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Related Experiment Video

Updated: Jun 14, 2025

Design and Implementation of an fMRI Study Examining Thought Suppression in Young Women with, and At-risk, for Depression
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Repetitive negative thinking and suicidal ideation in internalizing psychopathologies: A replication study.

Delaney Davey1, Grace Macdonald-Gagnon1, Brian W Bauer2

  • 1Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA.

Behaviour Research and Therapy
|August 30, 2024
PubMed
Summary

Rumination, a form of repetitive negative thinking, uniquely predicts suicidal ideation (SI) in individuals with internalizing disorders. Assessing rumination may improve suicide risk evaluations for these patients.

Keywords:
AnxietyMajor depressionRuminationSuicidalityWorry

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Area of Science:

  • Psychology
  • Psychiatry
  • Clinical Psychology

Background:

  • Suicidal ideation (SI) is a significant risk factor for suicide, frequently observed in internalizing psychopathologies like depression and anxiety.
  • Repetitive negative thinking (RNT), encompassing rumination and worry, is strongly linked to internalizing disorders, yet their specific associations with SI require further clarification in clinical populations.

Purpose of the Study:

  • To investigate the distinct and shared relationships between rumination, worry, and suicidal ideation (SI) in clinical samples with internalizing psychopathologies.
  • To determine if rumination or worry are unique predictors of SI in individuals seeking treatment for internalizing disorders.

Main Methods:

  • Secondary data analysis of two independent clinical samples (N=143 and N=133) of treatment-seeking individuals with internalizing psychopathologies.
  • Correlational and regression analyses were employed to examine the associations between rumination, worry, and SI, controlling for relevant covariates like symptom severity, age, and the other RNT construct.

Main Results:

  • Approximately half of the participants reported experiencing suicidal ideation across both studies.
  • A significant positive correlation was found between rumination and worry in both samples.
  • Rumination emerged as a significant, stable, and unique positive predictor of SI, even after controlling for symptom severity, worry, and age. Findings for worry as a predictor of SI were inconsistent across the two studies.

Conclusions:

  • Rumination, a component of repetitive negative thinking, appears to be a more consistent and unique contributor to suicidal ideation than worry in individuals with internalizing psychopathologies.
  • The findings suggest that incorporating assessments of rumination into suicide risk evaluations for individuals with internalizing conditions may be clinically beneficial.