Brain Scans etc
Figure 2.11. Three-dimensional reconstruction of the left hemisphere of the human brain showing increased activity in the supramarginal gyrus, the central sensorimotor cortex, and the supplementary motor cortex during writing. Based upon a positron emission tomography study by Petrides et al. (1995). CS: central sulcus; IPS: intraparietal sulcus; SMA: supplementary motor area; SF: Sylvian fissure.