Looming visual stimuli are used in behavioral research to trigger rapid innate defensive response of rodents, which is called looming-evoked defensive response. This stimulator is based on a typical protocol shared by two articles1,2, that a black disc expands from a diameter of 2° of visual angle to 20° in 250ms and remains for another 250ms for a single stimulus, and then repeat several times with 500ms pauses1.
- A secondary monitor is required to project stimuli.
- python3.x
pip install -r requirements.txt
python main.py
- Yilmaz, M., & Meister, M. Rapid Innate Defensive Responses of Mice to Looming Visual Stimuli. Current Biology, 23(20), 2011–2015 (2013). https://doi.org/10.1016/j.cub.2013.08.015
- Shang, C., Chen, Z., Liu, A. et al. Divergent midbrain circuits orchestrate escape and freezing responses to looming stimuli in mice. Nat Commun 9, 1232 (2018). https://doi.org/10.1038/s41467-018-03580-7