Dissociable cortical-hippocampal dopamine dynamics support memory-guided behavior.

Dopamine dynamics in the prefrontal cortex and hippocampus differentially support memory-guided approach and avoidance behaviors, with distinct roles in threat and reward learning.

• Why it matters: Understanding how dopamine signals in these brain regions influence flexible decision-making under conflicting motivations is crucial for insights into adaptive behavior and related disorders.
• What they did: Simultaneous monitoring of dopamine release and neural activity in the prelimbic cortex and ventral CA1 during threat, reward, and conflict tasks revealed region-specific responses and their reorganization during decision-making.
• The result: Distinct dopamine signals in PL and vCA1 predict behavioral outcomes and adapt during approach-avoidance conflicts, highlighting their complementary roles in memory-guided, motivated actions.