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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: J Psychiatr Res. 2017 Dec 28;102:123–131. doi: 10.1016/j.jpsychires.2017.12.018

Figure 2.

Figure 2

Real tVNS was applied on the concha area where there is a rich vagus nerve distribution. Sham tVNS was applied at the superior scapha (outer ear margin midpoint) where there is no vagus nerve distribution.