Treatment with transcranial alternating current stimulation, a noninvasive method that alters brain activity using electric currents, led to improved cognitive function in areas including working and long-term memory, attention, and executive control, according to a meta-analysis of 102 studies that enrolled a total of 2893 participants. The findings applied to healthy people as well as older adults and people with neuropsychiatric disorders such as depression, Parkinson disease, and mild cognitive impairment.
Source: JAMA Online First