caa a22 4500 445352752 CHVBK 20180317142849.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00221-011-2867-9 doi (NATIONALLICENCE)springer-10.1007/s00221-011-2867-9 Arousal, valence and their relative effects on postural control [Elektronische Daten] [Brian Horslen, Mark Carpenter] There is mounting evidence to suggest that emotional state can influence postural control. Emotions are often qualified using dimensions such as valence (pleasantness) and arousal. While affective pictures have been used to detail the effects of valence on postural control, the influence of arousal independently, or in combination with valence, has yet to be investigated. This is an important oversight because there are multiple sensory and neuromuscular mechanisms that are known to be sensitive to arousal and to contribute to postural control. As such, the current study is the first to independently manipulate valence and arousal through affective pictures and to examine their independent effects on postural control. Subjects stood quietly for 90s long blocks while watching affective pictures, grouped by normative ratings of arousal (high and low) and valence (pleasant and unpleasant), and during which centre of pressure (COP) and electrodermal activity (EDA) were collected. EDA and anterior-posterior COP frequency were both increased with arousal, but not by valence. The postural effects observed in this study parallel those typically seen in other highly arousing situations, such as standing at the edge of an elevated platform or during performance evaluation. Therefore, we argue that arousal is a mediator of postural control and should be considered as a potential confound when testing or diagnosing subjects in clinical or experimental settings. Springer-Verlag, 2011 Postural control nationallicence Centre of pressure nationallicence Arousal nationallicence Valence nationallicence Emotion nationallicence Horslen Brian School of Kinesiology, The University of British Columbia, 6108 Thunderbird Blvd., V6T 1Z4, Vancouver, BC, Canada aut Carpenter Mark School of Kinesiology, The University of British Columbia, 6108 Thunderbird Blvd., V6T 1Z4, Vancouver, BC, Canada aut Experimental Brain Research Springer-Verlag 215/1(2011-11-01), 27-34 0014-4819 215:1<27 2011 215 221 https://doi.org/10.1007/s00221-011-2867-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00221-011-2867-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Horslen Brian School of Kinesiology, The University of British Columbia, 6108 Thunderbird Blvd., V6T 1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 700 1- Carpenter Mark School of Kinesiology, The University of British Columbia, 6108 Thunderbird Blvd., V6T 1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 773 0- Experimental Brain Research Springer-Verlag 215/1(2011-11-01), 27-34 0014-4819 215:1<27 2011 215 221 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer