Evidence map›Paper›PMID 30005610›Full record

ArticleBMC psychiatry2018

Correlations between exploratory eye movement, hallucination, and cortical gray matter volume in people with schizophrenia.

Linlin Qiu, Hao Yan, Risheng Zhu, Jun Yan, Huishu Yuan, Yonghua Han, Weihua Yue, Lin Tian, Dai Zhang

Open access · goldAbstract read
In one paragraph

Article in BMC psychiatry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% of its field
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  4. Distinct structural deficits in treatment-resistant schizophrenia and their putative neurotransmitter basis: a source-based morphometry analysis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
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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

9 authors at 2 institutions in 1 country.

Linlin QiuDepartment of Medical Psychology, Chaohu Hospital, Anhui Medical University, Hefei, Anhui, China.
Hao YanPeking University Sixth Hospital (Institute of Mental Health), Beijing, China.
Risheng ZhuPeking University Sixth Hospital (Institute of Mental Health), Beijing, China.
Jun YanPeking University Sixth Hospital (Institute of Mental Health), Beijing, China.
Huishu YuanThe Department of Radiology, Peking University Third Hospital, Beijing, China.
Yonghua HanPeking University Sixth Hospital (Institute of Mental Health), Beijing, China.
Weihua YuePeking University Sixth Hospital (Institute of Mental Health), Beijing, China.
Lin TianPeking University Sixth Hospital (Institute of Mental Health), Beijing, China. tianz@njmu.edu.cn.
Dai ZhangPeking University Sixth Hospital (Institute of Mental Health), Beijing, China. daizhang2018@sina.com.
Peking University · CNPeking University Sixth Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWidespread cortical gray matter alternations in people with schizophrenia are correlated with both psychotic symptoms and cognitive/behavioral abnormalities, including the impairments of exploratory eye movement (EEM). Particularly, the loss of gray matter density is specifically related to deficits of the responsive search score (RSS) of EEM in schizophrenia. It is unknown, however, whether the schizophrenia-related RSS deficits are associated with certain psychotic symptoms, such as hallucinations.

methodsIn 33 participants with schizophrenia, the measurement of EEM, assessment of the hallucination severity using Positive and Negative Syndrome Scale (PANSS) and a voxel-based morphometric analysis of cortical gray matter volume (GMV) were conducted to investigate the relationships between the RSS of EEM, symptom severity, and GMV. In 29 matched healthy controls, the measurement of EEM and a voxel-based morphometric analysis of cortical GMV were also conducted to investigate the relationship between the RSS of EEM and GMV.

resultsIn participants with schizophrenia, the hallucination severity was significantly negatively correlated with both the RSS and the GMV of a large number of brain regions in the frontal, temporal, parietal, orbitofrontal, calcarine, cingulate, and insular cortices, and rolandic operculum, hippocampus, parahippocampal gyrus, and thalamus. Also in participants with schizophrenia, the RSS was significantly positively correlated with the GMV in the left supplementary motor area (SMA), left superior frontal cortex (SFG), bilateral precentral gyri, bilateral postcentral gyri, and bilateral middle frontal cortices. More importantly, the GMV of the SMA, SFG, and precentral gyrus in the left hemisphere was not only significantly negatively correlated with the hallucination severity but also significantly positively correlated with the RSS. No significant correlation could be revealed between the RSS and the GMV of any brain regions in healthy controls.

conclusionsThere was a significantly negative association between the hallucination severity and the RSS of EEM, suggesting that the RSS may be a potential biomarker for predicting the hallucination severity of schizophrenia. Also, the GMV of the left SMA, SFG, and precentral gyrus may be the common substrates underlying both hallucination induction and the RSS in people with schizophrenia.

Indexed as

Eye MovementsGray MatterHallucinationsSchizophreniaAdultBrainCase-Control StudiesCorrelation of DataEye Movement MeasurementsFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedSchizophrenic PsychologySeverity of Illness IndexExploratory eye movementGray matter volumeHallucinationPositive and negative syndrome scaleSchizophrenia

Identifiers

PMID30005610
PMCPMC6045825
OpenAlexW2884206170

What OpenQuestion holds

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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.