Scientists discover that brain region acts like an “anxiety meter,” scaling activity to match threat level
Scientists have discovered that a specific area of the brain, called the ventral hippocampus, functions like an “anxiety meter.” This brain region increases its activity in proportion to the level of anxiety experienced. Using a specially designed maze for mice, the scientists showed in new research published in The Journal of Neuroscience that as the animals encountered increasingly anxiety-provoking situations, the activity of neurons in their ventral hippocampus rose accordingly. Anxiety is a fundamental emotion that helps animals and humans survive by preparing them to face danger. It’s a natural response to threats, prompting vigilance and action. However, when anxiety becomes excessive or persistent, it can lead to significant problems, such as chronic anxiety disorders. These conditions affect millions worldwide and can severely impact quality of life. While some treatments for anxiety exist, they are not always effective for everyone, highlighting the urgent need to better understand the brain mechanisms behind anxiety. “Anxiety is a deeply personal yet broadly experienced state. While some level of anxiety is normal and even beneficial, excessive or persistent anxiety …