1. A computer-implemented method for obtaining and presenting a functional distribution of brain structures, the method comprising: obtaining contact data specifying the locations, within the brains of a plurality of individuals, of active electrical contacts which detect a brain structure; generating an active contact model for each of the active contacts, wherein each active contact model represents a physical shape and/or electrical properties of one of the active contacts; transforming the generated active contact models into a common space for the individuals; calculating a probability function for locating the brain structure based on the obtained contact data and the transformed active contact models, said probability function indicating the space density of the active contacts; and presenting a representation of the calculated probability function.