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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Am J Geriatr Psychiatry. 2016 Jan 12;24(5):374–378. doi: 10.1016/j.jagp.2015.12.012

Figure 1.

Figure 1

HF-HRV response over 60 minutes cognitive tasks by dividing MF to high (n = 6) vs. low (n = 13) level using a cut-off score = 12 for display purpose.