The Science & Treatment of Obsessive Compulsive Disorder (OCD) | Huberman Lab Podcast #78

Neural Circuitry

The cortico-striatal-thalamic loop is a crucial neural circuit implicated in OCD, influencing the repetitive thought-action loops characteristic of the disorder. Andrew Huberman explains that while SSRIs can suppress the activity of this loop, they do not work for everyone and come with side effects 1. Animal studies have demonstrated that stimulating this circuit can induce OCD-like behaviors, highlighting its central role in the disorder 2.

The cortico-striatal-thalamic circuit seems to be the main circuit generating OCD-like behavior.

--- Andrew Huberman

Understanding this loop helps in tailoring treatments, as different therapies target various components of this circuit 3.

   

Neurotransmitters

Neurotransmitters, particularly serotonin, play a complex role in OCD treatment. Despite SSRIs being effective for some, there's little evidence that serotonin disruption causes OCD 4. Huberman notes that SSRIs like fluoxetine and sertraline work by increasing serotonin in the synapse, but their side effects vary widely among individuals 5.

There is very little, if any evidence, that the serotonin system is disrupted in OCD.

--- Andrew Huberman

This underscores the importance of personalized treatment plans and ongoing research into alternative therapies like psilocybin, which targets serotonin receptors but has yet to show conclusive results for OCD 4.