Table 3.
Estimated model parameters for cerebral blood flow response to hypoxia during control, l-NMMA and phenylephrine infusion
| Day | G | ( )B
|
τon | τoff | Td |
|---|---|---|---|---|---|
| Control | 0.58 ± 0.24 | 51.34 ± 7.74 | 41.95 ± 27.91 | 56.04 ± 45.12 | 5.74 ± 2.06 |
| l-NMMA | 0.53 ± 0.18 | 56.24 ± 9.01 | 45.89 ± 29.77 | 54.15 ± 52.86 | 4.41 ± 1.67 |
| Phenylephrine | 0.55 ± 0.18 | 54.2 ± 5.4 | 24.4 ± 15.4 | 73.6 ± 54.1 | 5.4 ± 3.7 |
Values are means ±s.d. Abbreviations. G, gain term for the response (cm s−1 (% desaturation)−1); (
)B, baseline of 
when no hypoxia is present (cm s−1); τon and τoff, time constants for the on and off responses (s); Td, time delay (s).