Table 1.

Cell characteristics of layer V pyramidal neurons of rats trained in the RI task and behavioral controls

Training group	Number of subjects	Number of cells	AMPA/NMDA	Series resistance (MΩ)	Input resistance (MΩ)	Membrane capacitance (pF)	Holding current (pA)
Prelimbic
RI task	6	16	1.21 ± 0.09	7.1 ± 0.6	53.0 ± 3.5	45.2 ± 2.4	655.0 ± 38.8
Operant control	5	15	0.70 ± 0.08	6.3 ± 0.7	52.5 ± 6.0	53.4 ± 3.6	638.8 ± 85.9
Yoked control	4	12	0.76 ± 0.07	6.9 ± 0.8	55.4 ± 5.9	49.8 ± 4.2	637.1 ± 68.1
Weight control	5	11	0.72 ± 0.07	5.4 ± 0.5	48.2 ± 3.9	59.9 ± 8.3	595.1 ± 52.1
Age control	6	16	0.69 ± 0.05	5.4 ± 0.2	55.0 ± 6.0	54.5 ± 2.4	605.1 ± 67.0
Infralimbic
RI task	5	11	0.74 ± 0.09	6.6 ± 0.7	72.1 ± 11.0	48.1 ± 6.3	537.9 ± 70.8
Operant control	5	13	0.75 ± 0.06	8.3 ± 1.3	73.1 ± 7.6	41.3 ± 3.6	449.8 ± 39.7
Yoked control	4	7	0.76 ± 0.10	8.2 ± 1.1	101.5 ± 7.7	43.7 ± 5.5	366.4 ± 89.2
Weight control	4	10	0.83 ± 0.08	6.6 ± 0.6	61.6 ± 6.6	45.1 ± 2.4	550.9 ± 117.9
Age control	4	12	0.75 ± 0.07	5.5 ± 0.2	48.1 ± 3.5	48.1 ± 3.5	579.3 ± 90.2

Values were obtained with a 10 ms, +10 mV pulse while holding neurons at +40 mV. No significant differences between experimental groups were observed for any variable, with the exception of AMPA/NMDA (bolded).