Obsessive–compulsive disorder (OCD) negatively impacts the lives of millions of people worldwide, but more effective treatments could be on the way after researchers were able to identify specific neural biomarkers associated with the condition.

These biomarkers are patterns of brain activity present in people with OCD when they're acting compulsively, and which don't show up the rest of the time. While it's difficult to know exactly what these firing neurons are doing, their patterns could help understand the condition – and figure out how to treat it.

Led by a team from the University of Amsterdam in the Netherlands, the researchers looked at data from electrodes implanted in the brains of 11 people with chronic OCD, seeing how their brain activity changed over time in reaction to c

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