Examining reaction time variability on the stop-signal task in the ABCD study.

ABSTRACT:

Objective

Reaction time variability (RTV) has been estimated using Gaussian, ex-Gaussian, and diffusion model (DM) indices. Rarely have studies examined interrelationships among these performance indices in childhood, and the use of reaction time (RT) computational models has been slow to take hold in the developmental psychopathology literature. Here, we extend prior work in adults by examining the interrelationships among different model parameters in the ABCD sample and demonstrate how computational models of RT can clarify mechanisms of time-on-task effects and sex differences in RTs.

Method

This study utilized trial-level data from the stop signal task from 8916 children (9-10 years old) to examine Gaussian, ex-Gaussian, and DM indicators of RTV. In addition to describi

SUBMITTER: Epstein JN 

PROVIDER: S-EPMC9971352 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature