Exploring complex and integrated information during sleep.
Neuroscience of consciousness January 1, 2024 Keiichi Onoda, Hiroyuki Akama 2 citations
The Integrated Information Theory proposes that consciousness arises from the integration of information within a system, and the degree of consciousness depends on the extent of that integration. When consciousness is lost, the core complex of consciousness disintegrates and Φ measures, reflecting integrated information, diminish. Using functional magnetic resonance imaging of global brain networks during tasks and sleep, the authors discovered that a complex within the frontoparietal network remained constant across tasks, but its regional distribution collapsed in early sleep. Φ measures decreased as sleep progressed under limited analysis conditions. These findings align with and support the theory's predictions.