Figure 11.

Overlap of receptive fields and movement fields in areas 1 and 2. A comparison of sensory receptive fields determined with electrophysiological recording techniques with LT-ICMS-evoked movements (movement fields) in the same penetration sites in case 14–132 (Fig. 6). (A) depicts the total area explored, with an enlarged inset showing example sites. (B) Comparisons of receptive fields (left) on the hand (1–3) and face (4) for sites in area 1 with evoked movements from the same locations (right). At some sites movements evoked included portions of the hand that were not part of the receptive field (e.g., B2), while at other sites the receptive field location and the body parts involved in the evoked movements had a closer correspondence (e.g., B3 and 4). For area 2, light squeezes to the hand evoked a response while LT-ICMS evoked D1–5 digit flexion (“grasp”).