Towards Accurate In Vivo Autonomic Measurement

The Autonomic (or Vegetative) Nervous System (ANS) was initially characterized nearly two thousand years ago by the Roman anatomist Galen. The sympathetic aspect of the system was first characterized in the mid-17th century by Thomas Willis and his colleagues; the term ‘sympathetic nerve’ was popularized by Jacobus Winslow in 1732. The function of the s…