Recharging cognition with DC brain polarization

Eric M. Wassermann*, Jordan Grafman

*Corresponding author for this work

Research output: Contribution to journalShort surveypeer-review

118 Scopus citations


Electrical direct current (DC) has been applied to the human head throughout history for various reasons and with claims of behavioral effects and clinical benefits. This technique has recently been rediscovered and its effects validated with modern quantitative techniques and experimental designs. Despite the very weak current used, DC polarization applied to specific brain areas can alter verbal fluency, motor learning and perceptual thresholds, and can be used in conjunction with transcranial magnetic stimulation. Compact and safe, this old technique seems poised to allow major advances cognitive science and therapy.

Original languageEnglish (US)
Pages (from-to)503-505
Number of pages3
JournalTrends in Cognitive Sciences
Issue number11
StatePublished - Nov 2005

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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