Fig. 6:

The total concentration range of striatal glucose and lactate fluctuations evoked in response to each stimulation condition. (a) A representative trace depicting the initial increase and subsequent decrease in extracellular glucose and lactate concentrations evoked by a 60-Hz stimulation delivering 240-pulses. (b) The total range in extracellular glucose availability reflects the increased metabolic demand elicited by more intense stimulations. Extracellular glucose concentrations fluctuated over a larger range than those of lactate in response to the strongest stimulation (*p < 0.05 - ****p < 0.0001).