Russian neuroscientists have discovered a new type of «brain waves»
The researchers used fMRI to study the brains of rats under anesthesia induced by medetomidine. The results showed that wave-like oscillations of blood oxygen saturation occur spontaneously under the effect of medetomidine in the area of the cortex of the large hemispheres, thalamuses, and hippocampi of a male rat’s brain. The researchers argue that the waves are the result of interaction of the blood vessels in the brain and the cells of the neuroglia. Researchers believe that the «waves» of the level of oxygen saturation of the blood can reveal certain features of the work of brain-feeding vessels.