Effects of preparatory period on anticipatory postural control and contingent negative variation associated with rapid arm movement in standing posture

Gait & Posture
Kaoru Maeda, Katsuo Fujiwara

Abstract

We investigated CNS motor preparation state and anticipatory postural muscle activation while subjects performed bilateral rapid arm movement at various intervals between warning and response stimulus (preparatory period) during standing. Motor preparation state was evaluated by integrated values of the late components of the contingent negative variation (late CNV), obtained by averaging electroencephalograms during the last 100ms of the preparatory period. For quantifying anticipatory postural muscle activation, we measured the onset of burst activity in postural muscles (lumbar paraspinal, biceps femoris, and gastrocnemius) with respect to anterior deltoid activity and integrated values of preceding activation. Subjects performed the arm movement with minimal delay in the warning stimulus-response stimulus-motor response paradigm under preparatory periods of 2.0, 3.0 and 3.5s. Late CNV did not differ between the 2.0-s and 3.0-s period, but was significantly smaller in the 3.5-s period than in the 2.0-s period, suggesting difficulty in predicting response timing in the 3.5-s period. No change was found on integrated values of preceding activations of postural muscles. Burst onset of all postural muscles significantly preceded...Continue Reading

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Citations

Feb 1, 2007·Experimental Brain Research·Rémy CuisinierVincent Nougier
Nov 29, 2011·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Chie Yaguchi, Katsuo Fujiwara
May 10, 2011·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Katsuo FujiwaraAida Mammadova
Nov 27, 2015·Neuroscience·Jessy Parokaran VargheseWilliam E McIlroy
Mar 24, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Xuezhu ShenHidehito Tomita
Jul 16, 2008·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Hidehito Tomita, Katsuo Fujiwara
Apr 10, 2008·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Jesse V JacobsFay B Horak
Sep 22, 2007·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Katsuo FujiwaraKenji Kunita
Feb 3, 2016·Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology·John K Chan, Bradley J Monk

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