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. 2018 Nov 5;13(11):e0206532. doi: 10.1371/journal.pone.0206532

Fig 5. The effect of MS procaine injection on VNS-induced HPC field potential and related power-frequency (FFT) histogram.

Fig 5

(A) VNS is marked with a horizontal line. The parameters of VNS are marked below this line. Arrows indicate the power-frequency histograms calculated from the analog examples of hippocampal field potentials taken pre-injection of procaine (control), 15 and 60 min post-injection of procaine during 10 s VNS. Calibration: 1s, 150 μV. (B) Statistical analysis (Mann-Whitney U test) of mean ± SEM power and frequency (VNS (1) vs VNS(3)).