 PLOT: Dr. Thorne is (or at least claims to be) one of the doctors  who cut off Peytons pain receptors, leading to his enhanced  strength. Yet, despite familiarity with this technique and its side  effects (familiar enough to reverse it), she cannot duplicate the  altered adrenaline in Rookers thugs simply by performing the  procedure on them (or at least some poor sap they dont have to hunt  down first).