Table 5.

Correlational analyses between levels of noradrenaline, serotonin or 5-HIAA in nucleus accumbens (NAc) and behaviors in male mice from the resident intruder test which were injected repeatedly with exendin-4 or vehicle.

	Noradrenalin in NAc (pmol/mg)		Serotonin in NAc (pmol/mg)		5-HIAA in NAc (pmol/mg)
	Pearson r (95%, CI)	P-value	Pearson r (95%, CI)	P-value	Pearson r (95%, CI)	P-value
Attack duration (s)	0.2205 (−0.3512–0.6724)	0.4488	0.2932 (−0.2811–0.7129	0.3090	0.5675 (0.0528–0.8439)	0.0343*
Attack frequency	0.4209 (−0.1412–0.7778)	0.1340	0.3555 (−0.2157–0.7455)	0.2122	0.6113 (0.1195–0.8622)	0.0343*
Attack latency (sec)	−0.7434 (−0.9136–−0.3515)	0.0023**	−0.6237 (−0.8673–−0.1393)	0.0171*	−0.5461 (−0.8348–−0.0219)	0.0433*
Threat duration(s)	0.02718 (−0.5108–0.5498)	0.9265	0.1416 (−0.4206–0.6252)	0.6291	0.2559 (−0.3178–0.6925)	0.3772
Threat frequency	−0.0058 (−0.5348–0.5264)	0.9842	0.1243 (−0.435–0.6144)	0.6720	0.0222 (−0.5144–0.5463)	0.9400
Threat latency (s)	−0.3664 (−0.751–0.2038)	0.1975	−0.4223 (−0.7785–0.1395)	0.1325	−0.0299 (−0.5517–0.5087)	0.9191
Social behavior duration (s)	−0.2057 (−0.6638–0.3647)	0.4806	−0.2775 (−0.7043–0.2968)	0.3369	−0.1246 (−0.6145–0.4347)	0.6714
Social behavior frequency	−0.5559 (−0.839–−0.0359)	0.0390*	−0.5626 (−0.8419–−0.0457)	0.0362*	−0.7681 (−0.9227–−0.401)	0.0013**
Social behavior latency (s)	0.3023 (−0.2718–0.7178)	0.2934	0.256 (−0.3174–0.6927)	0.3763	0.5505 (0.0281–0.8367)	0.0414*
Non-social behavior duration (s)	−0.07643 (−0.5834–0.4733)	0.7951	−0.165 (−0.6396–0.4006)	0.5729	−0.5001 (−0.8145–0.0416)	0.0686

Data are presented with Pearson r together with the 95% confidence interval (CI) and the corresponding P-value for each correlational analysis. P < 0.05 is considered as statistically significant; *P < 0.05; **P < 0.01.