The Relationship between Skin Conductance and Upright Stance Body Sway in Healthy Young Subjects SCL AND BODY SWAY

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Alpaslan Yilmaz


Skin conductance level, Postural sway, Anxiety


Study Objectives: State anxiety and arousal levels are known to affect skin conductance level, spontaneous fluctuations of skin conductance, and postural control. In this study, we aimed to investigate whether skin conductance level and spontaneous fluctuations of skin conductance are associated with postural sway. Methods: Skin conductance and postural sway were continuously recorded for two minutes from 25 male participants aged 19 to 25. Skin conductance was recorded from the palmar surface of the third and fourth fingers of the non-dominant hands of the participants. A force platform sized of 40x40cm was used to determine postural sway. Results:  No correlations were found between the number of spontaneous fluctuations number and any of body sway parameters. Our results indicated a linear relationship between the skin conductance and i) the root-mean-square of the body sway in the anteroposterior axis (r=0.486, p<0.05) and ii) the center of pressure sway area (r=0.519, p<0.05). Conclusion:  Our findings pointed out that increased skin conductance level leads imply a cause effect relationship is associated with increased body sway in anteroposterior axis and increased body sway area.

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[1] B. Bolmont, P. Gangloff, A. Vouriot, P. P. Perrin, Mood states and anxiety influence abilities to maintain balance control in healthy human subjects, Neurosci. Lett. 329 (2002) 96-100
[2] L.A. Brown, M.A. Polych, J.B. Doan, The effect of anxiety on the regulation of upright standing among younger and older adults, Gait & Posture 24 (2006) 397-405
[3] M. Wada, N. Sunaga, M. Nagai, Anxiety affects the postural sway of the antero-posterior axis in college students, Neurosci. Lett. 302 (2001) 157-159
[4] J.F. Stins, A. Ledept, C. Emck, E.H. Dokkum, P.J Beek, Patterns of postural sway in high anxious children, Behavioral and Brain Functions 5 (2009) 42
[5] C.D. Balaban, J.F. Thayer, Neurological bases for balance-anxiety links, Anxiety Disor. 15 (2001) 53-79
[6] H. Ohno, M. Wada, J. Saitoh, N. Sunaga, M. Nagai, The effect of anxiety on postural control in humans depends on visual information processing, Neurosci Lett. 364 (2009) 37-39
[7] W.H. Gage, R.J. Slick, M.A. Polych, N.C. McKenzie, L.A. Brown, The allocation of attention during locomotion is altered by anxiety, Exp Brain Res. 150 (2003) 385-394
[8] D.R. Davies, A. Krkovic, Skin-conductance, alpha-activity and vigilance, The American Journal of Psychology. 78 (1965) 304-306
[9] C.D. Frith, H.A. Allen, The skin conductance orienting response as an index of attention, Biological Psychology. 17 (1983) 27-39
[10] Y. Nagai, H.D. Critchley, E. Featherstone, M.R. Trimble, R.J. Dolan, Activity in ventromedial prefrontal cortex covaries with sympathetic skin conductance level: a physiological account of a “default mode” of brain function, NeuroImage. 22 (2004) 243-251
[11] H.D. Critchley, R. Elliot, C.J. Mathias, R.J. Dolan, Neural activity relating to generation and representation of galvanic skin conductance responses: a functional magnetic resonance imaging study, The Journal of Neurosci. 20(8) (2000) 3033-3040
[12] D.R. Bach, K.J. Friston, R.J. Dolan, Analytic measures for quantification of arousal from spontaneous skin conductance fluctuations, Int. J. Psychophysiol. 76 (2010) 52 - 57
[13] C. Suer, N. Dolu, C. Ozesmi, O. Sahin, A. Ulgen, The relation between skin conductance level and plus-maze behavior in male mice, Physiology & Behavior. 64 (1998) 573-576
[14] S.G. Hofmann, H.J. Kim, Anxiety goes under the skin: behavioral inhibition, anxiety and autonomic arousal in speech-anxious males, 40 (2006) 1441-1451
[15] M.H. Lader, Palmar skin conductance measures in anxiety and phobic states, Journal of Psychosomatic Research. 11 (1967) 271-281
[16] W.T. Roth, S. Doberenz, A. Dietel, A. Conrad, A. Mueller, E. Wollburg, A.E. Meuret, C.B. Taylor, S. Kim, Sympathetic activation in broadly generalized anxiety disorder, Journal of Psychiatric Research. 42(2008) 205-212
[17] G.T. Kim, M. Ferdjallah, G.F. Harris, Fast Computational Analysis of Sway Area Using Center of Pressure Data in Normal Children and Children with Cerebral Palsy, Am J Biomed Sci. 1(4) (2009) 364-372