Dokument: Scale-free dynamics in the core-periphery topography and task alignment decline from conscious to unconscious states
| Titel: | Scale-free dynamics in the core-periphery topography and task alignment decline from conscious to unconscious states | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=67450 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20241111-105736-9 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Klar, Philipp [Autor] Çatal, Yasir [Autor] Langner, Robert [Autor] Huang, Zirui [Autor] Northoff, Georg [Autor] | |||||||
| Dateien: |
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| Beschreibung: | Scale-free physiological processes are ubiquitous in the human organism. Resting-state functional MRI studies observed the loss of scale-free dynamics under anesthesia. In contrast, the modulation of scale-free dynamics during task-related activity remains an open question. We investigate scale-free dynamics in the cerebral cortex’s unimodal periphery and transmodal core topography in rest and task states during three conscious levels (awake, sedation, and anesthesia) complemented by computational modelling (Stuart-Landau model). The empirical findings demonstrate that the loss of the brain’s intrinsic scale-free dynamics in the core-periphery topography during anesthesia, where pink noise transforms into white noise, disrupts the brain’s neuronal alignment with the task’s temporal structure. The computational model shows that the stimuli’s scale-free dynamics, namely pink noise distinguishes from brown and white noise, also modulate task-related activity. Together, we provide evidence for two mechanisms of consciousness, temporo-spatial nestedness and alignment, suggested by the Temporo-Spatial Theory of Consciousness (TTC). | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
Klar, P., Çatal, Y., Langner, R., Huang, Z., & Northoff, G. (2023). Scale-free dynamics in the core-periphery topography and task alignment decline from conscious to unconscious states [OnlineRessource]. Communications Biology, 6, Article 499. https://doi.org/10.1038/s42003-023-04879-y | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Medizinische Fakultät | |||||||
| Dokument erstellt am: | 11.11.2024 | |||||||
| Dateien geändert am: | 11.11.2024 |
