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Imperceptibly weak electrical currents in the alpha (10 Hz), beta (20 Hz), theta (5 Hz), and gamma (40 Hz) range, as well as a sham stimulation, were delivered over the left posterior parietal cortex, a cortical region thought to sustain maintenance processes in short-term memory through oscillatory brain activity in the beta range. We showed a frequency-specific effect of beta-tACS that robustly increased the forward memory span of young, but not middle-aged, healthy individuals. The effect correlated with age: the younger the subjects, the greater the benefit arising from parietal beta stimulation. Our results provide evidence of a short-term memory capacity improvement in young adults by online frequency-specific tACS application. <\/jats:p>","DOI":"10.1152\/jn.01080.2015","type":"journal-article","created":{"date-parts":[[2016,5,3]],"date-time":"2016-05-03T17:30:45Z","timestamp":1462296645000},"page":"153-158","source":"Crossref","is-referenced-by-count":32,"title":["Frequency-specific insight into short-term memory capacity"],"prefix":"10.1152","volume":"116","author":[{"given":"Matteo","family":"Feurra","sequence":"first","affiliation":[{"name":"Department of Medicine, Surgery and Neuroscience, Unit of Neurology and Clinical Neurophysiology, Brain Investigation and Neuromodulation Laboratory (Si-BIN Lab), Azienda Ospedaliera Universitaria of Siena, Policlinico Le Scotte, Siena, Italy;"},{"name":"School of Psychology, Centre for Cognition and Decision Making, National Research University Higher School of Economics, Russian Federation, Moscow, 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