An interactive visualisation of the Wiener drift diffusion model, as formulated by Ratcliff (1978). Visualisation inspired by the visualisation from Alexandrowicz (2020).
The application is available online at https://barelysignificant.shinyapps.io/shiny_DDM/.
A revised (better) version is available at https://lnalborczyk.github.io/apps/ddm/.
Alexandrowicz, R. W. (2020). The diffusion model visualizer: an interactive tool to understand the diffusion model parameters. Psychological Research.
Ratcliff, R. (1978). A theory of memory retrieval. Psychological Review, 85(2):59–108.