Figure 7

Behavioural, physiological, spinal cord and brain activity recorded in response to an experimental noxious stimulus.
Recordings of (A) facial expression; (B) heart rate; (C) oxygen saturation; (D) EMG activity recorded from the biceps femoris of the stimulated leg and (E,F) EEG activity at the Cz electrode site are shown during application of a 128 mN stimulus. (The stimuli was applied at time = 0 seconds and the facial expression screen shots are shown at −10, −5, 0, 5 and 10 seconds).