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Neural Plasticity
Volume 2016 (2016), Article ID 5302538, 5 pages
Research Article

Self-Rated Attentiveness Interacts with Transcranial Direct Current Stimulation and Noise Stimulation in Reaction Time in a Go/No-Go Task

1Department of Psychology, Lund University, Paradisgatan 5, 22222 Lund, Sweden
2Department of Psychology, Øster Farimagsgade 2A, 1353 København K, Denmark

Received 21 September 2015; Revised 18 November 2015; Accepted 22 November 2015

Academic Editor: Patrice Voss

Copyright © 2016 Sverker Sikström et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Previous research has found that stimulating inattentive people with auditory white noise induces enhancement in cognitive performance. This enhancement is believed to occur due to a statistical phenomenon called stochastic resonance, where noise increases the probability of a signal passing the firing threshold in the neural cells. Here we investigate whether people with low attentiveness benefit to a larger extent than attentive people from stimulation by auditory white noise and transcranial direct current stimulation (tDCS). The results show, for both auditory noise and tDCS stimulation, that the changes in performance relative to nonstimulation correlate with the degree of attentiveness in a Go/No-Go task, but not in a N-back task. These results suggest that the benefit of tDCS may interact with inattentiveness.