Serotonin reuptake inhibitors (SRIs) are a class of drugs that affect the brain’s serotonin system, and doctors most commonly prescribe them as antidepressants. SRIs increase the levels of serotonin ...

Serotonin is often referred to as the "happiness molecule." It plays a critical role in affecting mood levels and is also a neurotransmitter that sends signals within the brain and the body.

Antidepressants treat symptoms of depression by increasing levels of brain signaling molecules (neurotransmitters) such as serotonin, as with the most widely used type of antidepressant, selective ...

A study published in Nature reveals the functional relevance of tumor-neuron interactions that regulate the growth of ependymoma brain tumors. The study, conducted by researchers at Baylor College of ...

Research shows that reward-based learning requires the two neuromodulators to balance one another's influence -- like the accelerator and brakes on a car If you've heard of two of the brain's chemical ...

If you’ve heard of two of the brain’s chemical neurotransmitters, it’s probably dopamine and serotonin. Never mind that glutamate and GABA do most of the work — it’s the thrill of dopamine as the ...