About the Authors
Fundación Instituto Leloir, Buenos Aires, Argentina
Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, California, United States of America
The authors have declared that no competing interests exist.
DAL is the lead author. He contributed to the concept, designed and performed the experiments, analyzed the data, and wrote the manuscript. MSE performed stereotactic injections, recorded and analyzed spontaneous activity, and revised the manuscript. VCP performed stereotactic injections, took confocal images, and revised the manuscript. NAM performed and analyzed confocal images. CZ provided unpublished viral vectors and revised the manuscript. HvP contributed with preliminary experiments. FHG contributed to the concept, interpreted the data, and revised the manuscript. AFS is the senior author. He contributed to the concept, designed the experiments, prepared retroviruses, analyzed the data, wrote the manuscript, and provided financial support.