Timing along the cardiac cycle modulates neural signals of reward-based learning.

ABSTRACT: Natural fluctuations in cardiac activity modulate brain activity associated with sensory stimuli, as well as perceptual decisions about low magnitude, near-threshold stimuli. However, little is known about the relationship between fluctuations in heart activity and other internal representations. Here we investigate whether the cardiac cycle relates to learning-related internal representations - absolute and signed prediction errors. We combined machine learning techniques with electroencephalography with both simple, direct indices of task performance and computational model-derived indices of learning. Our results demonstrate that just as people are more sensitive to low magnitude, near-threshold sensory stimuli in certain cardiac phases, so are they more sensitive to low magnitude absol

SUBMITTER: Fouragnan EF 

PROVIDER: S-EPMC10998831 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature