Evidence map›Paper›PMID 33739605›Full record

ArticleCNS neuroscience & therapeutics2021

The effect of somatosensory alpha transcranial alternating current stimulation on pain empathy is trait empathy and gender dependent.

Peipei Wang, Minjia Zhu, Shaohua Mo, Xiaoli Li, Jing Wang

Abstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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

  1. Pooled it
  2. A transdisciplinary framework for empathy research.Frontiers in human neuroscience · 2026
    Article
  3. Article
  4. Article
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

5 authors.

Peipei WangDepartment of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.
Minjia ZhuDepartment of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China.
Shaohua MoDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Xiaoli LiState Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.ORCID 0000-0003-1359-5130
Jing WangDepartment of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.ORCID 0000-0001-7463-6894

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPain empathy enables a person to experience and understand other's pain state by observing others in pain condition. Such prosocial ability is deficient in many psychopathological disorders. Somatosensory alpha suppression is considered as neural correlates of pain empathy and is hypothesized as a target for enhancement of pain empathy. Researches demonstrated that alpha suppression could be enhanced by transcranial alternating current stimulation (tACS) at alpha frequency non-invasively.

aimsWe applied alpha tACS over the primary somatosensory cortex of healthy subjects to investigate whether alpha tACS is able to enhance the pain empathy performance.

resultsThe results showed that there was no difference of pain empathy performance between alpha tACS and sham tACS either when tACS was applied during the task or before task. While in the alpha tACS group, the pain empathy performance was positively correlated with empathic concern of male subjects, the sub-component of personal trait empathy.

conclusionsAlpha tACS cannot alter the empathy performance overall, but the modulation effect of alpha tACS on pain empathy is dependent on the gender and trait empathy of subjects.

Indexed as

Alpha RhythmTranscranial Direct Current StimulationAdolescentAdultElectroencephalographyEmpathyEvoked Potentials, SomatosensoryFemaleHumansMaleNeuropsychological TestsPainSex CharacteristicsSomatosensory CortexYoung AdultAlpha ERDempathy concernpain empathytranscranial alternating current stimulation

Identifiers

PMID33739605
PMCPMC8111491

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LicenceCC BY
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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.