Table 4 The changes of brain activity during experiment.
Before olfactory stimulation presented | Olfactory stimulation is attached on the wall | After 10 min inhalation and stimulus ejected from the wall | |||||||
|---|---|---|---|---|---|---|---|---|---|
Unscented (mean ± SD) | White Musk (mean ± SD) | p* | Unscented (mean ± SD) | White Musk (mean ± SD) | p* | Unscented (mean ± SD) | White Musk (mean ± SD) | p* | |
Theta (θ) | |||||||||
F3 | 56.907 ± 2.22 | 56.875 ± 1.59 | 1 | 57.165 ± 2.055 | 56.91 ± 1.646 | 1 | 57.255 ± 1.916 | 56.996 ± 1.656 | 1 |
F4 | 57.305 ± 2.393 | 57.413 ± 1.665 | 1 | 57.61 ± 2.185 | 57.491 ± 1.545 | 1 | 57.732 ± 2.166 | 57.689 ± 1.594 | 1 |
C3 | 57.071 ± 2.05 | 56.883 ± 1.566 | 1 | 57.263 ± 1.788 | 57.011 ± 1.508 | 1 | 57.415 ± 1.767 | 57.062 ± 1.529 | 1 |
C4 | 57.239 ± 2.2 | 56.789 ± 1.905 | 1 | 57.532 ± 2.052 | 57.028 ± 1.769 | 1 | 57.742 ± 2.148 | 57.139 ± 1.711 | 1 |
P3 | 56.932 ± 2.333 | 56.896 ± 1.919 | 1 | 57.002 ± 2.002 | 56.877 ± 1.636 | 1 | 57.228 ± 2.016 | 56.82 ± 1.544 | 1 |
P4 | 57.015 ± 2.586 | 56.356 ± 1.951 | 0.984 | 57.18 ± 2.244 | 56.615 ± 1.788 | 1 | 57.4 ± 2.306 | 56.528 ± 1.652 | 1 |
O1 | 56.186 ± 2.854 | 55.774 ± 2.079 | 1 | 56.614 ± 2.557 | 55.882 ± 1.812 | 1 | 57.018 ± 2.725 | 56.235 ± 1.885 | 1 |
O2 | 56.478 ± 2.845 | 55.738 ± 2.605 | 0.672 | 56.755 ± 2.52 | 55.789 ± 2.037 | 0.808 | 57.104 ± 2.631 | 56.164 ± 2.016 | 1 |
Alpha (α) | |||||||||
F3 | 57.664 ± 2.804 | 57.674 ± 2.346 | 1 | 56.544 ± 3.328 | 56.537 ± 2.686 | 1 | 56.423 ± 3.471 | 56.323 ± 2.898 | 1 |
F4 | 58.144 ± 2.925 | 58.212 ± 2.388 | 1 | 57.17 ± 3.337 | 57.174 ± 2.671 | 1 | 57.082 ± 3.426 | 56.987 ± 2.85 | 1 |
C3 | 58.856 ± 2.98 | 58.728 ± 2.457 | 1 | 57.803 ± 3.34 | 57.504 ± 2.786 | 1 | 57.651 ± 3.56 | 57.347 ± 2.888 | 1 |
C4 | 59.241 ± 2.775 | 58.828 ± 2.366 | 1 | 58.26 ± 3.246 | 57.853 ± 2.806 | 1 | 58.094 ± 3.425 | 57.693 ± 2.868 | 1 |
P3 | 60.34 ± 3.568 | 60.475 ± 2.722 | 1 | 58.912 ± 3.627 | 59.018 ± 2.997 | 1 | 58.514 ± 3.921 | 58.834 ± 3.064 | 1 |
P4 | 60.202 ± 3.155 | 60.174 ± 1.834 | 1 | 59.068 ± 3.563 | 58.748 ± 2.628 | 1 | 58.669 ± 3.763 | 58.45 ± 2.709 | 1 |
O1 | 61.574 ± 3.496 | 61.307 ± 2.483 | 1 | 59.786 ± 3.515 | 59.798 ± 2.58 | 1 | 59.547 ± 3.543 | 59.433 ± 2.52 | 1 |
O2 | 61.872 ± 3.477 | 61.752 ± 2.629 | 1 | 60.169 ± 3.655 | 60.225 ± 2.995 | 1 | 59.908 ± 3.725 | 59.853 ± 2.782 | 1 |
Beta (β) | |||||||||
F3 | 48.795 ± 2.564 | 48.017 ± 2.351 | 1 | 48.113 ± 2.402 | 47.466 ± 2.333 | 0.32 | 48.877 ± 2.787 | 47.605 ± 2.36 | 1 |
F4 | 49.611 ± 2.821 | 49.13 ± 3.406 | 1 | 48.888 ± 2.531 | 48.784 ± 3.28 | 1 | 49.506 ± 2.561 | 48.836 ± 3.282 | 1 |
C3 | 49.21 ± 2.548 | 48.529 ± 2.131 | 1 | 48.523 ± 1.808 | 47.878 ± 2.196 | 0.032 | 49.181 ± 2.712 | 47.923 ± 2.227 | 1 |
C4 | 50.134 ± 2.954 | 49.265 ± 2.473 | 1 | 48.94 ± 2.161 | 48.561 ± 2.491 | 1 | 49.481 ± 2.842 | 48.575 ± 2.738 | 1 |
P3 | 49.499 ± 2.607 | 49.545 ± 2.183 | 1 | 48.543 ± 2.316 | 48.717 ± 2.257 | 1 | 48.842 ± 2.505 | 48.756 ± 2.322 | 1 |
P4 | 49.912 ± 2.671 | 49.427 ± 1.912 | 1 | 48.775 ± 2.476 | 48.703 ± 1.92 | 1 | 49.222 ± 2.811 | 48.731 ± 2.111 | 1 |
O1 | 50.534 ± 2.403 | 51.033 ± 2.816 | 1 | 50.117 ± 1.91 | 50.935 ± 2.88 | 1 | 50.396 ± 1.878 | 51.281 ± 2.75 | 1 |
O2 | 50.585 ± 2.38 | 51.573 ± 2.714 | 1 | 49.933 ± 2.273 | 51.96 ± 2.681 | 0.384 | 50.277 ± 2.208 | 52.304 ± 2.987 | 1 |
Low gamma (γ) | |||||||||
F3 | 39.156 ± 4.277 | 37.703 ± 2.789 | 1 | 37.459 ± 3.151 | 36.543 ± 2.414 | 1 | 39.097 ± 4.993 | 36.961 ± 2.72 | 1 |
F4 | 39.997 ± 4.178 | 39.733 ± 5.669 | 1 | 38.15 ± 3.32 | 38.605 ± 5.639 | 1 | 39.249 ± 4.144 | 38.529 ± 5.651 | 1 |
C3 | 38.937 ± 3.508 | 37.539 ± 2.135 | 1 | 37.808 ± 2.315 | 36.647 ± 1.974 | 1 | 39.361 ± 4.66 | 36.953 ± 2.443 | 1 |
C4 | 40.416 ± 4.944 | 39.67 ± 3.948 | 1 | 38.192 ± 2.226 | 38.635 ± 3.699 | 1 | 38.981 ± 4.849 | 38.494 ± 4.218 | 1 |
P3 | 38.466 ± 2.777 | 38.397 ± 2.43 | 1 | 37.379 ± 1.911 | 38.325 ± 2.298 | 1 | 38.622 ± 2.8 | 38.683 ± 2.392 | 1 |
P4 | 38.913 ± 3.586 | 38.528 ± 1.903 | 1 | 37.281 ± 1.958 | 38.276 ± 1.689 | 1 | 38.516 ± 3.658 | 38.625 ± 2.156 | 1 |
O1 | 40.487 ± 3.608 | 41.994 ± 4.652 | 1 | 40.915 ± 2.953 | 43.081 ± 4.401 | 1 | 41.957 ± 2.953 | 44.012 ± 4.075 | 1 |
O2 | 39.599 ± 3.234 | 43.765 ± 3.081 | 0.216 | 40.022 ± 2.451 | 44.947 ± 3.06 | 0.048 | 41.283 ± 1.948 | 45.473 ± 3.69 | 1 |
High gamma (γ) | |||||||||
F3 | 37.298 ± 5.756 | 35.428 ± 3.53 | 1 | 35.19 ± 4.692 | 33.597 ± 2.881 | 0.944 | 36.874 ± 7.049 | 33.98 ± 3.549 | 1 |
F4 | 38.109 ± 5.653 | 37.161 ± 6.254 | 1 | 35.659 ± 4.389 | 35.501 ± 6.18 | 1 | 36.447 ± 5.467 | 35.258 ± 6.243 | 1 |
C3 | 36.599 ± 5.491 | 34.893 ± 2.849 | 1 | 35.338 ± 3.746 | 33.581 ± 2.41 | 1 | 37.093 ± 6.768 | 33.936 ± 3.239 | 1 |
C4 | 37.995 ± 6.404 | 37.062 ± 4.959 | 1 | 35.469 ± 3.405 | 35.815 ± 4.385 | 1 | 36.188 ± 6.111 | 35.558 ± 4.999 | 1 |
P3 | 35.981 ± 3.841 | 35.767 ± 2.385 | 1 | 34.58 ± 2.36 | 35.623 ± 2.463 | 1 | 36.266 ± 4.502 | 36.044 ± 2.818 | 1 |
P4 | 35.949 ± 4.916 | 36.227 ± 2.122 | 1 | 34.315 ± 2.615 | 35.681 ± 1.296 | 1 | 35.746 ± 4.875 | 36.11 ± 1.981 | 1 |
O1 | 38.18 ± 4.092 | 40.075 ± 4.766 | 1 | 38.546 ± 3.554 | 41.122 ± 4.471 | 1 | 39.809 ± 3.919 | 42.081 ± 4.176 | 1 |
O2 | 36.94 ± 4.281 | 42.213 ± 2.983 | 0.208 | 37.792 ± 2.764 | 43.066 ± 2.846 | 0.056 | 39.316 ± 2.459 | 43.514 ± 3.378 | 0.144 |
