231-
dc.identifier.isiWOS:000387192600038-
dc.publisher.placeNetherlands-
dc.identifier.issnl0966-6362-

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