twenty-eight chronic headache sufferers of three headache types ( migraine , tension and combined migraine-tension ) selected on the basis of explicit inclusion and exclusion criteria and matched on five demographic characteristics were assessed in a headache and non-headache state on a number of psychophysiological measures ( frontalis , forearm and neck emg ; cephalic vasomotor response ; hand surface temperature ; heart rate and skin resistance level ) and a number of stimulus conditions ( baseline , self-control , cognitive and physical stressors ) .
C0149931
migraine
C0018681
headache