Evidence map›Paper›PMID 32710816›Full record

ArticleHuman brain mapping2020

Causal role of lateral prefrontal cortex in mental effort and fatigue.

Alexander Soutschek, Philippe N Tobler

Abstract read
In one paragraph

Article in Human brain mapping, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Alexander SoutschekDepartment for Psychology, Ludwig Maximilian University Munich, Munich, Germany.ORCID 0000-0001-8438-7721
Philippe N ToblerZurich Center for Neuroeconomics, Department of Economics, University of Zurich, Zurich, Switzerland.

Funding

Deutsche Forschungsgemeinschaft SO 1636/2-1Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 100014_165884Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung CRSII5_177277Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung PP00P1 150739Velux Stiftung 981
6 · The paper itself

Abstract

Dorsolateral prefrontal cortex (DLPFC) is well-known for its role in exerting mental work, however the contribution of DLPFC for deciding whether or not to engage in effort remains unknown. Here, we assessed the causal role of DLPFC in effort-based decision making. We disrupted functioning of DLPFC with noninvasive brain stimulation before participants repeatedly decided whether to exert mental effort in a working memory task. We found the same DLPFC subregion involved in mental effort exertion to influence also effort-based decisions: First, it enhanced effort discounting, suggesting that DLPFC may signal the capacity to successfully deal with effort demands. Second, a novel computational model integrating the costs of enduring effort into the effort-based decision process revealed that DLPFC disruption reduced fatigue after accumulated effort exertion, linking DLPFC activation with fatigue. Together, our findings indicate that in effort-based decisions DLPFC represents the capacity to exert mental effort and the updating of this information with enduring time-on-task, informing theoretical accounts on the role of DLPFC in the motivation to exert mental effort and the fatigue arising from it.

Indexed as

Transcranial Magnetic StimulationAdultAnhedoniaDecision MakingDorsolateral Prefrontal CortexFatigueFemaleHumansMaleMemory, Short-TermModels, TheoreticalMotivationPsychomotor PerformanceRewardYoung Adultcognitive effortdecision makingeffort discountingmotivationtheta-burst stimulation

Identifiers

PMID32710816
PMCPMC7555063

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.