International Society for the Study of Trauma and Dissociation (ISST-D)

The International Society for the Study of Trauma and Dissociation is an international, non-profit, professional association organized to develop and promote comprehensive, clinically effective and empirically based resources and responses to trauma and dissociation and to address its relevance to other theoretical constructs.

ISST-D publishes The Journal of Trauma and Dissociation

Core Integrity

We seek to approach mental health from the premise that “injury” must be ruled out first before assigning an “illness” diagnosis. By broadening mental health to address both injury and illness, societal attitudes will change dramatically as individuals more readily and easily relate to those who are mentally “injured” or “wounded.”

Recent neurocognitive research in the study of consciousness supports the premise of the Core Integrity Model (CIM) that there is a resilient Core self that endures beyond the worst of injuries and that there can be restoration of mental control to the person. The CIM provides very specific tools that are trans-cultural because they use the natural neurocognitive processes of the brain. Utilization of these techniques allows the trauma survivor to regain executive control – lost in the traumatic event – of his or her own mind.

European Society for Trauma and Dissociation


To promote an increase in the knowledge of Trauma, Dissociation and all disorders related to chronic traumatization.

To provide professional and public education about dissociation, trauma and trauma related disorders.

To support communication and cooperation among clinicians and other professionals in the field of dissociation and trauma.

To stimulate national and international research projects.

To provide knowledge and education specifically to those countries in Europe who do not have easy access in this field.

Sidran Traumatic Stress Institute

Sidarn is a a 501(c)(3) nonprofit organization of international scope that helps people understand, recover from, and treat traumatic stress (including PTSD);
dissociative disorders; and co-occurring issues, such as addictions, self injury, and suicidality.

We develop and deliver: educational programming; resources for treatment, support, and self-help;  trauma-informed community and professional collaboration projects; and publications about trauma and recovery.

Sidran’s constituency is made up of any individuals or organizations touched by the effects of trauma.

The International Society for Traumatic Stress Studies (ISTSS)

ISTSS is an international multidisciplinary, professional membership organization that promotes advancement and exchange of knowledge about severe stress and trauma. This knowledge includes understanding the scope and consequences of traumatic exposure, preventing traumatic events and ameliorating their consequences, and advocating for the field of traumatic stress.

The ISTSS publishes The Journal of Traumatic Stress Studies


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