Table 1.
Sleep spindle parameters calculated by IAM and the fixed frequency method (FixF).
| FixF | IAM | FixF | IAM | t-value | FixF | IAM | FixF | IAM | t-value | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C3 | Fz | ||||||||||||
| Slow spindles | Density | 3.469 | 6.830 | 0.163 | 1.428 | −29.663 | Slow spindles | Density | 3.586 | 6.876 | 0.143 | 1.245 | −31.273 |
| Duration | 0.673 | 1.413 | 0.045 | 0.467 | −19.995 | Duration | 0.668 | 1.435 | 0.032 | 0.462 | −19.755 | ||
| Amplitude | 42.053 | 3.548 | 12.045 | 1.848 | 40.093 | Amplitude | 57.322 | 4.902 | 15.897 | 2.507 | 38.814 | ||
| Fast spindles | Density | 3.657 | 7.176 | 0.202 | 0.921 | −47.383 | Fast spindles | Density | 3.614 | 6.571 | 0.201 | 1.007 | −34.319 |
| Duration | 0.699 | 1.074 | 0.049 | 0.141 | −31.956 | Duration | 0.693 | 1.435 | 0.047 | 0.462 | −19.067 | ||
| Amplitude | 43.171 | 5.471 | 13.632 | 1.533 | 34.871 | Amplitude | 46.909 | 5.588 | 16.803 | 1.732 | 29.150 | ||
| C4 | O1 | ||||||||||||
| Slow spindles | Density | 3.487 | 6.878 | 0.143 | 1.430 | −29.947 | Slow spindles | Density | 3.215 | 6.737 | 0.126 | 1.947 | −22.905 |
| Duration | 0.666 | 1.411 | 0.042 | 0.462 | −20.348 | Duration | 0.662 | 1.365 | 0.069 | 0.476 | −18.540 | ||
| Amplitude | 41.946 | 3.638 | 11.001 | 1.831 | 43.583 | Amplitude | 28.171 | 2.460 | 10.093 | 1.406 | 32.013 | ||
| Fast spindles | Density | 3.662 | 6.878 | 0.190 | 1.430 | −28.299 | Fast spindles | Density | 3.554 | 7.062 | 0.217 | 1.104 | −39.561 |
| Duration | 0.697 | 1.411 | 0.045 | 0.462 | −19.516 | Duration | 0.703 | 1.073 | 0.052 | 0.146 | −30.259 | ||
| Amplitude | 44.092 | 5.542 | 13.640 | 1.536 | 35.637 | Amplitude | 30.627 | 4.062 | 11.602 | 1.395 | 28.844 | ||
| Cz | O2 | ||||||||||||
| Slow spindles | Density | 3.401 | 6.692 | 0.156 | 1.526 | −25.571 | Slow spindles | Density | 3.219 | 6.728 | 0.114 | 1.944 | −22.866 |
| Duration | 0.674 | 1.381 | 0.053 | 0.465 | −17.976 | Duration | 0.656 | 1.366 | 0.064 | 0.479 | −18.640 | ||
| Amplitude | 49.867 | 4.211 | 13.568 | 2.094 | 39.630 | Amplitude | 28.348 | 2.479 | 10.497 | 1.377 | 31.006 | ||
| Fast spindles | Density | 3.688 | 6.692 | 0.182 | 1.526 | −23.302 | Fast spindles | Density | 3.544 | 7.051 | 0.218 | 1.109 | −39.346 |
| Duration | 0.700 | 1.381 | 0.045 | 0.465 | −17.349 | Duration | 0.699 | 1.066 | 0.051 | 0.142 | −30.824 | ||
| Amplitude | 58.700 | 7.324 | 18.546 | 2.076 | 32.806 | Amplitude | 29.904 | 3.975 | 10.755 | 1.319 | 30.364 | ||
| F3 | P3 | ||||||||||||
| Slow spindles | Density | 3.653 | 6.920 | 0.158 | 1.193 | −34.449 | Slow spindles | Density | 3.275 | 6.743 | 0.154 | 1.741 | −25.187 |
| Duration | 0.673 | 1.459 | 0.032 | 0.459 | −21.674 | Duration | 0.694 | 1.376 | 0.069 | 0.471 | −18.183 | ||
| Amplitude | 52.046 | 4.518 | 14.978 | 2.341 | 39.780 | Amplitude | 37.668 | 3.050 | 10.762 | 1.687 | 40.321 | ||
| Fast spindles | Density | 3.588 | 6.323 | 0.205 | 0.982 | −34.597 | Fast spindles | Density | 3.619 | 7.506 | 0.206 | 0.932 | −51.670 |
| Duration | 0.691 | 1.014 | 0.044 | 0.117 | −32.780 | Duration | 0.718 | 1.110 | 0.051 | 0.149 | −31.496 | ||
| Amplitude | 39.676 | 4.846 | 13.952 | 1.525 | 31.488 | Amplitude | 44.219 | 5.773 | 14.429 | 1.670 | 33.585 | ||
| F4 | P4 | ||||||||||||
| Slow spindles | Density | 3.661 | 6.966 | 0.149 | 1.182 | −35.205 | Slow spindles | Density | 3.286 | 6.761 | 0.147 | 1.754 | −25.046 |
| Duration | 0.669 | 1.456 | 0.029 | 0.456 | −21.834 | Duration | 0.683 | 1.371 | 0.068 | 0.473 | −18.297 | ||
| Amplitude | 53.057 | 4.585 | 15.579 | 2.316 | 39.050 | Amplitude | 36.159 | 2.992 | 10.716 | 1.616 | 38.834 | ||
| Fast spindles | Density | 3.607 | 6.357 | 0.204 | 0.996 | −34.328 | Fast spindles | Density | 3.613 | 7.468 | 0.195 | 0.961 | −49.894 |
| Duration | 0.687 | 1.456 | 0.043 | 0.456 | −21.289 | Duration | 0.716 | 1.104 | 0.048 | 0.150 | −31.314 | ||
| Amplitude | 40.907 | 4.945 | 16.694 | 1.541 | 27.218 | Amplitude | 42.701 | 5.532 | 14.211 | 1.646 | 32.967 | ||
| Slow spindles | Density | 3.661 | 6.953 | 0.164 | 1.318 | −29.526 | Slow spindles | Density | 3.529 | 6.927 | 0.144 | 1.521 | −26.503 |
| Duration | 0.669 | 1.420 | 0.031 | 0.455 | −19.595 | Duration | 0.645 | 1.388 | 0.031 | 0.470 | −18.779 | ||
| Amplitude | 35.259 | 3.253 | 9.820 | 1.617 | 38.323 | Amplitude | 26.048 | 2.312 | 8.012 | 1.201 | 34.914 | ||
| Fast spindles | Density | 3.481 | 5.561 | 0.186 | 1.101 | −22.198 | Fast spindles | Density | 3.529 | 6.210 | 0.156 | 1.142 | −27.718 |
| Duration | 0.660 | 0.964 | 0.035 | 0.102 | −33.518 | Duration | 0.654 | 0.993 | 0.039 | 0.113 | −33.920 | ||
| Amplitude | 23.331 | 2.998 | 7.859 | 0.875 | 30.642 | Amplitude | 19.469 | 2.529 | 6.010 | 0.702 | 33.362 | ||
| F8 | T4 | ||||||||||||
| Slow spindles | Density | 3.670 | 6.979 | 0.160 | 1.334 | −29.352 | Slow spindles | Density | 3.525 | 6.929 | 0.145 | 1.546 | −26.119 |
| Duration | 0.665 | 1.418 | 0.028 | 0.456 | −19.639 | Duration | 0.639 | 1.379 | 0.028 | 0.466 | −18.911 | ||
| Amplitude | 35.654 | 3.303 | 9.349 | 1.626 | 40.625 | Amplitude | 25.325 | 2.348 | 6.821 | 1.198 | 39.535 | ||
| F7 | T3 | ||||||||||||
| Fast spindles | Density | 3.479 | 5.534 | 0.207 | 1.099 | −21.900 | Fast spindles | Density | 3.498 | 6.031 | 0.184 | 1.228 | −24.304 |
| Duration | 0.655 | 0.960 | 0.035 | 0.101 | −34.075 | Duration | 0.647 | 0.985 | 0.037 | 0.117 | −32.600 | ||
| Amplitude | 23.663 | 3.039 | 7.774 | 0.885 | 31.412 | Amplitude | 19.517 | 2.601 | 6.174 | 0.785 | 32.388 | ||
| Fp1 | T5 | ||||||||||||
| Slow spindles | Density | 3.632 | 7.043 | 0.154 | 1.228 | −34.960 | Slow spindles | Density | 3.333 | 6.753 | 0.139 | 1.808 | −22.473 |
| Duration | 0.674 | 1.448 | 0.029 | 0.455 | −21.537 | Duration | 0.646 | 1.354 | 0.048 | 0.480 | −17.495 | ||
| Amplitude | 44.540 | 3.755 | 18.255 | 1.943 | 28.190 | Amplitude | 25.427 | 2.276 | 7.801 | 1.293 | 34.888 | ||
| Fast spindles | Density | 3.462 | 5.500 | 0.199 | 1.061 | −23.961 | Fast spindles | Density | 3.544 | 6.849 | 0.188 | 1.058 | −36.667 |
| Duration | 0.669 | 0.969 | 0.036 | 0.099 | −36.057 | Duration | 0.690 | 1.045 | 0.049 | 0.139 | −28.762 | ||
| Amplitude | 28.654 | 3.325 | 16.333 | 1.010 | 19.640 | Amplitude | 25.257 | 3.279 | 8.719 | 1.074 | 29.812 | ||
| Fp2 | T6 | ||||||||||||
| Slow spindles | Density | 3.644 | 7.064 | 0.152 | 1.238 | −34.793 | Slow spindles | Density | 3.347 | 6.785 | 0.125 | 1.852 | −22.075 |
| Duration | 0.672 | 1.445 | 0.028 | 0.454 | −21.579 | Duration | 0.638 | 1.348 | 0.042 | 0.475 | −17.763 | ||
| Amplitude | 44.180 | 3.783 | 17.303 | 1.927 | 29.443 | Amplitude | 24.813 | 2.241 | 8.184 | 1.213 | 32.509 | ||
| Fast spindles | Density | 3.477 | 5.569 | 0.204 | 1.070 | −24.360 | Fast spindles | Density | 3.541 | 6.750 | 0.185 | 1.074 | −35.098 |
| Duration | 0.665 | 0.965 | 0.035 | 0.098 | −36.612 | Duration | 0.680 | 1.033 | 0.048 | 0.132 | −29.933 | ||
| Amplitude | 28.325 | 3.345 | 13.607 | 1.031 | 23.228 | Amplitude | 23.782 | 3.108 | 7.491 | 0.876 | 32.665 |
Density, duration and amplitude means, standard deviations (StD) and comparison t-values are shown.