Fig. 1. (A ) Architecture of a microelectrode array used to record local field potentials (LFP). (B ) Coronal diagram illustrating the location in ventroposterolateral thalamic nuclei (VPL) (left ) and primary somatosensory cortex (SI) (right ) of the LFP recording sites (dark dots ). Numbers represent the distance (in millimeters) relative to bregma.20.