Walker et al paper on module activation/coherence approach to QEEG

Walker, Kozlowski, and Lawson, A Modular Activation/Coherence Approach to Evaluating Clinical/QEEG Correlation and for Guiding Neurofeedback Training: Modular Insufficiencies, Modular Excesses, Disconnections, and Hyperconnections, Journal of Neurotherapy, 11(1) 25-44.

This article explains in detail the role of the brain locations and 10-20 sites in brain function, and their roles in activation and connectivity-related tasks.