Effects of neck flexion on discriminative and cognitive processing in anticipatory postural control during bilateral arm movement

Neuroscience Letters
Katsuo FujiwaraAida Mammadova

Abstract

We investigated the effect of neck flexion on discriminative and cognitive processing in postural control during bilateral arm movement while standing, using event-related potential (ERP) and electromyogram. Fourteen healthy subjects flexed their arms to the target stimuli with a 20% probability in neck resting and flexion positions. Amplitude and latency of N2 and P3, anterior deltoid (AD) reaction time, onset time of postural muscles with respect to AD activation, and peak amplitude and latency of all muscles were measured. With neck flexion, N2 and P3 amplitudes increased, N2 and P3 latencies and AD reaction time shortened, and onset times of all postural muscles became earlier. No significant differences in peak amplitude and latency of each muscle were found between neck positions. Significant positive correlations were found in changes with neck flexion between P3 latency and AD reaction time, and between N2 latency and onset time of erector spinae. These suggest that with neck flexion, attention allocation to discriminative and cognitive processing increased, and the processing speed increased with shortening of reaction time in focal muscles. In addition, the onset time of postural muscles became earlier without changin...Continue Reading

References

Apr 1, 1977·Electroencephalography and Clinical Neurophysiology·R SimsonW Ritter
Feb 9, 2000·European Journal of Applied Physiology·K FujiwaraH Toyama
Nov 12, 2005·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·David E J Linden
Sep 22, 2007·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Katsuo FujiwaraKenji Kunita
Mar 24, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Xuezhu ShenHidehito Tomita
Nov 20, 2009·The International Journal of Neuroscience·Katsuo FujiwaraNaoe Furune
May 10, 2011·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Katsuo FujiwaraAida Mammadova
Nov 29, 2011·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Chie Yaguchi, Katsuo Fujiwara

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Citations

Jan 13, 2018·Journal of Physiological Anthropology·Kenji KunitaTakeo Kiyota

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