Table 5. Nap sleep spindle parameters.

		Nap slow spindles				Nap fast spindles
		Mean	StD	Minimum	Maximum	Mean	StD	Minimum	Maximum
	Frequency (low)	11.512	0.732	9.576	13.008	13.505	0.432	12.588	14.422
	Frequency (high)	12.335	0.691	10.461	13.839	14.560	0.459	13.629	15.745
	Frequency (middle)	11.924	0.701	10.078	13.424	14.052	0.435	13.109	15.056
C3	Density	6.468	1.528	0.396	10.678	6.034	1.479	0.593	9.581
	Duration	1.511	0.432	0.925	2.899	1.173	0.180	0.843	1.891
	Mean amplitude	3.789	1.897	1.142	11.021	4.664	1.443	1.848	8.284
	Maximum amplitude	4.025	2.014	1.223	12.048	4.951	1.511	1.957	8.660
C4	Density	6.581	1.537	0.693	9.957	6.016	1.520	0.495	10.210
	Duration	1.507	0.421	0.945	2.733	1.177	0.182	0.850	1.849
	Mean amplitude	3.795	2.020	1.232	12.268	4.829	1.532	2.072	8.559
	Maximum amplitude	4.040	2.129	1.363	13.157	5.123	1.587	2.197	8.911
F3	Density	6.335	1.423	0.297	10.215	5.694	1.424	0.297	9.840
	Duration	1.577	0.430	0.966	3.214	1.123	0.168	0.799	1.700
	Mean amplitude	4.572	2.609	1.110	17.421	4.020	1.238	1.551	8.218
	Maximum amplitude	4.869	2.729	1.199	17.855	4.314	1.300	1.663	8.496
F4	Density	6.428	1.493	0.693	10.003	5.674	1.555	0.495	10.764
	Duration	1.566	0.414	0.992	3.064	1.124	0.168	0.825	1.728
	Mean amplitude	4.655	2.735	1.184	17.792	4.222	1.291	1.640	7.374
	Maximum amplitude	4.967	2.857	1.253	18.184	4.531	1.367	1.760	7.849
O1	Density	7.013	1.624	2.177	10.620	6.120	1.632	0.594	9.761
	Duration	1.464	0.539	0.813	3.680	1.163	0.182	0.821	1.985
	Mean amplitude	2.736	1.257	1.046	8.390	3.995	1.275	1.620	7.017
	Maximum amplitude	2.944	1.387	1.068	9.356	4.229	1.327	1.787	7.410
O2	Density	7.025	1.580	1.485	10.929	6.173	1.570	0.495	10.505
	Duration	1.475	0.520	0.829	3.207	1.170	0.162	0.868	1.782
	Mean amplitude	2.725	1.241	1.182	7.695	3.852	1.271	1.343	6.975
	Maximum amplitude	2.935	1.361	1.211	8.691	4.109	1.319	1.438	7.320