Dopamine is the brain's motivational spark, driving us to chase what feels good, say scrolling another reel on social media, and steer clear of what doesn't, like touching a hot stove. But scientists haven't fully understood how dopamine helps us learn to avoid bad outcomes -- until now. A new study shows that dopamine signals in two key brain areas involved in motivation and learning respond differently to negative experiences, helping the brain adapt based on whether a situation is predictable or controllable. While previous research has shown that dopamine can respond to negative experiences, this is the first study to track how those signals evolve over time as animals move from novices to experts in avoiding them.
Read more …How dopamine helps us learn to avoid bad outcomes
A multi-state study reveals that many high-risk adults diagnosed with influenza (flu) in emergency departments and urgent care centers are not receiving timely antiviral treatment. Researchers found that only slightly more than half of these patients received antiviral prescriptions, and of those, only 80 percent were filled. This gap in treatment could increase the risk of severe flu complications, particularly for older adults and those with underlying conditions.
Read more …Study reveals gaps in flu treatment for high-risk adults