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Related Experiment Video

Updated: Jun 5, 2026

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
09:12

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Published on: March 17, 2019

Rethinking impulsivity in suicide.

E David Klonsky1, Alexis May

  • 1Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC Canada V6T 1Z4. edklonsky@gmail.com

Suicide & Life-Threatening Behavior
|January 5, 2011
PubMed
Summary
This summary is machine-generated.

Impulsivity traits differ between suicide attempters and ideators. While both groups show high urgency, only attempters exhibit poor premeditation, suggesting distinct pathways in suicide risk.

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Area of Science:

  • Psychology
  • Psychiatry
  • Behavioral Science

Background:

  • Elevated impulsivity is a known risk factor for suicidal behavior.
  • Distinguishing between suicidal ideation and attempts is crucial for understanding suicide risk.

Purpose of the Study:

  • To investigate whether different facets of impulsivity differentiate individuals with a history of suicide attempts from those with only suicidal ideation.
  • To examine the role of unidimensional versus multidimensional impulsivity measures in predicting suicide attempts.

Main Methods:

  • Three large nonclinical samples (military recruits, college students, high school students) were assessed.
  • A unidimensional impulsivity measure was used in the first sample.
  • A multidimensional impulsivity measure (UPPS Impulsive Behavior Scale) was administered to the latter two samples.

Main Results:

  • A unidimensional impulsivity measure failed to distinguish attempters from ideators-only in military recruits.
  • In college and high school students, both attempters and ideators-only reported high urgency.
  • Poor premeditation was uniquely associated with suicide attempts, not ideation alone.

Conclusions:

  • Multidimensional impulsivity measures reveal distinct traits associated with suicide attempts versus ideation.
  • Urgency is common to both suicidal ideation and attempts, but poor premeditation specifically characterizes attempts.
  • Suicide risk models should incorporate nuanced, multidimensional assessments of impulsivity to better differentiate ideation from action.