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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Anesthesiology. 2012 May;116(5):1116–1123. doi: 10.1097/ALN.0b013e3182518be3

Figure 2. Baseline responding for electrical stimulation of the paraventricular nucleus of the hypothalamus (PVN) and medial forebrain bundle (MFB) for control and spinal nerve-ligated (SNL) rats.

Figure 2

Frequency-response curves for baseline responding were generated by averaging the second and third components preceding saline administration (prior to any drug treatments). The y-axis indicates the number of self-stimulations (0.5-sec) per 60 seconds for each frequency (x-axis). Data shown are averages across control (n=11, n=7) and SNL (n=12, n=9) rats with PVN and MFB electrodes, respectively. Average current intensities during baseline responding were 246.82 (17.51) uA and 215.71 (26.87) uA for control and 234.58 (19.59) uA and 208.33 (18.86) uA for SNL rats with PVN and MFB electrodes, respectively.