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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: Pain. 2016 Dec;157(12):2697–2708. doi: 10.1097/j.pain.0000000000000688

Fig. 8. Effect of lidocaine (4%, 200 nl) microinjected into the lateral PB on spontaneous firing of OFF-cells, ON-cells, and NEUTRAL-cells in RVM.

Fig. 8

OFF-cell firing was significantly increased (t12 = 3.77, p = 0.0027, n = 13), while ON-cell firing was reduced (t7 = 3.03, p = 0.0019, n = 8). NEUTRAL-cells did not respond to lateral PB block (t5 = 0.98, p = 0.37, n = 6). (PB injection was unilateral. Geometric mean with 95% confidence limits, *p < 0.05, **p < 0.01 compared to pre-block baseline using t-test for correlated means)