GoKawiilScientists map competing brain circuits behind risk-versus-reward decisions
Researchers recording brain activity directly from six people found two adjacent regions in the orbitofrontal cortex that compete during risky decisions, described in a Nature Neuroscience study published September 15. One region activates when a person leans toward pursuing a reward, while the other activates when they lean toward avoiding risk, with signals rapidly alternating between the two before a final choice is made.
GoKawiil's interpretation of the reporting above, not reported fact.
This offers a rare, millisecond-level view of how the human brain physically negotiates risk-reward tradeoffs, rather than relying on indirect imaging methods. Understanding this neural tug-of-war could help explain and eventually treat conditions like anxiety, OCD, addiction and gambling disorders that involve dysfunctional risk assessment.
- Two neighboring orbitofrontal cortex regions show opposing, anti-correlated activity during risky decisions.
- One region favors reward pursuit while the other favors risk avoidance, competing in real time before a choice is made.
- Findings could inform research into psychiatric conditions marked by abnormal risk-taking, such as addiction and OCD.
Source: nature.com — Naddaf, 2026-09-17
Published there as: “Take a risk or play it safe? Neuronal tug-of-war helps the brain decide”
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