ABSTRACT
To serve as an index of the function of a spatially distributed neural network, the EEG must be recorded from multiple measurement positions distributed over the scalp, resulting in a number of different measured signals. For routine applications, the measurement positions are arranged according to an international standard called the 10-20 system (Jasper, 1958; see Figure 4.3). is standardized system facilitates the comparison and interpretation of EEG from dierent recording sessions and/or patients. e 10-20 system comprises 19 scalp electrodes and 2 ear electrodes. Accordingly, modern EEG devices record at least 21 dierent EEG signals, referred to as channels. For advanced applications, systems with 32 channels or even more (up to 512) are on the market. e American Electroencephalographic Society
References ........................................................................................................70 Additional Recommendations, Standards, and Further Reading ............71
