Cognitive and Emotional Factors in Visual Exploration Among Patients With Post-Traumatic Stress Disorder (SAILLANCE2)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-05-31

Study Completion Date

2020-05-05

Brief Summary

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Post-traumatic stress disorder (PTSD) is characterized by hypervigilance. In particular, previous works suggest that patients tend to scan constantly the environment for possible threats. The present project aims at investigating such attentional bias in patients with PTSD using the change blindness paradigm that offers the interesting possibility of studying sensitivity to sudden changes using ecological stimuli. More precisely, the investigators will investigate whether patients are more sensitive than matched controls to sudden changes in the visual environment and whether this hypersensitivity is specific or even stronger when visual information has an emotional content. The attentional bias will be measured using motor responses (accuracy and speed to indicate the occurrence of a change by pressing a button) as well as eye movements.

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Detailed Description

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Conditions

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Post-Traumatic Stress Disorder

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Post-Traumatic Stress Disorders (PTSD)

30 patients with PTSD (diagnosis based on the standard DSM criteria)

No interventions assigned to this group

Controls

30 healthy controls without any psychiatric or neurological diagnosis

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* a diagnosis of PTSD based on the standard DSM-IV criteria,
* normal or corrected vision.
* clinically stable at the testing time

Exclusion Criteria

* history of neurological illness or trauma that occurred in the previous six months, - pregnant and nursing women,
* drugs use in the last 24 hours,
* an acute ocular disorder.
* Participants will not be under tutorship, curatorship or deprived of liberty.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No