The need for previous knowledge does not render quantitative sensory testing a "failure" but part of a larger picture of the relationship between nociception and pain. Issue 4 (April 2021) - Vollert, Jan; Forstenpointner, Julia; Enax-Krumova, Elena K.; Gierthmühlen, Janne; Tölle, Thomas; Treede, Rolf-Detlef; Baron, Ralf