Transcranial direct-current stimulation (tDCS)—a non-invasive technique for applying electric current to areas of the brain—may be growing in popularity, but new research suggests that it probably does not add any meaningful benefit to cognitive training. The study is published in Psychological Science, a journal of the Association for Psychological Science.
“Our findings suggest that applying tDCS while older participants engaged in daily working memory training over four weeks did not result in improved cognitive ability,” explains researcher Martin Lövdén of Karolinska Institutet and Stockholm University.