A new study suggests the brain begins making decisions much earlier than scientists previously thought, with researchers finding that even primary sensory regions are influenced by higher brain areas through rapid feedback loops, rather than simply passing information forward. Decision-making signals appear as early as the primary somatosensory cortex, the brain's first cortical relay for touch and movement sensation, rather than emerging only in the frontal and premotor regions. The finding, published by researchers at the University of Illinois Urbana-Champaign, rewrites classical models of how the brain organizes thought. This more dynamic view of brain function could help engineers design future AI systems that think more like biological brains while using far less power.
The brain is voting before the conscious mind even knows an election is happening.