This task was originally uploaded to gitlab for use through the Psychopy Pavlovia online study system as a subcomponent of a self/agency study [1]. Here participants have to work out which of 4 squares are following their movements.
PBR_Beach_cursorIncuded.mp4
For scripts relating to the analysis of data produced by this task in the paper [1] go to:
Dr. J. E. Robinson & Dr. K. Perrykkad
- online experiment code (psychopy and psychoJS) code translate, adapted and developed based on matlab code for eye tracking experiment [2] developed by K Perrykkad.
- .mp4 video shows an example experiment trial. Note that a cursor (crosshairs) would not be present in a real experimental trial. It is shown here only for context.
- PsychoJS version should be set to v2020.2 for proper running of the task.
- In our experience the task has a high rejection rate due to several factors such as subjects' internet connections, please read the main citation [1] for detail on our rejection rates and criteria. Feel free to suggest optimisations that might make, for example, the frame rate more consisent.
If you use this task please contribute your variant/versions to a new branch.
If you use this repository to build a variant/versions for any subsequent publication please cite the following papers:
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Perrykkad, K., Robinson, J. E., & Hohwy, J. (2021). Foraging for the Self: Environment selection for agency inference. Psychonomic Bulletin & Review.
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Perrykkad, K., Lawson, R. P., Jamadar, S., & Hohwy, J. (2021). The effect of uncertainty on prediction error in the action perception loop. Cognition, 210, 104598.