This open source miniature fluorescence microscope uses wide-field fluorescence imaging to record neural activity in awake, freely behaving mice. The Miniscope has a mass of 3 grams and uses a single, flexible coaxial cable (0.3mm to 1.5mm diameter) to carry power, control signals, and imaging data to open source Data Acquisition (DAQ) hardware and software. Miniscope.org provides a centralized location for sharing design files, source code, and other relevant information so that a community of users can share ideas and developments related to this important imaging technique. Our goal is to help disseminate this technology to the larger neuroscience community and build a foundation of users that will continue advancing this technology and contribute back to the project. While the Miniscope system described here is not an off-the-shelf commercial solution, we have focused on making it as easy as possible for the average neuroscience lab to build and modify, requiring minimal soldering and hands on assembly.
Video demonstrating GCamp6F imaging in CA1 using the UCLA Miniscope