Presenter(s): Dominique Denning—Human Physiology
Faculty Mentor(s): Nicole Swann, Kelsey Schultz
Session: Prerecorded Poster Presentation
For the past few decades, a major tool used to study inhibitory control has been the Stop-Signal Task (SST) . This task gives an estimate of how well individuals can inhibit initiated movements . The speed of stopping can be estimated as the stop-signal reaction time, or SSRT . This task has proven useful, but there are limitations . For example, SSRT can only be estimated overall and not at the individual trial level . Additionally, the standard stop task involves stopping a planned movement, rather than stopping a movement which is already ongoing . To address these limitations, we have developed a new continuous movement stop task (CMST) . This task directly measures the termination of an ongoing movement, allowing measurement of stopping speed at the individual trial level . It is currently unknown how stopping measures with this new task relates to SSRT measured with the conventional stop signal task . Our research addresses this question . Thirty participants will complete both the standard stopping task and our new continuous movement stopping task . We will compare stopping speed derived from our novel task to conventional SSRTs estimated by the standard stop task . The results of our study will help us better understand the relationship between the two tasks and also help establish the generalizability of inhibitory control .