. 2013 Jan 14;110(9):3549–3554. doi: 10.1073/pnas.1214912110

Table 2.

Calculated CMR_glc(ox) derived from neuronal activity in rat somatosensory cortex for OGI of 5.6

Behavioral state^*	PR	UR1^†	US1^†	AR^†	AS^†	UR2^‡	US2^‡	CR^‡	CS^‡	HR^‡	HS^‡
Σ(δ_i f_i η_N,i) (×10³ spike.neuron.cm/s per centimeter³)	0.00	7,051	9,393	8,858	9,090	6,024	8,629	4,233	6,677	5,213	5,533
Σ(δ_i f_i η_N,i)/Σδ_j (×10⁷ spike.neuron/s per centimeter³)	0.00	3.71	4.95	4.67	4.79	13.36	19.13	9.39	14.80	11.56	12.27
E_ns = Σ P_ns,x × η_N,x (×10¹⁷ ATP/s per centimeter³)	0.76	0.76	0.76	0.76	0.76	0.76	0.76	0.76	0.76	0.76	0.76
E_s = P_s × Σ(δ_i f_i η_N,i)/Σδ_j (×10¹⁷ ATP/s per centimeter³)	0.00	1.79	2.38	2.24	2.30	1.53	2.19	1.07	1.69	1.32	1.40
E_tot = E_ns + E_s (×10¹⁷ ATP/s per centimeter³)	0.76	2.55	3.14	3.01	3.07	2.29	2.95	1.84	2.45	2.08	2.16
calcCMR_glc(ox) (μmol/g per minute)	0.22	0.72	0.89	0.85	0.87	0.65	0.83	0.52	0.69	0.59	0.61
measCMR_glc(ox) (μmol/g per minute)	0.20	0.63	0.90	0.82	0.91	0.63	0.90	0.49	0.68	0.61	0.63

Details in Calculations. The calculated CMR_glc(ox) [calcCMR_glc(ox)] was determined from Eq. 3. The measured CMR_glc(ox) [measCMR_glc(ox)] was determined from Eq. 4 assuming OGI of 5.6. AR, awake rest; AS, awake stimulation; CR, α-chloralose rest; CS, α-chloralose stimulation; HR, halothane rest; HS, halothane stimulation; PR, pentobarbital; UR1, urethane rest; UR2, urethane rest; US1, urethane stimulation; US2, urethane stimulation.

*Details in SI Text, section 1 and see Fig. 1A for comparison between calcCMRglc(ox) and measCMRglc(ox).

^†Σδ_j was 1.90 mm (with P_s = 4.81 × 10⁹ ATP/spike per neuron; see red circles in Fig. 1A).

^‡Σδ_j was 0.45 mm [with P_s′ = (0.45/1.90) × P_s; see orange circles in Fig. 1A].