Neurovascular imaging.

but also well-controlled manipulations (Allegra Mascaro et al., 2010; Kleinfeld et al., 2011) crucial for testing causality rather than simply establishing a correlation between measurement parameters (that does not automatically imply that one of the parameters drives the other). Moreover, the present collection of papers reaches well beyond the current state of knowledge, defining important questions and roadmaps for future research (Buxton, 2010; Cauli and Hamel, 2010; Hamilton et al., 2010; Vazquez et al., 2010; Kleinfeld et al., 2011; Lin et al., 2011). For us, Neurovascular Imaging is a lifetime-long affair that combines the magic of imaging (“seeing is believing”) with the enigma of neurovascular communication waiting to be resolved, and the excitement of basic discovery with satisfaction of the usefulness/medical relevance of the results. We hope that the present collection of papers will be of particular encouragement for the young people in the field. The Neurovascular Imaging train is on a fast track toward genuine understanding of neurovascular and neurometabolic mechanisms with outstanding clinical importance.