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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: J Neurosurg. 2009 Oct;111(4):701. doi: 10.3171/2009.3.JNS0990

Fig. 5.

Fig. 5

Upper: Graph showing that VL thalamic stimulation (100 Hz, 10-second duration) at different intensities (0.5–2 mA) evoked progressively larger increases in local extracellular concentrations of adenosine. Lower: Graph showing that increasing VL thalamic stimulation frequency from 50 to 100 Hz at 1 mA also evoked progressively larger increases in local extracellular concentrations of adenosine. Black bars on the lower left side in each panel represent the duration of stimulation, and vertical lines above these bars are recording artifacts that occurred during stimulation.