There are a bunch of GCaMP6 mouse lines out now, from Hongkui Zeng (Ai93, Ai95, Ai96 are available), Cris Niell, GENIE (paper), and others. Have you tried any of these? Labrigger has seen data from many of the lines, and they all look good. Tell us what you think in the comments (anonymous comments are always welcome).
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