Clock'N' Test: Development and Validation of a Test to Evaluate Emotional Disorders (Clock'N'test)

Clock'N' Test: Development and Validation (in a Control Population) of a Test Based on Time Estimations and Aiming to Evaluate Emotional Disorders

This study concerns the validation of a clinical test that aims to reveal "first level" emotional disorders in neurological diseases.

In order to bring to light such disorders, it is necessary to begin by establishing reference values in healthy individuals. This test is based on the priming effect and time estimations. The test procedure has two successive phases. The first phase aims to determine the judgement of time inherent to each participant and then to assess whether or not this judgement varies during the second phase with the introduction of emotional priming. First, we set out to look for and to calibrate video stimuli able to activate emotions. To this end, we used a battery of 70 sequences developed recently by Schaefer, Nils, Sanchez and Philippot. We determined their degree of physiological activation by measuring the electrodermal response at the laboratory for the exploration of the nervous system in Dijon. These measurements also allowed us to define and refine our paradigm, notably by deciding at what moment the time estimation task should be done and by eliminating the influence of attention. We decided to select only seven video sequences because we noticed a reduction in the measurement effect on time estimations due to habituation of the subject. We also conducted pre-tests in a control population made up of twenty men and women aged from 20 to 60 years.

This brought to light a warp in time estimation opposite to that we found using olfactory stimuli. This first finding suggests that there are two types of emotion, one which is anticipative and the other immediately experienced.

Study Overview

• Status: Completed
• Conditions: Healthy

• Study Type: Observational
• Enrollment (Actual): 150

Contacts and Locations

Study Locations

• France
  • Dijon, France, 21079
    • CHU de Dijon

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 92 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

This test is based on the priming effect and time estimations. The test procedure has two successive phases. The first phase aims to determine the judgement of time inherent to each participant and then to assess whether or not this judgement varies during the second phase with the introduction of emotional priming.

Description

Inclusion Criteria:

• persons who have given their consent to participate
• aged between 20 and 92 years.
• persons who understand and speak French.
• persons informed about the study

Exclusion Criteria:

• persons without national health insurance cover
• disease likely to cause emotional disorders (history of paralimbic brain tumour, MS, Parkinson, history of depression, bipolar disorder…).
• heart disease, spasmophilia.
• cognitive disorders likely to interfere with understanding the instructions.
• visual or auditory, sensory or motor disorders.
• refusal to participate in the study.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Score obtained in the Clock n'test: [time estimation with priming]-[time estimation without priming].	Bring to light "first-level" emotional disorders. It is based on the priming effect of time estimation	1 day

Collaborators and Investigators

• Sponsor: Centre Hospitalier Universitaire Dijon

Study record dates

Study Major Dates

• Study Start (Actual): April 1, 2014
• Primary Completion (Actual): April 1, 2015
• Study Completion (Actual): June 1, 2015

Study Registration Dates

• First Submitted: February 2, 2017
• First Submitted That Met QC Criteria: August 4, 2017
• First Posted (Actual): August 9, 2017

Study Record Updates

• Last Update Posted (Actual): August 9, 2017
• Last Update Submitted That Met QC Criteria: August 4, 2017
• Last Verified: January 1, 2017

More Information

Terms related to this study

• Keywords: Validate the Clock'nTest
• Other Study ID Numbers: GROS-GIROUD-2014

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