Ever since Hans Berger reported his discovery of brain electrical activity in humans as measured by the electroencephalogram (EEG) (Berger, 1929), scientific and clinical applications of EEG has proliferated and achieved several milestones. One of the main advantages of EEG measures is its time resolution in milliseconds, a scale at which many of the key sensory, motor and cognitive phenomena take place at the neural level. The neuroelectric potentials as recorded from the scalp are measured and analyzed depending upon whether the recordings are made during task-related activity or in situations which are not characterized by the occurrence of a specific event. The ongoing (stimulus- and time independent) neuroelectric activity using scalp electrodes in a continuous fashion during a specific mental state (i.e., eyes-closed relaxed state, eyes-open steady state, meditation, hypnosis, sleep, coma, and other normal/altered states of consciousness) is the EEG (cf. Kamarajan and Porjesz, 2012) [see Fig. 1, top panel]. Common measures of EEG include, but not limited to, absolute and relative power as well as coherence in specific frequency bands, such as delta (1-4 Hz), theta (4-8
