Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216]
Evidence suggests that excitatory transcranial direct current stimulation (tDCS) may improve performance on a wide variety of cognitive tasks. Due to the non-invasive and inexpensive nature of the method, harnessing its potential could be particularly useful for the treatment of neuropsychiatric ill...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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F1000 Research Ltd
2013-10-01
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| Series: | F1000Research |
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| Online Access: | http://f1000research.com/articles/2-219/v1 |
| _version_ | 1819006247479803904 |
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| author | Níall Lally Camilla L. Nord Vincent Walsh Jonathan P. Roiser |
| author_facet | Níall Lally Camilla L. Nord Vincent Walsh Jonathan P. Roiser |
| author_sort | Níall Lally |
| collection | DOAJ |
| description | Evidence suggests that excitatory transcranial direct current stimulation (tDCS) may improve performance on a wide variety of cognitive tasks. Due to the non-invasive and inexpensive nature of the method, harnessing its potential could be particularly useful for the treatment of neuropsychiatric illnesses involving cognitive dysfunction. However, questions remain regarding the efficacious stimulation parameters. Here, using a double-blind between-subjects design, we explored whether 1 mA excitatory (anodal) left dorsolateral prefrontal cortex stimulation with a contralateral extracephalic reference electrode, leads to enhanced working memory performance across two days, relative to sham stimulation. Participants performed the 3-back, a test of working memory, at baseline, and during and immediately following stimulation on two days, separated by 24-48 hours. Active stimulation did not significantly enhance performance versus sham over the course of the experiment. However, exploratory comparisons did reveal a significant effect of stimulation group on performance during the first stimulation phase only, with active stimulation recipients performing better than sham. While these results do not support the hypothesis that dorsolateral prefrontal cortex tDCS boosts working memory, they raise the possibility that its effects may be greatest during early learning stages. |
| first_indexed | 2024-12-21T00:05:39Z |
| format | Article |
| id | doaj.art-2c7fe963b9d147b1af62ea669dc16b32 |
| institution | Directory Open Access Journal |
| issn | 2046-1402 |
| language | English |
| last_indexed | 2024-12-21T00:05:39Z |
| publishDate | 2013-10-01 |
| publisher | F1000 Research Ltd |
| record_format | Article |
| series | F1000Research |
| spelling | doaj.art-2c7fe963b9d147b1af62ea669dc16b322022-12-21T19:22:28ZengF1000 Research LtdF1000Research2046-14022013-10-01210.12688/f1000research.2-219.v12634Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216]Níall Lally0Camilla L. Nord1Vincent Walsh2Jonathan P. Roiser3Institute of Cognitive Neuroscience, University College London, London, WC1N 3AR, UKInstitute of Cognitive Neuroscience, University College London, London, WC1N 3AR, UKInstitute of Cognitive Neuroscience, University College London, London, WC1N 3AR, UKInstitute of Cognitive Neuroscience, University College London, London, WC1N 3AR, UKEvidence suggests that excitatory transcranial direct current stimulation (tDCS) may improve performance on a wide variety of cognitive tasks. Due to the non-invasive and inexpensive nature of the method, harnessing its potential could be particularly useful for the treatment of neuropsychiatric illnesses involving cognitive dysfunction. However, questions remain regarding the efficacious stimulation parameters. Here, using a double-blind between-subjects design, we explored whether 1 mA excitatory (anodal) left dorsolateral prefrontal cortex stimulation with a contralateral extracephalic reference electrode, leads to enhanced working memory performance across two days, relative to sham stimulation. Participants performed the 3-back, a test of working memory, at baseline, and during and immediately following stimulation on two days, separated by 24-48 hours. Active stimulation did not significantly enhance performance versus sham over the course of the experiment. However, exploratory comparisons did reveal a significant effect of stimulation group on performance during the first stimulation phase only, with active stimulation recipients performing better than sham. While these results do not support the hypothesis that dorsolateral prefrontal cortex tDCS boosts working memory, they raise the possibility that its effects may be greatest during early learning stages.http://f1000research.com/articles/2-219/v1Cognitive Neuroscience |
| spellingShingle | Níall Lally Camilla L. Nord Vincent Walsh Jonathan P. Roiser Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] F1000Research Cognitive Neuroscience |
| title | Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] |
| title_full | Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] |
| title_fullStr | Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] |
| title_full_unstemmed | Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] |
| title_short | Does excitatory fronto-extracephalic tDCS lead to improved working memory performance? [v1; ref status: indexed, http://f1000r.es/216] |
| title_sort | does excitatory fronto extracephalic tdcs lead to improved working memory performance v1 ref status indexed http f1000r es 216 |
| topic | Cognitive Neuroscience |
| url | http://f1000research.com/articles/2-219/v1 |
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