Identifying brain circuits causally related to OCD

Obsessive-compulsive disorder (OCD) can be an extremely incapacitating neuropsychiatric condition.

The symptoms of people who suffer from OCD can entail washing their hands or showering over and over again, repeatedly checking whether they switched off the gas in the kitchen or locked their front door.

In the most extreme cases, this takes up so much of their time and energy that they become unable to leave their house, work, develop meaningful relationships or interact with other people. ...