**Preprocessing.** Same as Experiment 1 and 2, see [https://osf.io/f5q7v/][1]. We will detect post-saccadic oscillations (PSO), as described by Schweitzer & Rolfs (2021).
**Analyses.** Analyses (including reverse correlation analyses) will largely be similar to those conducted for Experiment 1 ([https://osf.io/f5q7v/][2]) and Experiment 2 ([https://osf.io/hf973/][3]), only that dependent variables are now (instead of correct responses) perceived extent and direction of motion smear, as indicated by the length and angle of the motion filter.
**References**
Schweitzer, R., & Rolfs, M. (2021). Definition, modeling and detection of saccades in the face of post-saccadic oscillations. bioRxiv. doi: [https://doi.org/10.1101/2021.03.24.436800][4]
[1]: https://osf.io/f5q7v/
[2]: https://osf.io/f5q7v/
[3]: https://osf.io/hf973/
[4]: https://doi.org/10.1101/2021.03.24.436800