A plant for pain in the brain | Science

We define pain by its inconvenience. This is not the case in the brain, where a sensation and its unpleasant quality seem to be independent. Scientists have long understood the signals that nerves use to signal pain in the brain. Researchers have discovered a set of neurons in a part of the mouse brain called the amygdala, responsible for wrapping this signal, reported NPR. The new study, published this week in Science, found that when these neurons were turned off, the mice could still perceive what was painful before, but they did not seem to care. Ideas could inspire new treatments to relieve pain.