Because ITC values reflect a measure of association akin to correlation, bounded from zero to one, ITC values were converted to z-scores prior to analyses, with actual ITC values reflected in Figures 2 and 5. Effects for ITC were robust after applying the FDR procedure. Following the same repeated measures analysis as with ERSP, ITC effects emerged for condition and age (Figure 5). Figure 5A shows the respective F-tests and effect sizes (d) for condition, age, and the condition × age interaction. Figure 5B, middle panel, shows the p-values for uncorrected omnibus tests and Figure 5C, bottom panel, shows FDR corrected omnibus tests. After FDR, a condition effect remained from ~200-400 ms by ~4.5 Hz to 8 Hz, largely consistent with the time window capturing the FRN. Two other age-related effects emerged, one at ~150-250 ms and from 4 Hz to 6 Hz and a second at ~350-450 ms and from 4 Hz to 5 Hz. Thus we report the three frequency by time windows reflecting these summary effects (see Table 4 for means and standard deviations and Table 5 for tests of summary effects).
