Developmental Changes in Sleep Spindle Characteristics and Sigma Power across Early Childhood

Figure 3

Mean spectral EEG power density spectra for the sigma range (10–16 Hz; 0.25 Hz bins) at ages 2, 3, and 5 years at C3A2 (a), C4A1 (b), O1A2 (c), and O2A1 (d). Significant post hoc comparisons between ages are denoted for each frequency bin.

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