Attention neuroenhancement through tDCS or neurofeedback: a randomized, single-blind, controlled trial

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dc.contributor.authorRego G.G.
dc.contributor.authorGoncalves O.F.
dc.contributor.authorBoggio P.S.
dc.date.accessioned2024-03-12T19:13:06Z
dc.date.available2024-03-12T19:13:06Z
dc.date.issued2022
dc.description.abstract© 2022, The Author(s).Neurofeedback and transcranial Direct Current Stimulation (tDCS) are promising techniques for neuroenhancement of attentional performance. As far as we know no study compared both techniques on attentional performance in healthy participants. We compared tDCS and neurofeedback in a randomized, single-blind, controlled experiment assessing both behavioral (accuracy and time reaction) and electrophysiological (N1, P1, and P3 components) data of participants responding to the Attention Network Task (ANT). Eighty volunteers volunteered for this study. We adopted standard protocols for both techniques, i.e., a Sensorimotor Rhythm (SMR) protocol for neurofeedback and the right DLPFC anodal stimulation for tDCS, applied over nine sessions (two weeks). We did not find significant differences between treatment groups on ANT, neither at the behavioral nor at the electrophysiological levels. However, we found that participants from both neuromodulation groups, irrespective of if active or sham, reported attentional improvements in response to the treatment on a subjective scale. Our study adds another null result to the neuromodulation literature, showing that neurofeedback and tDCS effects are more complex than previously suggested and associated with placebo effect. More studies in neuroenhancement literature are necessary to fully comprehend neuromodulation mechanisms.
dc.description.issuenumber1
dc.description.volume12
dc.identifier.doi10.1038/s41598-022-22245-6
dc.identifier.issn2045-2322
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34266
dc.relation.ispartofScientific Reports
dc.rightsAcesso Aberto
dc.titleAttention neuroenhancement through tDCS or neurofeedback: a randomized, single-blind, controlled trial
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-85140260651
local.scopus.subjectHealthy Volunteers
local.scopus.subjectHumans
local.scopus.subjectNeurofeedback
local.scopus.subjectReaction Time
local.scopus.subjectSingle-Blind Method
local.scopus.subjectTranscranial Direct Current Stimulation
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85140260651&origin=inward
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