Transcranial direct current stimulation versus intermittent theta-burst stimulation for the improvement of working memory performance

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Razza, Lais B. ; Luethi, Matthias S. ; Zanao, Tamires ; De Smet, Stefanie ; Buchpiguel, Carlos ; Busatto, Geraldo ; Pereira, Juliana ; Klein, Izio ; Kappen, Mitchel ; Moreno, Marina ; Baeken, Chris ; Vanderhasselt, Marie-Anne ; Brunoni, Andre R.

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF CLINICAL AND HEALTH PSYCHOLOGY; v. 23, n. 1, p. 8-pg., 2022-09-12.

Resumo

Non-invasive brain stimulation (NIBS) techniques have been increasingly used over the dorsolateral prefrontal cortex (DLPFC) to enhance working memory (WM) performance. Not-withstanding, NIBS protocols have shown either small or inconclusive cognitive effects on healthy and neuropsychiatric samples. Therefore, we assessed working memory performance and safety of transcranial direct current stimulation (tDCS), intermittent theta-burst stimulation (iTBS), and both therapies combined vs placebo over the neuronavigated left DLPFC of healthy participants. Twenty-four subjects were included to randomly undergo four sessions of NIBS, once a week: tDCS alone, iTBS alone, combined protocol and placebo. The 2-back task and an adverse effect scale were applied after each NIBS session. Results revealed a significantly faster response for iTBS (b=-21.49, p= 0.04), but not for tDCS and for the interaction tDCS vs. iTBS (b= 13.67, p= 0.26 and b= 40.5, p= 0.20, respectively). No changes were observed for accuracy and no serious adverse effects were found among protocols. Although tolerable, an absence of syner-gistic effects for the combined protocol was seen. Nonetheless, future trials accessing different outcomes for the combined protocols, as well as studies investigating iTBS over the left DLPFC for cognition and exploring sources of variability for tDCS are encouraged. (c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). (AU)

• Processo FAPESP: 18/10861-7 - Avaliação multimodal dos efeitos da estimulação transcraniana por corrente contínua e estimulação theta-burst no funcionamento do córtex pré-frontal: um estudo Fase-I bilateral, placebo-controlado, fatorial
• Beneficiário: Andre Russowsky Brunoni
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/07256-7 - Alterações na perfusão cerebral induzidas por estimulação transcraniana do córtex pré-frontal: um estudo randomizado, placebo-controlado utilizando 99mTc SPECT
• Beneficiário: Lais Boralli Razza
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 19/06009-6 - Terapias de neuromodulação não-implantáveis: uma perspectiva para o cérebro deprimido
• Beneficiário: Geraldo Busatto Filho
• Modalidade de apoio: Auxílio à Pesquisa - Temático