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Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex
Creativity has previously been shown to improve after the application of direct and alternating current transcranial stimulation over the dorsolateral prefrontal cortex (DLPFC). However, previous studies have not tested whether transcranial random noise stimulation (tRNS) was efficient for this purp...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6506544/ https://www.ncbi.nlm.nih.gov/pubmed/31068654 http://dx.doi.org/10.1038/s41598-019-43626-4 |
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author | Peña, Javier Sampedro, Agurne Ibarretxe-Bilbao, Naroa Zubiaurre-Elorza, Leire Ojeda, Natalia |
author_facet | Peña, Javier Sampedro, Agurne Ibarretxe-Bilbao, Naroa Zubiaurre-Elorza, Leire Ojeda, Natalia |
author_sort | Peña, Javier |
collection | PubMed |
description | Creativity has previously been shown to improve after the application of direct and alternating current transcranial stimulation over the dorsolateral prefrontal cortex (DLPFC). However, previous studies have not tested whether transcranial random noise stimulation (tRNS) was efficient for this purpose. The aim of this randomized, double-blind, placebo-controlled study was to investigate the effect of tRNS on both verbal convergent and (verbal and visual) divergent thinking during left DLPFC tRNS stimulation. Thirty healthy participants were randomly allocated to either a tRNS active group or a sham group. Each session lasted 20 min and the current was set to 1.5 mA (100–500 Hz). Participants’ verbal convergent thinking was assessed with the Remote Associates Test (RAT). Verbal and visual divergent thinking were respectively measured by using the Unusual Uses and Picture Completion subtests from the Torrance Tests of Creative Thinking. Bootstrapped analysis of variance showed significant differences in the mean change scores between the active tRNS group and the sham group in RAT scores (d = 1.68); unusual uses: fluency (d = 2.29) and originality (d = 1.43); and general creativity (d = 1.45). Visual divergent thinking, in contrast, did not show any significant improvement. Our results suggested that tRNS over the left DLPFC is effective for increasing verbal divergent and convergent thinking. |
format | Online Article Text |
id | pubmed-6506544 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-65065442019-05-21 Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex Peña, Javier Sampedro, Agurne Ibarretxe-Bilbao, Naroa Zubiaurre-Elorza, Leire Ojeda, Natalia Sci Rep Article Creativity has previously been shown to improve after the application of direct and alternating current transcranial stimulation over the dorsolateral prefrontal cortex (DLPFC). However, previous studies have not tested whether transcranial random noise stimulation (tRNS) was efficient for this purpose. The aim of this randomized, double-blind, placebo-controlled study was to investigate the effect of tRNS on both verbal convergent and (verbal and visual) divergent thinking during left DLPFC tRNS stimulation. Thirty healthy participants were randomly allocated to either a tRNS active group or a sham group. Each session lasted 20 min and the current was set to 1.5 mA (100–500 Hz). Participants’ verbal convergent thinking was assessed with the Remote Associates Test (RAT). Verbal and visual divergent thinking were respectively measured by using the Unusual Uses and Picture Completion subtests from the Torrance Tests of Creative Thinking. Bootstrapped analysis of variance showed significant differences in the mean change scores between the active tRNS group and the sham group in RAT scores (d = 1.68); unusual uses: fluency (d = 2.29) and originality (d = 1.43); and general creativity (d = 1.45). Visual divergent thinking, in contrast, did not show any significant improvement. Our results suggested that tRNS over the left DLPFC is effective for increasing verbal divergent and convergent thinking. Nature Publishing Group UK 2019-05-08 /pmc/articles/PMC6506544/ /pubmed/31068654 http://dx.doi.org/10.1038/s41598-019-43626-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Peña, Javier Sampedro, Agurne Ibarretxe-Bilbao, Naroa Zubiaurre-Elorza, Leire Ojeda, Natalia Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title | Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title_full | Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title_fullStr | Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title_full_unstemmed | Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title_short | Improvement in creativity after transcranial random noise stimulation (tRNS) over the left dorsolateral prefrontal cortex |
title_sort | improvement in creativity after transcranial random noise stimulation (trns) over the left dorsolateral prefrontal cortex |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6506544/ https://www.ncbi.nlm.nih.gov/pubmed/31068654 http://dx.doi.org/10.1038/s41598-019-43626-4 |
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