Bernat et al. (N=2068), which included the subjects used in the current report, supplemented by the addition of 17-year-olds whose data have more recently become available (providing a total N=2084). Decompositions were performed on a frequency range of 0 – 5.75 Hz and a time range from stimulus onset (0 ms) to 1000 ms post-stimulus. Broader-range decompositions, which included frequencies through the upper range of alpha (0–12 Hz) were also performed; however, TF transforms of the averaged data predictably yielded no components in the upper frequency range. The present range was chosen, then, to achieve the best resolution decomposition of the frequency range within which there was activity of interest. Figure 1 shows the TF components for the group of 506 subjects in the current report, weighted by the PCA-derived component loadings from the larger sample (also see Results section for a more detailed description of the TF-PCA components).
