Extended Data Figure 5. Onset latency of dilation in parenchymal vessels.

a, Vessel-by-vessel comparison of the onset latency difference between the response to preferred and orthogonal (null) stimulus orientations. Each whisker diagram represents a single vessel with the circle position indicating the standardized mean difference (SMD – calculated as Hedge's g) in latency. The whisker length represents the 95% confidence interval (CI) of the SMD. The size of the circle represents the weight given to the vessel when calculating the population summary SMD. The population summary SMD is shown by the solid square with the error bands giving the 95% CI. The population average shows that parenchymal vessels responded significantly faster for the preferred than the null stimulus orientation. b, As a control, the analysis shown in a was repeated after randomizing the assignment of preferred and null on individual trials for each vessel. All data are from cat visual cortex layer 2/3 (n = 79 vessels in 18 cats).