Table 1.

Descriptive Statistics and Correlations for P3 Amplitude and Latency, Sleep Variables and Sustained Attention

	Age (years)	Target P3 Amp (uV)	Frequent P3 Amp (uV)	Target P3 Lat (ms)	Irregular Sleep	Sleep Duration	Sustained Attention
Target P3 Amp		1.00
Frequent P3 Amp		−.08	1.00
Target P3 Lat		−.05	−.37	1.00
Irregular Sleep		.06	−.37	.61**	1.00
Sleep Duration		.01	−.04	.24	.60**	1.00
Sustained Attention		.17	.19	−.51	−.57	−.36	1.00
Mean	2.79	10.78	10.14	622.00	0.07	0.27	0.08
SD	0.28	12.16	9.26	46.87	0.38	0.71	0.09

Note:

^*p<.05.

^**p<.01.

Amp = Amplitude

Lat = Latency