Medial septal cholinergic mediation of hippocampal theta rhythm induced by vagal nerve stimulation
Fig 8
The effect of MS gallamine injection on VNS-induced HPC field potential and related power/frequency (FFT) histogram.
(A) VNS was marked with a horizontal line. Parameters of VNS were marked below this line. Arrows indicate the power-frequency histograms calculated from analog examples of hippocampal field potentials taken pre-injection of gallamine (control) and 15 min post-injection of gallamine 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(2)).