== Data were collected during penetrations of the hand representation in area 3b with 0
== Data were collected during penetrations of the hand representation in area 3b with 0.34 mm diameter linear array multicontact electrodes (24 contacts; 0.10.3 M impedence; Neurotrak) that record from all cortical layers simultaneously (Fig. to a single digit is represented. == Introduction == Studies of the primate hand representation in primary somatosensory cortical area 3b have consistently identified separate representations of each digit (Powell MP470 (MP-470, Amuvatinib) and Mountcastle, 1959b;Jones and Powell, 1969;Paul et al., 1972;Sur et al., 1982;Pons et al., 1987;Kaas, 1993). This detailed surface representation is a cornerstone of hierarchical organization in the somatosensory system, providing a substrate for specific computational functions of higher order cortices (Burton and Sinclair, 1996;Moore et al., 1999). The capacity for radical spatial reorganization in the area 3b digit map shows clearly…