35 The cortical potentials evoked by cutaneous application of a laser stimulus (laser evoked 36 potentials, LEP) often include potentials in the primary somatic sensory cortex (S1), which may 37 be located within the subdivisions of S1 including Brodmann areas 3A, 3B, 1 and 2. The precise 38 location of the LEP generator may clarify the pattern of nociceptive activation of human S1 by 39 painfu...