In relation to the dissemination of results from Klaus Martiny's Ph.D. thesis on bright light therapy as an augmenting strategy in major depression, our research unit has achieved close collaboration with some of the world's leading experts in chronotherapeutics: Professor Anna Wirz-Justice in Basel, Switzerland, Franscesco Benedetti in Milano, Italy, Michael Terman in New York, Mathias Berger in Freiburg, Germany and Joseph Wu at the University of California, Irvine. The basic idea of the present study comes from this group which over many years has performed and reported clinical studies in chronotherapeutics. We hope that our research unit will be able to conduct this study, as required, in a large patient sample and under the guidance of this group.