TABLE 1.

Parameters of vascular dynamics across the active region shown in Fig 6 during 4 second forepaw stimulus. Data were acquired using rapid full-field two-photon microscopy (data processing methods are described in supplementary data Fig S7). (n) describes the number of sites examined, with 4 stimulus repetitions at each site.

	Arterioles	Venules
% diameter change	16.8% ± 5.5% (n = 109)	−0.15% ± 0.72% (n = 28)
Resting diameter	19 ± 8 μm, (6.5 to 39μm)	31 ± 10 μm (20 to 61 μm)
% RBC density change	*	6.4% ± 8.6% (n=5)
Resting RBC density	55% ± 4% (n=5)	46% ± 4% (n=5)
% speed change	**	34.0% ± 13.5% (n=5)
Resting speed	**	105 ± 36μm s−1 (57 – 152μm s−1)
% flow change	**	53% ± 17% (n=5)

^*RBC density changes not measurable in dilating arterioles due to depth-of-field effects

^**Arteriolar speed is too fast to measure with our current acquisition rate.