LSD-induced increase of Ising temperature and algorithmic complexity of brain dynamics.

ABSTRACT: A topic of growing interest in computational neuroscience is the discovery of fundamental principles underlying global dynamics and the self-organization of the brain. In particular, the notion that the brain operates near criticality has gained considerable support, and recent work has shown that the dynamics of different brain states may be modeled by pairwise maximum entropy Ising models at various distances from a phase transition, i.e., from criticality. Here we aim to characterize two brain states (psychedelics-induced and placebo) as captured by functional magnetic resonance imaging (fMRI), with features derived from the Ising spin model formalism (system temperature, critical point, susceptibility) and from algorithmic complexity. We hypothesized, along the lines of the entropic br

SUBMITTER: Ruffini G 

PROVIDER: S-EPMC9943020 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature