Table 3.

EEG absolute power density (µV² Hz⁻¹; all values are median; range).

Time (h)	Range	Amitriptyline	St John's wort	Placebo
0	theta	2.7 (1.6–5.6)	2.7 (1.7–6.0)	2.7 (1.5–8.7)
	alpha2	3.6 (1.2–8.3)	3.1 (1.2–8.0)	3.5 (1.1–8.3)
0.5	theta	3.2 (2.1–9.2)*	3.0 (1.6–4.9)*	2.8 (1.7–6.5)
	alpha2	3.9 (1.7–10.2)*	3.1 (1.6–6.7)	3.1 (1.1–14.4)
3	theta	3.6 (2.1–8.6)*	3.2 (1.7–6.3)*	3.1 (1.7–8.1)
	alpha2	4.9 (2.0–9.3)*	3.8 (1.6–7.4)	3.6 (1.3–12.1)
5	theta	3.0 (2.2–9.3)	3.2 (1.6–6.7)	3.2 (1.6–12.8)
	alpha2	4.2 (1.9–8.8)	4.3 (1.7–7.6)	4.1 (1.0–13.3)

^*P < 0.05 when compared post hoc with pretreatment (time 0) and with placebo.