Optogenetics and OCD

Stimulating brain cells with light reveals the dysfunctional circuitry that causes obsessive-compulsive disorder.

Written byRuth Williams
| 4 min read

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WIKIMEDIA, LARS KLINTWALL MALMQVISTThe abnormal brain activity seen in patients with obsessive-compulsive disorder (OCD) is a likely cause of the condition, according to two papers published today (June 6) in Science. Both studies used optogenetic techniques, which allow specific brain cells to be turned on and off at the flick of a light switch, to link the abnormal brain activity to OCD behavior in mice.

“It’s outstanding neuroscience in that the tandem of studies complement one another beautifully, but also in that they leverage state-of-the-art technology,” said Scott Rauch, a professor of psychiatry at McLean Hospital, in Belmont Massachusetts, who was not involved in the studies. “Both papers are exceptional.”

“These two papers have confirmed the causal relationship between [neural] circuit abnormalities and [OCD-like] behavior,” said Chris Pittenger, a professor of psychiatry at Yale University in New Haven, Connecticut, who was also not involved in the research. “And that’s of substantial value.”

OCD is a debilitating condition characterized by intrusive thoughts that cause anxiety as well as compulsive repetitive behaviors. “I’m a psychiatrist as well as a researcher and I primarily treat OCD patients,” said Susanne Ahmari, a professor of ...

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  • ruth williams

    Ruth is a freelance journalist. Before freelancing, Ruth was a news editor for the Journal of Cell Biology in New York and an assistant editor for Nature Reviews Neuroscience in London. Prior to that, she was a bona fide pipette-wielding, test tube–shaking, lab coat–shirking research scientist. She has a PhD in genetics from King’s College London, and was a postdoc in stem cell biology at Imperial College London. Today she lives and writes in Connecticut.

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