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Cortical activation in the early phase of the tonic stimulation that was stronger during electrical than thermal stimulation (contrast e-t (tpe-r)).
Diagonal arrows point to activation in the caudate, while the horizontal arrows point to the contralateral posterior insula. The figures are presented in neurological convention, the subjects´ right side being on the right side of the figure. The labels “right” and “left” refer to the stimulated side.
