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Publication Detail
Short duration transcranial direct current stimulation (tDCS) modulates verbal memory.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Javadi AH, Cheng P, Walsh V
  • Publication date:
    10/2012
  • Pagination:
    468, 474
  • Journal:
    Brain Stimul
  • Volume:
    5
  • Issue:
    4
  • Status:
    Published
  • Country:
    United States
  • PII:
    S1935-861X(11)00117-3
  • Language:
    eng
  • Keywords:
    Adolescent, Adult, Electric Stimulation, Female, Humans, Male, Memory, Neuropsychological Tests, Prefrontal Cortex, Reaction Time, Recognition, Psychology, Speech
Abstract
Transcranial direct current stimulation (tDCS) is a noninvasive method of modulating cortical excitability. The aim of this study was to investigate the effects of short-duration tDCS (1.6 seconds per trial) on memory performance, and whether the effects were affected by stimulation administered early or late in a trial. Participants memorize words under anodal and cathodal tDCS to the left dorsolateral prefrontal cortex (DLPFC) in two separate sessions in no-stimulation, early stimulation, and late stimulation trials. Early stimulation occurred during word presentation, whereas late stimulation occurred after word presentation. Early anodal tDCS led to significantly better accuracy and speed in a subsequent recognition test compared to anodal late or no-stimulation conditions. Early cathodal tDCS, on the other hand, led to significantly worse accuracy and speed in a subsequent recognition test compared with cathodal late or no-stimulation conditions. The results of this study suggest that short-duration tDCS can modulate memory performance and highlight the importance of period of stimulation.
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