Fig. 4

Phasic (a) and tonic (b) genioglossus electrogram amplitude (arbitrary units, a.u.; dotted line corresponds to baseline EMGgg) quantified after ICV injections of various concentrations of dronabinol (100, 10, 1 or 0.1 μg; N = 6 for each dose) or vehicle (DMSO; N = 6). There were no significant differences in phasic (p = 0.48) or tonic (p = 0.37) EMGgg in the treatment groups. Data (mean ± SEM) were analyzed using mixed model analysis with a repeated/fixed measure (ICV treatment)