Table 6.
Effect of inhalation of essential oil of A. koreana twigs on EEG activity in men (both, left, and right nostrils).
| EEG indices | Site | Before inhalation (µV2) | During inhalation (µV2) | t-test | P value∗ |
|---|---|---|---|---|---|
| Both nostrils | |||||
| RA | T3: left temporal | 0.4271 ± 0.066 | 0.5103 ± 0.070 | −2.593 | 0.029 |
| T4: right temporal | 0.4273 ± 0.073 | 0.5066 ± 0.080 | −2.459 | 0.036 | |
| RG | P3: left parietal | 0.0998 ± 0.033 | 0.0805 ± 0.032 | −2.400 | 0.040 |
|
| |||||
| Left nostril | |||||
| ALB | P3: left parietal | 4.8147 ± 0.648 | 4.0104 ± 0.542 | 3.295 | 0.009 |
| RLB | Fp1: left prefrontal | 0.0326 ± 0.007 | 0.0437 ± 0.009 | −3.819 | 0.004 |
| Fp2: right prefrontal | 0.0334 ± 0.008 | 0.0438 ± 0.010 | −2.824 | 0.020 | |
| F3: left frontal | 0.0370 ± 0.010 | 0.0433 ± 0.011 | −2.394 | 0.40 | |
|
| |||||
| Right nostril | |||||
| AT | F3: left frontal | 22.2562 ± 5.108 | 18.1241 ± 3.968 | 2.330 | 0.045 |
| P4: right parietal | 17.9657 ± 7.698 | 14.1190 ± 3.306 | 2.532 | 0.032 | |
RA, relative alpha; RG, relative gamma; ALB, absolute low beta; RLB, relative low beta; AT, absolute theta.
∗Significant difference (P < 0.05); number of subjects, 10.