Within-subject reaction time variability: Role of cortical networks and underlying neurophysiological mechanisms.

ABSTRACT: Variations in reaction time are a ubiquitous characteristic of human behavior. Extensively documented, they have been successfully modeled using parameters of the subject or the task, but the neural basis of behavioral reaction time that varies within the same subject and the same task has been minimally studied. In this paper, we investigate behavioral reaction time variance using 28 datasets of direct cortical recordings in humans who engaged in four different types of simple sensory-motor reaction time tasks. Using a previously described technique that can identify the onset of population-level cortical activity and a novel functional connectivity algorithm described herein, we show that the cumulative latency difference of population-level neural activity across the task-related cortic

SUBMITTER: Paraskevopoulou SE 

PROVIDER: S-EPMC8882389 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature