Influence of Binasal and Uninasal Inhalations of Essential Oil of Abies koreana Twigs on Electroencephalographic Activity of Human

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 (µV^2)	During inhalation (µV^2)	t-test	P
Both nostrils
RA	T3: left temporal			−2.593	0.029
	T4: right temporal			−2.459	0.036
RG	P3: left parietal			−2.400	0.040
Left nostril
ALB	P3: left parietal			3.295	0.009
RLB	Fp1: left prefrontal			−3.819	0.004
	Fp2: right prefrontal			−2.824	0.020
	F3: left frontal			−2.394	0.40
Right nostril
AT	F3: left frontal			2.330	0.045
	P4: right parietal			2.532	0.032

RA, relative alpha; RG, relative gamma; ALB, absolute low beta; RLB, relative low beta; AT, absolute theta.
difference (P < 0.05); number of subjects, 10.