“It’s a novel observation that would be really interesting to pursue.”A powerful wave Brainwaves were first noticed by German psychiatrist Hans Berger.In 1929, he published a paper describing the repeating waves of current he observed when he placed electrodes on people’s scalps.Studies have strongly linked brainwaves to memory consolidation during sleep, and implicated them in processing sensory inputs and even coordinating consciousness.
Neurons communicate using electrical impulses created by the flow of ions into and out of each cell.
“The result was so mind-boggling and so robust, it took a while for the idea to sink in, but we knew we needed to work out a way of trying out the same thing in humans,” Tsai says.
Scientists identified the waves of electrical activity that constantly ripple through the brain almost 100 years ago, but they have struggled to assign these oscillations a definitive role in behaviour or brain function.
Now, a growing body of evidence, including Tsai’s findings, hint at a meaningful connection to neurological disorders such as Alzheimer’s and Parkinson’s diseases.
The work offers the possibility of forestalling or even reversing the damage caused by such conditions without using a drug.