Direct Evidence of Plasticity within Human Primary Motor and Somatosensory Cortices of Patients with Glioblastoma

Figure 2

Plasticity, distant recruitment. The yellow box highlights the same portion of the left postcentral gyrus. This figure demonstrates distant recruitment plasticity of Patient 1. At surgery 1, there was complete activation of the exposed postcentral gyrus (Points A-E). At surgery 2, stimulation could no longer elicit function in the identical region of the postcentral gyrus. However, Patient 1 had no sensory deficits at surgery 2. Thus, the function that had been in the postcentral gyrus at surgery 1 had reorganized distally (outside of the operative field) by surgery 2 to preserve sensory function. This is a prototype of distant recruitment plasticity.