R. -D. Treede

Pain elicited by blunt pressure: neurobiological basis and clinical relevance

R. Treede, W. Magerl, R. Rolke, 2002, Pain.

The unpleasantness of tonic pain is encoded by the insular cortex

F. Birklein, P. Bartenstein, R. Treede, 2005, Neurology.