Figure 2
From: Linking neuronal brain activity to the glucose metabolism
Experimental data. Effects of transcranial direct current stimulation (red) on cerebral ATP/Pi, blood glucose, and insulin during a hyperinsulinemic-euglycemic glucose clamp condition as compared with the sham stimulation (black). The top right figure shows relative changes of cerebral ATP/Pi in proportion to matched sham condition values. Data show a biphasic course with an initial drop by trend followed by a rise. The gray background indicates the stimulation interval. Data represent mean values +/- standard error of mean (Figure reproduced from [25]).