Evidence map›Paper›PMID 31885536›Full record

ArticleNeural plasticity2019

Amygdala Changes in Chronic Insomnia and Their Association with Sleep and Anxiety Symptoms: Insight from Shape Analysis.

Liang Gong, Tianzhi Liao, Duan Liu, Qiuhua Luo, Ronghua Xu, Qun Huang, Bei Zhang, Fen Feng, Chuantao Zhang

Open access · goldAbstract read
In one paragraph

Article in Neural plasticity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
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  5. Pharmaceutical biology · 2026
    Review
  6. Article
  7. Role of the Amygdala in the Complex Relationship Between Sleep and Anxiety.International journal of molecular sciences · 2026
    Review
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  16. Observational
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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 1 institution in 1 country.

Liang GongDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Tianzhi LiaoDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Duan LiuDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Qiuhua LuoDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Ronghua XuDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Qun HuangHospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China.
Bei ZhangDepartment of Neurology, Chengdu Second People's Hospital, Chengdu, Sichuan 610017, China.
Fen FengHospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China.
Chuantao ZhangDepartment of Respiratory Medicine, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China.ORCID 0000-0003-1212-971X
Chengdu Second People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Affective disorders, such as anxiety and depression, are common comorbidities associated with chronic insomnia disorder (CID). However, the underlying neural mechanisms of these comorbidities are still not clear. The present study is aimed at investigating structural changes in the amygdala of CID patients using surface-based shape analysis. A total of 65 medication-naive patients with CID and 55 healthy controls (HCs) matched for age, sex, and years of education were enrolled in this study and were subjected to structural magnetic resonance imaging (MRI). The Oxford Centre for Functional MRI of the Brain (FMRIB) created an Integrated Registration and Segmentation Tool (FIRST) that was employed in this study to assess the volumetric and surface alterations in patients with CID. Shape correlations between the amygdala and clinical features were also analyzed. Atrophic changes in the amygdala were observed at the local level, not for the entire amygdala volume. The left atrophic changes in the amygdala were in the superficial and basolateral nuclei while right atrophic changes were in the basolateral nuclei in CID patients. Insomnia severity was associated with the centromedial right amygdala while anxiety was linked with the basolateral nuclei. These findings indicate localized amygdala atrophy in CID. Separate amygdala regions are associated with insomnia and anxiety in CID. This evidence helps elucidate the neural mechanisms underlying the bidirectional relationship between insomnia and anxiety.

Indexed as

AdultAmygdalaAnxietyCross-Sectional StudiesFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedSleep Initiation and Maintenance Disorders

Identifiers

PMID31885536
PMCPMC6914992
OpenAlexW2989732577

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.