Evidence map›Paper›PMID 34964895›Full record

ArticleSocial cognitive and affective neuroscience2022

Inter-brain synchronization is weakened by the introduction of external punishment.

Jianbiao Li, Jingjing Pan, Chengkang Zhu, Yiwen Wang

Erratum issuedAbstract read
In one paragraph

Article in Social cognitive and affective neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Jianbiao LiSchool of Economics, Institute for Study of Brain-Like Economics, Shandong University, Jinan 251000, China.
Jingjing PanChina Academy of Corporate Governance, Reinhard Selten Laboratory, Nankai University, Tianjin 300071, China.
Chengkang ZhuSchool of Economics, Institute for Study of Brain-Like Economics, Shandong University, Jinan 251000, China.ORCID 0000-0001-5909-5241
Yiwen WangSchool of Economics and Management, Fuzhou University, Fuzhou 350108, China.ORCID 0000-0002-6879-8974

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Punishment is a popular institution to enforce social norms in human society. However, how the punishment institution impacts the inter-brain neural signatures of two-person social interactions is still an open question. By performing electroencephalography recording of brain activity in two interacting parties as they simultaneously played both the revised repeated ultimatum game (rrUG) and the revised repeated dictator game (rrDG), this study focused on exploring how the introduction of external punishment influences inter-brain synchronization between the two parties. The data showed a significant negative effect of external punishment on inter-brain synchronization, with greater inter-brain synchronization observed in the rrDG than in the rrUG. We proposed a possible mechanism underlying this result. In the rrDG, the similar moral motivation of both proposers and responders results in inter-brain synchronization between them. However, in the rrUG, the introduction of external punishment crowds out the intrinsic moral motivation of the proposers, thereby undermining the inter-brain synchronization. Moreover, we found a significant positive correlation between the rejection rate from responders for disadvantageous inequal offer and inter-brain synchronization in the rrDG. These findings contribute to understanding the negative effect of punishment institution and shed light on the inter-brain mechanism underlying social interaction.

Indexed as

ElectroencephalographyPunishmentBrainHumansMoralsMotivationEEG hyperscanninginter-brain synchronizationintroduction of external punishmentmoral motivation

Identifiers

PMID34964895
PMCPMC9327410

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LicenceCC BY-NC-ND
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Registered trials

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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.