a given CSD component, site effects were not further pursued in these analyses. For the time-frequency domain, tfPCA factor scores corresponding to CSD-ERSP components unambiguously related to alpha ERS or alpha ERD were submitted to similar repeated measures ANOVAs, selecting subsets of recording sites at which tfPCA factor scores were largest and most representative of the associated CSD-ERSP component (cf. Kayser & Tenke, 2006a).
