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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Anesthesiology. 2009 Jun;110(6):1327–1334. doi: 10.1097/ALN.0b013e3181a16337

Figure 3.

Figure 3

Original recording from an experiment in a chronically instrumented rat (anesthesia experiment). Typical response to pentobarbital.

A. Baseline condition. During wakefulness, the genioglossus muscle showed a strong phasic activity in this rat.

B. 5 minutes after administration of pentobarbital 10 mg. Phasic and tonic muscle activities were markedly lower.

C. 5 minutes after administration of pentobarbital 20 mg (same rat as shown in A.) Genioglossus and neck muscle activity are markedly decreased; note that the activity of the latter is relatively preserved compared with the genioglossus.

EMG=electromyogram, MTA=moving time average.