Decreasing Alertness Modulates Perceptual Decision-Making.

ABSTRACT: The ability to make decisions based on external information, prior knowledge, and evidence is a crucial aspect of cognition and may determine the success and survival of an organism. Despite extensive work on decision-making mechanisms/models, understanding the effects of alertness on neural and cognitive processes remain limited. Here we use EEG and behavioral modeling to characterize cognitive and neural dynamics of perceptual decision-making in awake/low alertness periods in humans (14 male, 18 female) and characterize the compensatory mechanisms as alertness decreases. Well-rested human participants, changing between full-wakefulness and low alertness, performed an auditory tone-localization task, and its behavioral dynamics were quantified with psychophysics, signal detection theory,

SUBMITTER: Jagannathan SR 

PROVIDER: S-EPMC8802921 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature