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UiL OTS Labs

Experiments overview


This page refers to collections of custom-made experiments that we frequently use in the UiL OTS lab. Please send a software-development request if you require a custom-made experiment or contact one of the developers.


There are three sources for experiment templates written for the experimental framework Zep:

  1. Many Zep templates are available on the Beexy Zep 1 website and the the Beexy Zep 2 website. These Beexy Zep templates are typically simpler (for instance, they don’t contain group support) than the templates listed below.
  2. More complex Zep experiments can be found in the UiL OTS lab GitHub repositories . These are custom-made to suit the needs of specific researchers.
  3. Below is a list of custom-made Zep experiments that are used quite broadly in the UiL OTS lab. Some of these scripts are also available (in a simpler, more bare-bones form) on the Beexy website. When a script occurs both on the Beexy site and below on this page, you will probably want to use the version from this page.


Presentation® is a stimulus delivery and experiment control framework by Neurobehavioral Systems. There are two sources for Presentation® experiments:

  1. Many scripts are available in the Neurobehavioural Systems experiment archive.
  2. Custom-made Presentation® experiments by the UiL OTS lab can be found in the UiL OTS lab Presentation GitHub repositories. Please note that the UiL OTS lab does not officially support Presentation®!


All experiment scripts listed and on the repositories are released under the terms of the GNU General Public License (GPLv2). They are distributed in the hope that they will be useful, but with absolutely no warranty. It is your responsibility to carefully study and test each script before using it for your research.