Effects of Transcranial Direct Current Stimulation on effort during a working-memory task

Abstract Transcranial Direct Current Stimulation (tDCS) has shown that stimulation of Dorsolateral Prefrontal Cortex (DLPFC) facilitates task performance in working-memory tasks. However, little is known about its potential effects on effort. This study examined whether tDCS affects effort during a...

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Autores principales:	David Framorando, Tianlan Cai, Yi Wang, Alan J. Pegna
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5a40ace8bb1c43b18de78e3264477347
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spelling	oai:doaj.org-article:5a40ace8bb1c43b18de78e32644773472021-12-02T15:08:11ZEffects of Transcranial Direct Current Stimulation on effort during a working-memory task10.1038/s41598-021-95639-72045-2322https://doaj.org/article/5a40ace8bb1c43b18de78e32644773472021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95639-7https://doaj.org/toc/2045-2322Abstract Transcranial Direct Current Stimulation (tDCS) has shown that stimulation of Dorsolateral Prefrontal Cortex (DLPFC) facilitates task performance in working-memory tasks. However, little is known about its potential effects on effort. This study examined whether tDCS affects effort during a working-memory task. Participants received anodal, cathodal and sham stimulation over DLPFC across three sessions before carrying out a 2-back task. During the task, effort-related cardiovascular measures were recorded—especially the Initial Systolic Time Interval (ISTI). Results showed that anodal stimulation produced a shorter ISTI, indicating a greater effort compared to cathodal and sham conditions, where effort was lower. These findings demonstrate that anodal stimulation helps participants to maintain engagement in a highly demanding task (by increasing task mastery), without which they would otherwise disengage. This study is the first to show that tDCS impacts the extent of effort engaged by individuals during a difficult task.David FramorandoTianlan CaiYi WangAlan J. PegnaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David Framorando Tianlan Cai Yi Wang Alan J. Pegna Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
description	Abstract Transcranial Direct Current Stimulation (tDCS) has shown that stimulation of Dorsolateral Prefrontal Cortex (DLPFC) facilitates task performance in working-memory tasks. However, little is known about its potential effects on effort. This study examined whether tDCS affects effort during a working-memory task. Participants received anodal, cathodal and sham stimulation over DLPFC across three sessions before carrying out a 2-back task. During the task, effort-related cardiovascular measures were recorded—especially the Initial Systolic Time Interval (ISTI). Results showed that anodal stimulation produced a shorter ISTI, indicating a greater effort compared to cathodal and sham conditions, where effort was lower. These findings demonstrate that anodal stimulation helps participants to maintain engagement in a highly demanding task (by increasing task mastery), without which they would otherwise disengage. This study is the first to show that tDCS impacts the extent of effort engaged by individuals during a difficult task.
format	article
author	David Framorando Tianlan Cai Yi Wang Alan J. Pegna
author_facet	David Framorando Tianlan Cai Yi Wang Alan J. Pegna
author_sort	David Framorando
title	Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
title_short	Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
title_full	Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
title_fullStr	Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
title_full_unstemmed	Effects of Transcranial Direct Current Stimulation on effort during a working-memory task
title_sort	effects of transcranial direct current stimulation on effort during a working-memory task
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5a40ace8bb1c43b18de78e3264477347
work_keys_str_mv	AT davidframorando effectsoftranscranialdirectcurrentstimulationoneffortduringaworkingmemorytask AT tianlancai effectsoftranscranialdirectcurrentstimulationoneffortduringaworkingmemorytask AT yiwang effectsoftranscranialdirectcurrentstimulationoneffortduringaworkingmemorytask AT alanjpegna effectsoftranscranialdirectcurrentstimulationoneffortduringaworkingmemorytask
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Effects of Transcranial Direct Current Stimulation on effort during a working-memory task

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