Cited by 208Functional Brain Connectivity StudiesTreatment of Major DepressionSuicide and Self-Harm Studies

More than just statics: temporal dynamics of intrinsic brain activity predicts the suicidal ideation in depressed patients

Li, Jiao, Duan, Xujun, Cui, Qian, Chen, Huafu, Liao, Wei·2019·Psychological Medicine

Abstract

Background: Major depressive disorder (MDD) is associated with high risk of suicide. Conventional neuroimaging works showed abnormalities of static brain activity and connectivity in MDD with suicidal ideation (SI). However, little is known regarding alterations of brain dynamics. More broadly, it remains unclear whether temporal dynamics of the brain activity could predict the prognosis of SI. Methods: We included MDD patients (n = 48) with and without SI and age-, gender-, and education-matched healthy controls (n = 30) who underwent resting-state functional magnetic resonance imaging. We first assessed dynamic amplitude of low-frequency fluctuation (dALFF) – a proxy for intrinsic brain activity (iBA) – using sliding-window analysis. Furthermore, the temporal variability (dynamics) of iBA was quantified as the variance of dALFF over time. In addition, the prediction of the severity of SI from temporal variability was conducted using a general linear model. Results: Compared with MDD without SI, the SI group showed decreased brain dynamics (less temporal variability) in the dorsal anterior cingulate cortex, the left orbital frontal cortex, the left inferior temporal gyrus, and the left hippocampus. Importantly, these temporal variabilities could be used to predict the severity of SI (r = 0.43, p = 0.03), whereas static ALFF could not in the current data set. Conclusions: These findings suggest that alterations of temporal variability in regions involved in executive and emotional processing are associated with SI in MDD patients. This novel predictive model using the dynamics of iBA could be useful in developing neuromarkers for clinical applications.

Integrity signals

Registry

Crossref · 10.1017/s0033291718001502

Cites

79 of 79 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Other studies have reported lower rs-fMRI activity and functional connectivity, probably due to different outcome measures and heterogeneity of suicidal ideation.

    “However, other studies have reported lower rs-fMRI activity and functional connectivity (85, 86, 92, 93), probably due to use of different outcome measures of rs-fMRI activity, for example, regional homogeneity, fractional amplitude of low-frequency fluctuations among studies, and heterogeneity of suicidal ideation.”

    From A brain-centric model of suicidal behavior (2020) · cites this paper as [93]

Cites

Flagged first, then by citations

1 of the 80 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Li, J., Duan, X., Cui, Q., Chen, H., & Liao, W.
Affiliations
University of Electronic Science and Technology of China (CN)
Corresponding author
Liao, Wei
Venue
Psychological Medicine
Published
2018-06-18
Volume
49
Issue
5
Pages
852-860
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W2809054788
Cited by
208
References
80
Citations by year
2026: 14 · 2025: 26 · 2024: 17 · 2023: 30 · 2022: 31 · 2021: 36 · 2020: 37 · 2019: 15 · 2018: 2
FWCI
13.40
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Higher Education Discipline Innovation Project
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
Keywords
suicidal ideation, major depressive disorder, intrinsic brain activity, dynamic amplitude of low-frequency fluctuation, temporal dynamics of brain activity, resting-state functional connectivity, dorsal anterior cingulate cortex, orbitofrontal cortex, hippocampus, inferior temporal gyrus, neuromarkers, suicide risk prediction
MeSH terms
Adult, Brain Mapping, Cerebral Cortex, Major Depressive Disorder, Depressive Disorder, Major, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Linear Models, Young Adult, Suicidal Ideation

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review