Table 3.

Age-related change in period amplitude measures of delta (1–4 Hz) EEG activity during cycles 2 and 3 of REM sleep

PAA Measure	Age 6 Intercept	Slope (per year)	F	P
IA, μVs	262	−15.0	3261	<0.0001
TIB, s	13.1	−0.434	2177	<0.0001
ASA, μV	21.1	−0.854	1895	<0.0001
Mean freq., Hz	2.26	0.0247	1095	<0.0001

Shown are results of linear mixed effect analysis.