Depression may not be a single biological condition. Researchers at the University of Helsinki have identified five distinct patterns of brain activity among people diagnosed with depression, offering new clues about why symptoms differ from person to person.
The study examined 263 people with depression and 75 healthy participants. Using advanced brain imaging, scientists found differences in how brain regions communicate with one another.
Some participants showed stronger brain connections alongside severe depression, anxiety and repetitive negative thoughts. Others showed weaker connections and more trauma-related symptoms. Certain patterns were also linked to substance abuse and lower overall well-being.
Could This Lead to Better Treatment?
The findings suggest that depression treatment could eventually be tailored to each person's brain activity and symptoms, rather than relying on a one-size-fits-all approach.
However, researchers caution that brain scans cannot yet reliably determine which treatment will work best for an individual. More research is needed before this approach can be used in routine medical care.
The key finding: Depression may involve several different patterns of brain function, which could help scientists develop more personalized treatments in the future.
