Table 2.

Mean ± SEM spontaneous firing rates (Hz) of BLA → mPFC(−) and BLA → mPFC(+) neurons before and after systemic DA receptor agonist administration

BLA → mPFC(−) neurons	Baseline	After drug administration
Saline (n = 7)	3.8 ± 0.7	2.7 ± 0.8
SKF 81297 (0.5 mg/kg) (n = 5)	2.8 ± 0.8	2.3 ± 0.4
Quinpirole (0.2 mg/kg) (n = 6)	3.1 ± 1.3	2.4 ± 0.9
Bromocriptine (0.5 mg/kg) (n = 6)	4.6 ± 2.0	3.0 ± 1.0
PD-168,077 (1 mg/kg) (n = 7)	2.9 ± 0.6	3.8 ± 1.1
BLA → mPFC(+) neurons	Baseline	After drug administration
SKF 81297 (0.5 mg/kg) (n = 9)	1.0 ± 0.3	1.0 ± 0.6
Quinpirole (0.2 mg/kg) (n = 7)	0.7 ± 0.2	1.5 ± 0.5*
PD-168,077 (1 mg/kg) (n = 7)	1.4 ± 0.6	2.7 ± 1.3

*p < 0.05 versus baseline.