Strokelitude (wingSTROKE ampLITUDE) is an fview plugin for realtime image analysis for tethered flight fly experiments. It was originally developed in the Dickinson lab at Caltech, and is now maintained by the Straw lab. One goal is to emulate the optical wingstroke analyzer first developed by Karl Götz in Tübingen.

The software has been used as a key method in the following papers:

• Maimon, G., Straw, A.D., and Dickinson, M.H. (2010). Active flight increases the gain of visual motion processing in Drosophila. Nature Neuroscience. PDF and Supplementary video.
• Mamiya, A., Straw, A.D., Tómasson, E., and Dickinson, M.H. (2011) Active and passive antennal movements during visually-guided steering in flying Drosophila. Journal of Neuroscience.

Initial development was done in the laboratory of Michael Dickinson. Development was led by Andrew Straw. Egill Tómasson develped the antennae and head trackers. Gaby Maimon and Akira Mamiya provided continuous suggestions and beta testing. Additional input came from Peter Polidoro, Will Dickson, and Allan Wong.

This is open source software, released under the BSD license. The source code is available at https://github.com/motmot/strokelitude. Discussion happens at the motmot email list.

The following plugin is available:

• jfi_emulator - output amplitude of wingstroke envelope as analog voltage