The Journal of neuroscience : the official journal of the Society for Neuroscience Jasper Akerboom, Tsai-Wen Chen, Trevor J Wardill, …, Douglas S Kim, Eric R Schreiter, Loren L Looger DOI: 10.1523/jneurosci.2601-12.2012 PMID: 23035093 PMCID: PMC3482105