Large-scale neural dynamics in a shared low-dimensionalstate space reflect cognitive and attentional dynamics
Abstract
Cognition and attention arise from the adaptive coordination of neural systems in response to external and internal demands. The low-dimensional latent subspace that underlies large-scale neural dynamics and the relationships of these dynamics to cognitive and attentional states, however, are unknown. We conducted functional magnetic resonance imaging as human participants performed attention tasks, watched comedy sitcom episodes and an educational documentary, and rested. Whole-brain dynamics traversed a common set of latent states that spanned canonical gradients of functional brain organization, with global desynchronization among functional networks modulating state transitions. Neural state dynamics were synchronized across people during engaging movie watching and aligned to narrative event structures. Neural state dynamics reflected attention fluctuations such that different states indicated engaged attention in task and naturalistic contexts whereas a common state indicated attention lapses in both contexts. Together, these results demonstrate that traversals along large-scale gradients of human brain organization reflect cognitive and attentional dynamics.
Data availability
Raw fMRI data from the SitcOm, Nature documentary, Gradual-onset continuous performance task (SONG) dataset are available on OpenNeuro;https://openneuro.org/datasets/ds004592/versions/1.0.1. Behavioral data, processed fMRI output, and main analysis scripts are published on Github; https://github.com/hyssong/neuraldynamics
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SONG datasethttps://doi.org/10.18112/openneuro.ds004592.v1.0.1.
Article and author information
Author details
Funding
Institute for Basic Science (R015-D1)
- Won Mok Shim
National Research Foundation of Korea (NRF-2019M3E5D2A01060299)
- Won Mok Shim
National Research Foundation of Korea (NRF-2019R1A2C1085566)
- Won Mok Shim
National Science Foundation (BCS-2043740)
- Monica D Rosenberg
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Ethics
Human subjects: Informed consent and consent to publish were obtained from the participants prior to the experiments, and the possible consequences of the study were explained. The study was approved by the Institutional Review Board of Sungkyunkwan University.
Copyright
© 2023, Song et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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