Table 1.

Analyses of correlation between CB₁ receptor levels (X) in the prefrontal cortex (PFC), amygdala (AMY), striatum (STR), hippocampus (HIP) and midbrain (MID) and anxiety-related behavioral indices (Y) in the elevated plus maze (EPM), open field (OF) and social interaction (SI) in C57BL/6. For further details, see text.

X	Y		r2	p	Slope	Intercept-Y axis
PFC	EPM	Time in open arm (s)	0.88	0.06	−54.51 ± 14.31	57.15 ± 10.55
		Time in center (s)	0.89	0.05	−17.01 ± 4.14	22,69 ± 3.05
		Head Dips (fz)	0.92	0.04	−47.89 ± 9.73	53.32 ± 7.18
	OF	Total movement (cm)	0.79	0.11	−696.5 ± 252.2	1199 ± 186.0
		Time in center (s)	0.50	0.29	−148.3 ± 104.2	170.0 ± 76.83
		Rearing (fz)	0.40	0.36	−15.34 ± 13.16	16.02 ± 6.83
	SI	Total sniffing (s)	0.33	0.42	−35.97 ± 36.02	38.12 ± 18.69
		Frontal sniffing (s)	0.74	0.14	−21.35 ± 8.87	18.42 ± 8.86
		Abdominal sniffing (s)	0.36	0.40	−7.77 ± 7.35	6.43 ± 3.81
		Anogenital sniffing (s)	0.01	0.93	−3.59 ± 34.89	12.83 ± 18.10
AMY	EPM	Time in open arm (s)	0.38	0.39	66.07 ± 60.02	−8.80 ± 21.22
		Time in center (s)	0.65	0.19	26.69 ± 13.74	−1.64 ± 4.86
		Head Dips (fz)	0.42	0.55	47.96 ± 56.38	−2.18 ± 20.39
	OF	Total movement (cm)	0.12	0.57	−566.6 ± 882.0	1098 ± 307.5
		Time in center (s)	0.13	0.55	−261.4 ± 384.3	185.0 ± 134.0
		Rearing (fz)	0.37	0.27	−31.90 ± 23.94	22.11 ± 8.346
	SI	Total sniffing (s)	0.10	0.60	−43.37 ± 74.82	51.49 ± 26.08
		Frontal sniffing (s)	0.03	0.79	3.97 ± 13.57	6.49 ± 4.73
		Abdominal sniffing (s)	0.07	0.66	9.11 ± 18.69	1.40 ± 6.51
		Anogenital sniffing (s)	0.15	0.52	−52.64 ± 72.11	42.75 ± 25.14
STR	EPM	Time in open arm (s)	0.57	0.25	343.6 ± 212.8	−167.5 ± 118.1
		Time in center (s)	0.45	0.33	106.6 ± 83.83	−47.79 ± 46.52
		Head Dips (fz)	0.61	0.22	312.9 ± 177.7	−150.6 ± 98.62
	OF	Total movement (cm)	0.52	0.17	1545 ± 858.8	5.795 ± 516.1
		Time in center (s)	0.05	0.73	158.9 ± 416.2	25.29 ± 250.1
		Rearing (fz)	0.14	0.53	−17.46 ± 24.81	19.77 ± 14.91
	SI	Total sniffing (s)	0.23	0.41	−35.55 ± 37.07	64.72 ± 22.28
		Frontal sniffing (s)	0.01	1.00	0.09± 35.87	9.95 ± 21.56
		Abdominal sniffing (s)	0.11	0.59	12.35 ± 20.54	−1.14 ± 12.35
		Anogenital sniffing (s)	0.15	0.52	−49.85 ± 68.99	57.41 ± 41.46
HIP	EPM	Time in open arm (s)	0.50	0.29	−135.8 ± 96.22	70.62 ± 39.66
		Time in center (s)	0.64	0.20	−54.95 ± 28.87	31.47 ± 11.90
		Head Dips (fz)	0.58	0.24	−135.6 ± 82.30	72.47 ± 33.92
	OF	Total movement (cm)	0.01	0.88	322.4 ± 1949	752.3 ± 803.3
		Time in center (s)	0.03	0.82	−109.5 ± 419.0	108.6 ± 172.7
		Rearing (fz)	0.37	0.39	144.8 ± 134.2	−33.90 ± 55.31
	SI	Total sniffing (s)	0.49	0.30	−105.1 ± 76.00	57.53 ± 31.32
		Frontal sniffing (s)	0.42	0.35	−44.90 ± 37.40	26.70 ± 15.42
		Abdominal sniffing (s)	0.43	0.34	−23.37 ± 18.99	13.09 ± 7.82
		Anogenital sniffing (s)	0.57	0.25	−37.01 ± 22.88	18.55 ± 9.42
MID	EPM	Time in open arm (s)	0.72	0.07	211.9 ± 76.17	−97.52 ± 42.73
		Time in center (s)	0.67	0.09	69.01 ± 27.91	−27.96 ± 15.66
		Head Dips (fz)	0.64	0.11	174.4 ± 76.03	−76.54 ± 42.65
	OF	Total movement (cm)	0.02	0.80	508.1 ± 1879	611.0 ± 1054
		Time in center (s)	0.30	0.34	517.2 ± 452.1	−199.5 ± 253.6
		Rearing (fz)	0.44	0.23	−197.6 ± 129.7	130.1 ± 72.77
	SI	Total sniffing (s)	0.77	0.04	185.4 ± 57.80	−83.26 ± 32.43
		Frontal sniffing (s)	0.13	0.54	31.43 ± 46.02	−9.67 ± 25.82
		Abdominal sniffing (s)	0.11	0.58	14.24 ± 23.45	−4.514 ± 13.16
		Anogenital sniffing (s)	0.75	0.06	142.5 ± 47.93	−69.63 ± 26.89