Modeling Single-Choice Rapid Button Press Tasks Across Conditions with HDDM

[xinlei ji]

Hello HDDM Community,

 

I am working on a study involving a rapid button press task where participants are asked to respond as quickly as possible under various conditions that I am interested in investigating. In this task, there is only one response option available to participants, which is to press a key as fast as they can. The program defines a response as correct (i.e., the reaction time is less than a calculated threshold (automatically by the programme), indicating a sufficiently fast reaction) or incorrect (i.e., the reaction time exceeds this threshold, indicating a reaction that is not fast enough).

Given the task's nature and its focus on reaction speed between different conditions rather than choice accuracy, I think I could use HDDM for modeling this data, but I am not sure. Specifically, I am interested in understanding how the different conditions I am studying might influence the participants' ability to respond rapidly

Could you please advise on whether HDDM is suitable for modeling such single-choice, rapid response tasks, and if so, should the analysis focus solely on the distribution of correct reaction times, or is there a way to meaningfully include incorrect reaction times as well to gain a fuller understanding of the data?

Any guidance or references to similar studies that have successfully utilized HDDM for such tasks would be greatly appreciated.

Thank you in advance for your assistance.

 

Best regards,

 Roy