A better understanding of the Complex Post-Traumatic Stress Disorder would allow a management as close as possible to the specificities of this one, but also a better training of professionals and adapted therapeutic indications.

Post-Traumatic Stress Disorder manifests itself in a multitude of symptoms and self-regulation difficulties in various domains (somatization and biological balance, attention and consciousness, regulation of affects and impulses, interpersonal relationships and relational capacities, perception of the aggressor and of the aggression, self-perception and identity, sense and belief system) as well as profound changes in personality and various comorbidities .In addition, dissociation, the origin and the resulting disorders also have some similarities to Complex Post-Traumatic Stress Disorder. Indeed, dissociation is thought to have a traumatic origin and the symptomatology (eg hyperesthesia, dissociative amnesia, anesthesia) is included in Complex Post-Traumatic Stress Disorder. We can then ask ourselves the following questions: is Complex Post-Traumatic Stress Disorder a dissociative disorder in its own right causing difficulties with self-regulation? What is the share of dissociation in Complex Post-Traumatic Stress Disorder?

Inclusion Criteria:

For clinical population;

• Age between 18 and 65 years old;
• Having experienced repeated and prolonged traumatic exposure;
• Able to understand and answer self-questionnaires;
• Having expressed their free and informed consent
• Affiliated with a social security scheme

For general population:

• Student volunteers from the University of Lille;
• Aged between 18 and 65 years old;
• Able to understand and answer self-questionnaires;
• Having expressed their free and informed consent.

Exclusion Criteria:

For clinical population;

• People with difficulties in answering the self-questionnaires (e.g. incomprehension of items, emotional difficulties);
• Persons under tutorship or curatorship;
• Persons deprived of their liberty.

For general population:

• People with difficulties in answering the self-questionnaires (e.g. incomprehension of items, emotional difficulties);
• Persons under tutorship or curatorship;
• Persons deprived of their liberty;
• Persons having a link of subordination with the investigative team.

The clinical population is made up of individuals who are victims of repeated trauma and are cared for in specialized centers; The general reference population is made up of volunteer students from the University of Lille.