Neural basis of compositional control.

Neural activity in humans reveals a tripartite system involving hippocampus, anterior cingulate cortex, and orbitofrontal cortex that orchestrates continuous goal-directed behavior with a 3-part division.

• Why it matters: Understanding how the brain manages continuous, goal-directed actions is crucial for insights into naturalistic decision-making and adaptive behavior, filling a gap in knowledge about neural control mechanisms.
• What they did: The study employed a control-theoretic decomposition and a prey-pursuit task with human participants, analyzing brain activity to identify neural correlates of policy blending and goal management.
• The result: Findings show hippocampal neurons encode and update planning states, anterior cingulate neurons predict policy shifts, and orbitofrontal activity reflects current value structures, enabling a comprehensive model of continuous control.