We describe the methods for continuous monitoring of the autonomic nervous system under resting and challenge conditions with 18 month old children. Results revealed that this protocol can produce meaningful physiological responses in both branches of the autonomic nervous system and elicit significant individual variability in patterns of responses.
Bush, N. R., Caron, Z. K., Blackburn, K. S., Alkon, A. Measuring Cardiac Autonomic Nervous System (ANS) Activity in Toddlers - Resting and Developmental Challenges. J. Vis. Exp. (108), e53652, doi:10.3791/53652 (2016).