表 1. Active poke responses in three groups with different fixed-ratio (FR) schedules.

不同固定比率程序下3组大鼠有效鼻触反应数

Schedule	Group	Active poke responses					Time			Time×group			Group
		Day 0	Day 1	Day 2	Day 3		F	P		F	P		F	P
FR: Fixed-ratio schedule; *P<0.05, **P<0.01, ***P<0.001, vs. Day 3.
FR1	Menthol (n=9)	26.22±11.74	27.33±10.85	26.78±4.92	24.56±5.03		0.586	0.580		0.423	0.813		1.442	0.256
	Cineole (n=9)	22.89±11.63	20.11±6.43	19.33±9.79	19.67±8.46
	Vehicle (n=9)	25.11±11.75	26.67±13.31	27.56±7.20	24.22±10.70
FR2	Menthol (n=9)	42.00±17.57	50.00±23.03**	37.78±13.19	31.33±10.51		3.721	0.015		1.585	0.165		0.914	0.415
	Cineole (n=9)	42.11±20.17	51.11±13.74	55.78±22.10	46.56±15.70
	Vehicle (n=8)	38.88±13.12	48.38±12.94	39.63±23.36	40.63±21.02
FR5	Menthol (n=5)	100.80±29.35*	111.20±7.19***	100.20±20.19*	69.00±18.38		0.657	0.585		9.355	<0.001		0.023	0.977
	Cineole (n=5)	87.80±34.34**	74.00±14.61***	87.40±17.56**	127.20±19.56
	Vehicle (n=4)	105.50±11.12	84.00±26.60	94.75±30.90	86.75±23.34