Journal
NEUROSCIENCE LETTERS
Volume 302, Issue 2-3, Pages 157-159Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/S0304-3940(01)01662-7
Keywords
anxiety; postural sway; vision
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To examine whether the postural balance is influenced by the degree of anxiety, body sway during orthostatic standing while gazing at a visual target was examined in college students. Students, physically and mentally healthy, were divided into two groups according to the degree of state anxiety; high anxiety group (HA) and low anxiety group (LA). A fast Fourier transform analysis of the postural sway in antero-posterior axis showed that frequency components of 0.02-0.21 Hz, reflecting vestibular inputs, were 16% greater and those of 2.02-10.0 Hz, reflecting somatosensory inputs, were 24% smaller in HA. These differences between HA and LA were abolished when the eyes were closed. It is concluded that the interactions of visual inputs with vestibular acid somatosensory inputs are influenced by anxiety. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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