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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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Trait impulsivity in suicide attempters: preliminary study.

Chiho Doihara1, Chiaki Kawanishi, Nene Ohyama

  • 1Health Management and Promotion Centre, Yokohama City University Graduate School of Medicine, Yokohama, Japan.

Psychiatry and Clinical Neurosciences
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Suicide attempters exhibit higher impulsivity, particularly in attention and motor control. Targeting impulsivity may be crucial for suicide prevention strategies.

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Area of Science:

  • Psychiatry
  • Psychology
  • Neuroscience

Background:

  • Suicide attempt is a significant risk factor for completed suicide.
  • Understanding the psychological traits associated with suicide attempts is crucial for prevention.

Purpose of the Study:

  • To investigate trait impulsivity in individuals who have attempted suicide.
  • To analyze impulsivity in relation to clinical data among suicide attempters.

Main Methods:

  • Evaluated 93 suicide attempters and 113 healthy controls using the Japanese version of the Barratt Impulsiveness Scale (BIS-11J).
  • Assessed impulsivity scores and analyzed them against clinical data.

Main Results:

  • Suicide attempters scored significantly higher on total BIS-11J, attention impulsivity, and motor impulsivity compared to controls.
  • Attempters diagnosed with schizophrenia and psychotic disorders showed higher scores in total BIS-11J and non-planning impulsivity.

Conclusions:

  • Elevated impulsivity is a key characteristic of suicide attempters.
  • Impulsivity control should be a target for developing effective suicide prevention interventions.