Autonomic and neural correlates of dysregulated arousal in severe traumatic brain injury |
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Authors: | Jacqueline A Rushby Alana C Fisher Skye McDonald Anne Murphy Simon Finnigan |
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Institution: | 1. School of Psychology, University of New South Wales, Sydney, NSW 2052, Australia;2. UQ Centre for Clinical Research, University of Queensland, QLD, Australia |
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Abstract: | Severe traumatic brain injury (TBI) in adults is associated with abnormalities in arousal and emotional responsivity, which are observed physiologically, behaviourally and via self-report measures. While an accurate measure of physiological arousal is debated, , and have consistently shown an inverse relationship between skin conductance level (SCL), and mean alpha power (alpha) during an eyes-closed resting condition (EC), accompanied by an increase in SCL and corresponding decrease in alpha during eyes-open (EO). Thus, alpha may provide a novel index of autonomic arousal. This study aimed to elucidate the neural and autonomic correlates of arousal disturbances in TBI. |
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Keywords: | EEG alpha power Skin conductance level Traumatic brain injury Arousal |
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