Evidence map›Paper›PMID 27090501›Full record

ArticleScientific reports2016

Increased frequency of social interaction is associated with enjoyment enhancement and reward system activation.

Hiroaki Kawamichi, Sho K Sugawara, Yuki H Hamano, Kai Makita, Takanori Kochiyama, Norihiro Sadato

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

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

  1. Pooled it
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  17. Are people with social anxiety disorder happier alone?Journal of anxiety disorders · 2021
    Article
  18. Loneliness and the Social Brain: How Perceived Social Isolation Impairs Human Interactions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Article
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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

6 authors.

Hiroaki KawamichiGraduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, 116-8551 Japan.
Sho K SugawaraDivision of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences, Okazaki, 444-8585 Japan.
Yuki H HamanoDivision of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences, Okazaki, 444-8585 Japan.
Kai MakitaDivision of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences, Okazaki, 444-8585 Japan.
Takanori KochiyamaATR Brain Activity Imaging Center, Sagara-gun, 619-0288, Japan.
Norihiro SadatoDivision of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences, Okazaki, 444-8585 Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Positive social interactions contribute to the sense that one's life has meaning. Enjoyment of feelings associated through social interaction motivates humans to build social connections according to their personal preferences. Therefore, we hypothesized that social interaction itself activates the reward system in a manner that depends upon individual interaction preferences. To test this hypothesis, we conducted a functional magnetic resonance imaging (fMRI) study in which 38 participants played a virtual ball-toss game in which the number of ball tosses to the participant was either similar to (normal-frequency condition) or higher than (high-frequency condition) the number of tosses to the other players. Participants reported greater-than-anticipated enjoyment during the high-frequency condition, suggesting that receiving a social reward led to unexpected positive feelings. Consistent with this, the high-frequency condition produced stronger activation in the ventral striatum, which is part of the reward system, and the precuneus, representing positive self-image, which might be translated to social reward. Furthermore, ventral striatal activation covaried with individual participants' preference for interactions with others. These findings suggest that an elevated frequency of social interaction is represented as a social reward, which might motivate individuals to promote social interaction in a manner that is modulated by personal preference.

Indexed as

HappinessInterpersonal RelationsMagnetic Resonance ImagingAdultBrain MappingEmotionsFemaleHumansImage Processing, Computer-AssistedMaleMotivationRewardVentral StriatumYoung Adult

Identifiers

PMID27090501
PMCPMC4835785

What OpenQuestion holds

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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.