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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Int J Psychophysiol. 2013 Oct 31;91(3):186–193. doi: 10.1016/j.ijpsycho.2013.10.015

Figure 1. Example of Autonomate’s SCR amplitude estimation with overlapping responses.

Figure 1

(A) Candidate SCR is detected by examining the first order temporal derivative S′ up to time L for contiguous sections above threshold U µS/s for at least w s. (B) Candidate SCR is split by finding a sequence of zero crossings in second order temporal derivative S″Crossings where S′ is increasing are labeled A and crossings where S′ is decreasing are labeled B. A pattern of A-B-A crossings indicates an inflection point where a candidate SCR should be split at point B. Candidate SCRs are indicated with thick black line superimposed on raw skin conductance signal S. Zero crossings are indicated with dashed lines.