Evidence map›Paper›PMID 39994039›Full record

ArticleJournal of gastroenterology2025

Brain activity during a public-speaking situation in virtual reality in patients with irritable bowel syndrome and functional dyspepsia.

Ryo Katsumata, Takayuki Hosokawa, Noriaki Manabe, Hitoshi Mori, Kenta Wani, Minako Kimura, Shintaro Oda, Katsunori Ishii, Tomohiro Tanikawa, Noriyo Urata and 10 more

Abstract read
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In one paragraph

Article in Journal of gastroenterology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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

20 authors.

Ryo Katsumata *Department of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1 Nakasange Kita-ku, Okayama City, Okayama, Japan. katsumata@med.kawasaki-m.ac.jp.ORCID 0000-0002-9602-3391
Takayuki Hosokawa *Department of Orthoptics, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Kurashiki, Japan.
Noriaki ManabeDepartment of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan.
Hitoshi MoriDepartment of Neurology, Kawasaki Medical School General Medical Center, Okayama, Japan.
Kenta WaniDepartment of Psychiatry, Kawasaki Medical School General Medical Center, Okayama, Japan.
Minako KimuraDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Shintaro OdaDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Katsunori IshiiDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Tomohiro TanikawaDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Noriyo UrataDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Maki AyakiDepartment of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan.
Ken NishinoDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Takahisa MuraoDepartment of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1 Nakasange Kita-ku, Okayama City, Okayama, Japan.
Mitsuhiko SuehiroDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Minoru FujitaDepartment of Clinical Pathology and Laboratory Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan.
Miwa KawanakaDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Ken HarumaDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Hirofumi KawamotoDepartment of General Internal Medicine 2, Kawasaki Medical School General Medical Center, Okayama, Japan.
Toshihiro TakaoDepartment of Health Care Medicine, Kawasaki Medical School, Kurashiki, Japan.
Tomoari KamadaDepartment of Health Care Medicine, Kawasaki Medical School General Medical Center, 2-6-1 Nakasange Kita-ku, Okayama City, Okayama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPsychosocial stress plays a central role in the pathophysiology of disorders of gut-brain interactions (DGBI), including functional dyspepsia (FD) and irritable bowel syndrome (IBS). Brain activity during psychosocial stress in patients with DGBI has not been adequately investigated. In this prospective study, we aimed to explore brain activity during psychosocial stress in patients with DGBI.

methodsSituations in an unmanned room, public space without attention, and public speaking were simulated in a virtual reality (VR) environment. Subjective stress, emotional state, and gastrointestinal (GI) symptoms were assessed using a visual analog scale, the State-Trait Anxiety Inventory, and the GI Symptom Rating Scale, respectively. Electrocardiograms were recorded to evaluate autonomic function. Activity in the prefrontal cortex (PFC) was examined using functional near-infrared spectroscopy (fNIRS).

resultsOverall, 15 healthy controls, 15 patients with IBS, and 15 patients with FD were included. In the public-speaking scenario, subjective stress scores significantly decreased (indicating more stress) and sympathetic nervous activity increased equally among the three groups compared with those in an unmanned scene. Patients with IBS had higher activity in the left ventrolateral prefrontal cortex (VLPFC) and lower activity in the dorsolateral PFC (DLPFC) than those with FD and healthy controls.

conclusionsBrain activity increased in the VLPFC and decreased in the DLPFC under stressful psychosocial situations created in the VR space in patients with IBS. Thus, the combination of VR and fNIRS is a viable option for evaluating brain activity under psychosocial stress in natural clinical settings.

Indexed as

BrainDyspepsiaIrritable Bowel SyndromeStress, PsychologicalVirtual RealityAdultCase-Control StudiesFemaleHumansMaleMiddle AgedPrefrontal CortexProspective StudiesSpectroscopy, Near-InfraredSpeechYoung AdultIrritable bowel syndromeNear-infrared spectroscopyPsychological stressPublic speakingVirtual reality

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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.