In recent years, connectivity has been recognized as a major determinant of brain function. The notion of connectivity encompasses physical connectedness between brain areas and structures (structural connectivity), correlations between activations of different brain areas (functional connectivity), and the influence one area exerts over another (causality, effective connectivity). The methodology to detect and quantify these types of connectivity has made substantial progress in the last couple of years. This one-day workshop aims at familiarizing the participants with some of the key approaches, and offering a discussion platform for the advantages and drawbacks of the different concepts.