Adjustable Brain Implant Could Identify Seizure Origins

The electrode array is made of a pliable material that's thickness is that of about a quarter of a human hair

A team of researchers has created a flexible brain implant that could eventually be used to identify where a seizure starts in the brain and shut it down.

Brian Litt, M.D., study leader and associate professor of neurology at the University of Pennsylvania School of Medicine, along with Jonathan Viventi, Ph.D., lead author and assistant professor at the Polytechnic Institute of New York University, and a team of researchers, have developed a type of electrode array that adjusts to the brain's surface and could allow for a better understanding of epileptic seizures.

The brain holds billions of neurons that transmit electrical pulses, and when a seizure occurs, these pulses occur in an abnormal fashion. The pulses become rapid "bursts" that lead to loss of consciousess and convulsions. While there are over 20 drugs available to treat epilepsy, they don't always control seizures properly.

Surgery is another option for individuals with epilepsy, where electrode arrays are used to "map" seizures and allow for the removal of the area of the brain where seizures begin. However, the electrode arrays currently used are not flexible and do not adjust to the folds of the brain, meaning they provide minimal coverage.
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