Table 2.

Mean changes, relative to non-CB perfused, in steady-state air-breathing in response to hypercapnic and/or hypocapnic CB perfusates in four CBD dogs

Dog	(mmHg)	Δ (mmHg)	Δ (L · min−1)	ΔVT (L)	Δfb (breaths · min−1)	ΔVT/TI (L · s−1)	ΔDiRR (% of control)
B	19	−0.3	0.6	0.04	0.2	0.05	−0.8
D	24	−0.7	−0.1	−0.03	0.1	0.00	6.7
D	66	−1.1	−0.2	0.03	−1	0.01	1.0
N	75	0.3	1.2	−0.32	1.8	0.01	−31.9
Q	24	−1.6	1.2	0.11	−3.4	0.09	−33.7
Q	68	0.5	−0.4	0.02	−2.8	−0.01	−7.9