Table 4.

Proportion of neurons expressing D1Rs or D2Rs across cortical layers: average ± standard error

D1R
	I	II-III	IV	V	VI
Neurogranin	—	0.87 ± 0.02	0.86 ± 0.06	0.89 ± 0.03	0.82 ± 0.03
SMI-32	—	1.00 ± 0.00	1.00 ± 0.00	1.00 ± 0.00	0.97 ± 0.02
Parvalbumin	—	0.13 ± 0.00	0.18 ± 0.03	0.05 ± 0.04	0.09 ± 0.06
Calbindin	0.06 ± 0.05	0.31 ± 0.03	0.56 ± 0.08	0.36 ± 0.05	0.20 ± 0.03
Calretinin	0.40 ± 0.18	0.12 ± 0.06	0.07 ± 0.04	0.13 ± 0.07	0.37 ± 0.10
D2R
	I	II-III	IV	V	VI
Neurogranin	—	0.45 ± 0.03	0.59 ± 0.01	0.59 ± 0.01	0.62 ± 0.12
SMI-32	—	0.85 ± 0.08	0.93 ± 0.05	0.92 ± 0.07	0.85 ± 0.12
Parvalbumin	—	0.49 ± 0.16	0.86 ± 0.12	0.74 ± 0.11	0.78 ± 0.03
Calbindin	—	0.23 ± 0.05	0.33 ± 0.14	0.34 ± 0.13	0.24 ± 0.10
Calretinin	0.10 ± 0.07	0.12 ± 0.09	0.00 ± 0.00	0.10 ± 0.07	0.23 ± 0.08