The standard procedures for the computation of LORETA were followed according to Pascual-Marqui et al. (1994, 2001), Pascual-Marqui (1999), Gomez and Thatcher (2001), Thatcher et al. (2005a,b). Numerous studies have demonstrated that 19 scalp electrodes are sufficient in number to measure intracranial sources including from the hippocampus (see the listing of 795 publications at: http://www.uzh.ch/keyinst/NewLORETA/QuoteLORETA/PapersThatQuoteLORETA05.htm).
