An adaptive paradigm for detecting the individual duration of the preparatory period in the choice reaction time task

Gurgen Soghoyan, Vladislav Aksiotis, Anna Rusinova, Andriy Myachykov, Alexey Tumyalis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


According to the sequential stage model, the selection and the execution of a motor response are two distinct independent processes. Here, we propose a new adaptive paradigm for identifying the individual duration of the response preparatory period based on the motor reaction time (RT) data. The results are compared using the paradigm with constant values of the preparatory period. Two groups of participants performed on either an easy (Group 1) or a hard (Group 2) response selection task with two types of stimuli based on the preparatory period parameters: (1) stimuli with a constant preparatory period duration of 0 or 1200 ms and (2) stimuli with adaptive preparatory period durations. Our analysis showed an increase in the duration of the response selection process as a function of increasing task complexity when using both paradigms with constant and adaptive values of the preparatory period duration. We conclude that the adaptive paradigm proposed in the current paper has several important advantages over the constant paradigm in terms of measuring the response accuracy while being equally efficiently in capturing other critical response parameters.
Original languageEnglish
Article numbere0273234
Number of pages17
JournalPLoS One
Issue number9
Publication statusPublished - 9 Sep 2022

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