RT Journal Article SR Electronic T1 Customizable Open-Source Rotating Rod (Rotarod) Enables Robust Low-Cost Assessment of Motor Performance in Mice JF eneuro JO eNeuro FD Society for Neuroscience SP ENEURO.0123-23.2023 DO 10.1523/ENEURO.0123-23.2023 VO 10 IS 9 A1 Widjaja, Josephine H. A1 Sloan, Douglas C. A1 Hauger, Joseph A. A1 Muntean, Brian S. YR 2023 UL http://www.eneuro.org/content/10/9/ENEURO.0123-23.2023.abstract AB Reliable measurements of motor learning and coordination in mice are fundamental aspects of neuroscience research. Despite the advent of deep-learning approaches for motor assessment, performance testing on a rotating rod (rotarod) has remained a staple in the neuroscientist’s toolbox. Surprisingly, commercially available rotarod instruments offer limited experimental flexibility at a relatively high cost. In order to address these concerns, we engineered a highly-customizable, low-budget rotarod device with increased functionality. Here, we present a detailed guide to assemble this rotarod using simple materials. Our apparatus incorporates a variation of interchangeable rod sizes and designs which provides for adjustable testing sensitivity. Moreover, our rotarod is driven by open-source software enabling bespoke acceleration ramps and sequences. Finally, we report the strengths and weaknesses of each rod design following multiday testing on cohorts of C57BL/6 mice. We expect explorations in deviant rod types to provide a foundation for the development of increasingly sensitive models for motor performance testing along with low-budget alternatives for the research community.