Table 2.

Basic membrane properties from the NAc shell (MSNs) and OFC (pyramidal neurons) following extinction of Pavlovian approach

	NAc shell				OFC
	Unpaired		Paired		Unpaired		Paired
	GFP−	GFP+	GFP−	GFP+	GFP−	GFP+	GFP−	GFP+
Resting Vm (mV)	−79.09 ± 1.00	−76.18 ± 0.86	−77.60+0.66	−76.83 ± 1.05	−77.71 ± 0.63	−77.13 ± 1.19	−76.16 ± 0.94	−77.11 ± 0.82
Rheobase (pA)	41.15 ± 4.96	38.18 ± 5.50	45.56 ± 4.72	45.00 ± 4.99	88.13 ± 10.00	107.72 ± 11.99	121.05 ± 18.30	119.38 ± 14.56
Ri (mΩ)	418.36 ± 24.83	475.79 ± 52.81	438.83 ± 37.22	454.78 ± 48.13	207.12 ± 14.67	196.56 ± 14.38	182.57 ± 18.97	169.24 ± 21.71
AP Peak (mV)	62.99 ± 3.81	66.18 ± 3.12	67.82 ± 2.85	61.55 ± 3.26	107.11 ± 1.72	102.51 ± 3.40	106.52 ± 1.71	98.61 ± 2.81
AP Half-Width (ms)	1.71 ± 0.07	1.78 ± 0.09	1.62 ± 0.04	1.79 ± 0.08	1.01 ± 0.03	1.04 ± 0.04	0.96 ± 0.03	1.00 ± 0.04
fAHP (mV)	−10.68 ± 0.61	−12.00 ± 1.03	−10.72 ± 0.72	−9.28 ± 0.88	−19.17 ± 2.26	−25.57 ± 2.54*	−17.37 ± 2.40	−21.38 ± 2.79*
mAHP (mV)	−8.77 ± 0.47	−8.99 ± 0.50	−8.31 ± 0.45	−7.95 ± 0.77	−6.86 ± 1.18	−6.42 ± 0.83	−7.83 ± 0.87	−7.84 ± 1.38

Data are expressed as mean ± SEM (*p < 0.05). Asterisk indicates main effect of GFP. Liquid junction potential was −11.1 mV and was not adjusted for. Spike kinetics were calculated as detailed in Table 1.

V_m, Resting membrane potential; R_i, input resistance; fAHP, fast AHP; mAHP, medium AHP.