Implicit and Explicit Assessment of Suicide Risk (MIERIS)

In 2007 Nock & Banaji developed a so-called implicit suicide risk measurement using a computer tool: the Implicit Association Test (IAT). This measurement, associated with traditional evaluations, makes it possible to better predict suicidal recurrence. In 2020, the Poitiers team of Tello was able to replicate these results on a French population. However, although a high IAT score predicts the onset of suicide at 1 year, there is no data on how this score changes over time nor even data concerning the measure's ability to differentiate a population with explicit suicidal ideation from a population without explicit suicidal ideation. The investigators therefore seek to demonstrate an evolution of implicit suicidal ideation over time by replicating the measurement at inclusion, at 6 months and at 12 months, for different patient profiles: Suicidal ideation vs No suicidal ideation and suicide attempt vs no suicide attempt. Patients will be recruited from the emergency-unit of CHU Amiens-Picardie and will take the suicide-IAT as well as various questionnaires.

Study Overview

• Status: Recruiting
• Conditions: Suicide; Implicit Association Test; Prevention, Suicide; Suicide Risk Factor
• Intervention / Treatment: Other: Implicit Attitude Test

• Study Type: Interventional
• Enrollment (Estimated): 108
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Jérôme Thilliez, MD; Phone Number: 03.22.66.82.90; Email: thilliez.jerome@chu-amiens.fr

Study Locations

• France
  • Picardie
    • Amiens, Picardie, France, 80000
      • Recruiting
      • Centre Hospitalier Universitaire d'Amiens
      • Contact: Jérôme Thilliez, MD; Phone Number: 03.22.66.82.90; Email: thilliez.jerome@chu-amiens.fr

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Person presenting to emergencies for psychiatric reasons
• Adult person
• Free and informed consent signed
• Person speaking and writing French fluently

Exclusion Criteria:

• Neurological disorders or major cognitive deterioration: presence of confusion
• Acute psychotic decompensation
• Troubled acute behavior
• Abuse Impregnation of a toxic substance and / or drug impairing cognitive functions at the time of assessment
• Adult under protective measure.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Patient with explicit suicidal ideation and suicide attempt	Other: Implicit Attitude Test; The IAT (Implicit Attitude Test) is a method of indirectly measuring the relative strength of associations between different concepts stored in memory based on reaction times on computer. The general idea behind this measure is that an individual will be much faster to categorize an object into a predetermined category, if this categorization is consistent with their own way of processing information.
Experimental: Patient with explicit suicidal ideation without suicide attempt	Other: Implicit Attitude Test; The IAT (Implicit Attitude Test) is a method of indirectly measuring the relative strength of associations between different concepts stored in memory based on reaction times on computer. The general idea behind this measure is that an individual will be much faster to categorize an object into a predetermined category, if this categorization is consistent with their own way of processing information.
Active Comparator: Patient without explicit suicidal ideation	Other: Implicit Attitude Test; The IAT (Implicit Attitude Test) is a method of indirectly measuring the relative strength of associations between different concepts stored in memory based on reaction times on computer. The general idea behind this measure is that an individual will be much faster to categorize an object into a predetermined category, if this categorization is consistent with their own way of processing information.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Variation of IAT score betwenn the 3 groups	IAT is Implicit Attitude Test The IAT is a brief computer-administered test that uses people's reaction times when classifying semantic stimuli to measure the automatic mental associations they hold about various topics, in this case, life and death/suicide. The death/suicide IAT will be administered and scored in keeping with standard IAT procedures. Response latencies for all trials were recorded and analyzed using the standard IAT scoring algorithm.	one year

Collaborators and Investigators

• Sponsor: Centre Hospitalier Universitaire, Amiens
• Collaborators: Centre Hospitalier Pinel d'Amiens

Study record dates

Study Major Dates

• Study Start (Actual): June 28, 2022
• Primary Completion (Estimated): December 1, 2025
• Study Completion (Estimated): January 1, 2026

Study Registration Dates

• First Submitted: June 6, 2023
• First Submitted That Met QC Criteria: June 6, 2023
• First Posted (Actual): June 15, 2023

Study Record Updates

• Last Update Posted (Actual): May 29, 2025
• Last Update Submitted That Met QC Criteria: May 23, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Keywords: Suicide; Implicit association test; Prevention, Suicide; suicide risk factor
• Additional Relevant MeSH Terms: Behavioral Symptoms; Self-Injurious Behavior; Suicide
• Other Study ID Numbers: PI2020_843_0118

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No