OSARI, an Open-Source Anticipated Response Inhibition task

Jason He, Rebecca Hirst, Rohan Puri, James Coxon, Winston Byblow, Mark Hinder, Patrick Skippen, Dora Matzke, Andrew Heathcote, Corey Wadsley, Tim Silk, Christian Hyde, Dinisha Parmar, Ernest Pedapati, Donald Gilbert, David Huddleston, Stewart Mostofsky, Inge Leunissen, Hayley MacDonald, Nahian ChowdburyMatthew Gretton, Tess Nikitenko, Bram Zandbelt, Luke Strickland, Nicolaas Puts

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The stop-signal paradigm has become ubiquitous in investigations of inhibitory control. Tasks inspired by the paradigm, referred to as stop-signal tasks, require participants to make responses on go trials and to inhibit those responses when presented with a stop-signal on stop trials. Currently, the most popular version of the stop-signal task is the ‘choice-reaction’ variant, where participants make choice responses, but must inhibit those responses when presented with a stop-signal. An alternative to the choice-reaction variant of the stop-signal task is the ‘anticipated response inhibition’ task. In anticipated-response inhibition tasks, participants are required to make a planned response that coincides with a predictably timed event (such as lifting a finger from a computer key to stop a filling bar at a predefined target). Anticipated-response inhibition tasks have some advantages over the more traditional choice-reaction stop-signal tasks and are becoming increasingly popular. However, currently, there are no openly available versions of the anticipated response inhibition task, limiting potential uptake. Here, we present an open-source, free, and ready-to-use version of the anticipated-response inhibition task, which we refer to as the OSARI (the Open-Source Anticipated Response Inhibition) task.
Original languageEnglish
JournalBehavior Research Methods
Early online date9 Nov 2021
Publication statusE-pub ahead of print - 9 Nov 2021


  • Behavioral Inhibition
  • Inhibition
  • Stopping
  • anticipation
  • executive functioning
  • opensource
  • stop-signal task


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