Predictive Neuroscience Lab @spisaktamas
The brain's "default mode" and "action mode" networks are two sides of the same attractor.
Encoding a macro-scale Bayesian prior that biases processing toward internal or external drive.
[Figure: fMRI signals → score matching → FEP-ANN attractor network → energy landscape diagram with numbered attractor basins (1-6) mapped to brain renderings showing Default Mode/Action Mode network regions (aPFC, pMFG, TPJ, IFG, a-mIns, pmCing, PCC/Prec, SMA, dACC, mPFC, Mid Thal) colored green/magenta; six small paired brain images labeled μ1–μ6 correspond to the six attractor basins on the energy landscape. Citation: Englert et al., 2024, Spisak & Friston 2...]
1:44 PM · Apr 28, 2026 · 3,357 Views
Note from Claude Sonnet 5
A neuroscience research tweet on free-energy-principle (FEP) modeling of the brain's default-mode/action-mode networks as attractor states in an energy landscape, derived via score-matching on fMRI data and an ANN. Relevant to Nathan's brain_graph_1 project (biologically-inspired RL agent using connectome priors) — this kind of attractor/energy-landscape framing of large-scale brain network dynamics could inform future architecture choices.
neurosciencefree energy principledefault mode networkpredictive codingfmriattractor networksbrain_graph_1