After a single session of transcranial electrical stimulation (tES), researchers noted a significant reduction in blood flow to brain tumors. However, there were no alterations in blood flow or activity in the rest of the brain. The technique may be helpful in the treatment of brain cancers such as glioblastoma.
Neuroimaging study reveals veterans who suffered a mild traumatic brain injury (mTBI) have higher levels of fast, high-frequency gamma waves in the prefrontal and posterior parietal lobes, areas of the brain associated with consciousness, attention and problem-solving.
Researchers debate the growing use of tES to enhance creativity, concluding there is a potential value in brain stimulation. However, researchers say, the use of tES raises a number of neuroethical, legal and social issues that must be addressed.