Reactivity of Patients With Borderline Personality Disorder to an Ecological Interpersonal Stress

Use lay language. According to the World Health Organization 1 death by suicide occurs every 40 seconds, leading suicide prevention to one of the public health priority. BPD (Borderline Personality Disorder) is a common condition affecting 6% of the population. This disorder is characterized by unstable emotions, unstable mood, difficulties with relationship and feer of abandonment. Borderline Personality Disorder is also the psychopathology the most related to suicidal attempts. Indeed, up to 50% of the patients admitted to hospital after a suicide attempt are diagnosis with a Borderline Personality Disorder Negative interpersonal events (events occurring between two people) are known as the main stressor that trigger a suicidal attempt. People with a Borderline Personality Disorder are highly sensitive to it. Moreover, neuropeptides such as oxytocin (OXT), vasopressin and opioid are known to be involved in the regulation of the emotions, especially those linked to relationship. The purpose of this study is to improve knowledge in suicidal behaviors. After simulating an interpersonal stress, the evolution of plasma neuropeptides level (OXT, vasopressin and opioid) of patients with a BPD will be compared to healthy controls (HC). Clinical data reflecting how the participant is feeling will be collected as well.