Scientists map 600,000 neurons across 279 regions to reveal how brains make decisions

Scientists have mapped the activity of 600,000 neurons across 279 brain regions in mice, revealing how decisions are made. This unprecedented dataset, collected over seven years, tracks neural signals from sensory input through motor action and reward processing, offering a comprehensive view of the decision-making process. The findings challenge previous models by showing widespread, coordinated neural activity rather than localized clusters, potentially reshaping our understanding of complex behaviors.