A thalamus–brainstem attractor network drives history-biased decisions

Researchers identified a thalamus-brainstem attractor network that influences decision-making in zebrafish on June 10, 2026. This network, revealed through whole-brain, cellular-resolution imaging, encodes recent behavioral history and shapes subsequent choices. The study, published in Nature, details how this hierarchical network operates within the zebrafish brain. The findings suggest a fundamental mechanism for how past experiences bias present actions, a principle potentially applicable across species. The research utilized advanced imaging techniques to map neural activity at an unprecedented level of detail, allowing for the observation of network dynamics during decision-making tasks. This discovery provides new insights into the neural underpinnings of learning and behavioral adaptation.