Zingiber officinale Improves Cognitive Function of the Middle-Aged Healthy Women

Table 2

Effect of Zingiber officinale on auditory event-related potential.

Wave	Predose baseline score		Postdose score
			1 month	2 months
N100 latency	Placebo	116.80±1.385	114.50±11.97	113.85±10.24
	400 mg	114.35±11.44	113.25±11.85	110.35±10.17
	800 mg	114.05±8.31	109.95±8.72	106.75±9.13
N100 amplitude	Placebo	5.70±10.08	5.65±1.08	5.70±1.07
	400 mg	5.90±1.37	6.40±1.18	6.55±1.05
	800 mg	5.75±1.29	7.05±1.19 **	6.90±0.96 ***
P300 latency	Placebo	332.70±12.96	330.30±11.02	332.35±8.99
	400 mg	332.25±13.81	329.45±11.78	323.85±13.10
	800 mg	332.90+10.20	325.60±12.91	321.35±9.77 ***
P300 amplitude	Placebo	7.25±1.10	7.25±1.06	7.20±1.05
	400 mg	7.25±1.01	7.50±1.23	8.10±1.16 **
	800 mg	7.20±1.10	7.90±1.02	8.40±1.35 **

The amplitudes and latencies of event-related potential elicited by oddball paradigm at Cz electrode were measured. Data are presented as mean ±SD (𝑛=20/group).
**, ***𝑃 value < 0.05, 0.01, and 0.001 compared to placebo-treated group, respectively.