Brain stimulation over dorsomedial prefrontal cortex modulates effort-based decision making.
Deciding whether to engage in strenuous mental activities requires trading-off the potential benefits against the costs of mental effort, but it is unknown which brain rhythms are causally involved in such cost-benefit calculations. We show that brain stimulation targeting midfrontal theta oscillati...
| Publicado en: | Cognitive, Affective & Behavioral Neuroscience Vol. 22; no. 6; pp. 1264 - 1275 |
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| Autores principales: | , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Dec2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=159974041&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 159974041 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15307026 NA4 jtl: Cognitive, Affective & Behavioral Neuroscience issn: 15307026 maglogo: N pubinfo: dt: Dec2022 vid: 22 iid: 6 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 159974041 157564189 10.3758/s13415-022-01021-z 159974041 ppf: 1264 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Brain stimulation over dorsomedial prefrontal cortex modulates effort-based decision making. aug: au: Soutschek, Alexander Nadporozhskaia, Lidiia Christian, Patricia affil: Department for Psychology, Ludwig Maximilian University Munich, Leopoldstr. 13, 80802, Munich, Germany sug: ab: Deciding whether to engage in strenuous mental activities requires trading-off the potential benefits against the costs of mental effort, but it is unknown which brain rhythms are causally involved in such cost-benefit calculations. We show that brain stimulation targeting midfrontal theta oscillations increases the engagement in goal-directed mental effort. Participants received transcranial alternating current stimulation over dorsomedial prefrontal cortex while deciding whether they are willing to perform a demanding working memory task for monetary rewards. Midfrontal theta tACS increased the willingness to exert mental effort for rewards while leaving working memory performance unchanged. Computational modelling using a hierarchical Bayesian drift diffusion model suggests that theta tACS shifts the starting bias before evidence accumulation towards high reward-high effort options without affecting the velocity of the evidence accumulation process. Our findings suggest that the motivation to engage in goal-directed mental effort can be increased via midfrontal tACS. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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