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Decision Making Under Ambiguity and Under Risk in Depressed Suicide Attempters, Depressed Non-Attempters and Healthy Controls

Published online by Cambridge University Press:  23 March 2020

E.A. Deisenhammer
Affiliation:
Medical University of Innsbruck, Psychiatry, Innsbruck, Austria
S.K. Schmid
Affiliation:
Medical University of Innsbruck, Psychiatry, Innsbruck, Austria
G. Kemmler
Affiliation:
Medical University of Innsbruck, Psychiatry, Innsbruck, Austria
B. Moser
Affiliation:
Medical University of Innsbruck, Psychiatry, Innsbruck, Austria
M. Delazer
Affiliation:
Medical University of Innsbruck, Neurology, Innsbruck, Austria

Abstract

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Introduction

Study results on decision-making (DM) abilities in suicidal individuals are conflicting. Most studies have focused on DM under ambiguity and included patients with a lifetime history of suicide attempts.

Objective

To assess DM abilities with two different instruments in recent suicide attempters.

Methods

The study sample consisted of three groups. Group 1 (SA) were currently depressed inpatients having attempted suicide within the previous six months. Group 2 (NSA) consisted of depressed inpatients without a lifetime history of suicide attempts. Group 3 (CG) was a healthy control group. Besides depression severity, impulsiveness and suicidal intent (SA group only) DM was assessed using the Iowa gambling task (IGT) for DM under ambiguity and the game of dice task (GDT) for DM under risk.

Results

A total of 78 participants (SA group, n = 21; NSA group, n = 31; CG, n = 26) were included into the study. Significant between group differences were found regarding marital status, current partnership, smoking status, depression score, impulsiveness score and family history of psychiatric disorders (all discriminating controls from patients but not between SA and NSA groups). The three groups did not differ with regard to IGT scores. Concerning GDT, the SA group showed significantly lower scores compared to the two other groups, implying a readiness for more risky decisions in suicide attempters versus non-attempters and controls.

Conclusion

Suicide attempters appear to make more risky decisions compared to depressed non-attempters as well as healthy controls even if the DM under ambiguity patterns do not differ.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
e-Poster Walk: Suicidology and suicide prevention – part 1
Copyright
Copyright © European Psychiatric Association 2017
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