Measurement of autonomic nervous system activity usually confines the researcher and participant to the laboratory, which may provide an intimidating environment to children. The VU University Ambulatory Monitoring System (VU-AMS) device can record cardiac autonomic control in any setting. The VU-AMS proved very amenable to testing in children.
van Dijk, A. E., van Lien, R., van Eijsden, M., Gemke, R. J. B. J., Vrijkotte, T. G. M., de Geus, E. J. Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children. J. Vis. Exp. (74), e50073, doi:10.3791/50073 (2013).