The present findings suggest a new technique to target specific fear memories and prevent the return of fear after extinction training. Using two recovery assays, we demonstrated that extinction conducted during the reconsolidation window of an old fear memory prevented the spontaneous recovery or the reinstatement of fear responses, an effect that was maintained a year later. Moreover, this manipulation selectively affected only the reactivated conditioned
stimulus while leaving fear memory to the other non-reactivated conditioned stimulus intact.

It has been suggested that the adaptive function of reconsolidation is to allow old memories to be updated each time they are retrieved. In other words, our memory reflects our last retrieval of it rather than an exact account of the original event.

Daniela Schiller, Associate Professor, Mount Sinai Hospital on groundbreaking research on memory , and whether we might enable us to block highly traumatic memories.

Here is a good article on this same subject published in New Yorker by Daniela Schiller:  http://www.newyorker.com/magazine/2014/05/19/partial-recall

BODY-ORIENTED TRAUMA THERAPY: Clinical Perspectives. Examines the nature of trauma and its long-term effects, including recent research. Presenters include Dr Stephen Porges (creator of Polyvagal Theory), Dr Peter Levine (Creator of Somatic Experiencing), Dr Pat Ogden (Creator of Sensorimotor Psychotherapy), and Dr Bessel van der Kolk (Researcher and Author: Body Keeps the Score)

Somatic Experiencing (Developed by Peter Levine, Ph.D.): Nature’s Lesson in Healing Trauma
Dr. Peter A. Levine received his PhD in medical biophysics from the University of California in Berkeley and also holds a doctorate in psychology from International University. He has worked in the field of stress and trauma for over 40 years and is the developer of Somatic Experiencing. Peter’s original contribution to the field of Body-Psychotherapy was honored in 2010 when he received the Lifetime Achievement award from the United States Association for Body Psychotherapy (USABP). That same year he also received the honorary Reis Davis Chair in Child Psychiatry for his innovative contribution to therapy for children and adolescents.

Throughout his life, Peter Levine has studied the effects of stress on the human nervous system and body. Beginning in the 1970’s, Peter’s explorations into how animals deal with threat led to the development of a method that is highly effective in dealing with the effects of overwhelm on our nervous system, called Somatic Experiencing (SE). SE is a clinical methodology based upon an appreciation of why animals in the wild are not traumatized by routine threats to their lives, while humans, on the other hand, are readily overwhelmed and often subject to the traumatic symptoms of hyper arousal, shutdown and dysregulation. Fortunately, the very same instincts — and related survival based brain systems 
— that are involved in the formation of trauma symptoms can be enlisted in the transformation and healing of trauma. Therapeutically, this “instinct to heal” and self-regulate is engaged through the awareness of empowering body sensations that contradict those of paralysis and helplessness. These new experiences create a foundation for restored resilience, equilibrium and wholeness.

Dr. Peter A. Levine received his PhD in medical biophysics from the University of California in Berkeley and also holds a doctorate in psychology from International University. He has worked in the field of stress and trauma for over 40 years and is the developer of Somatic Experiencing. Peter’s original contribution to the field of Body-Psychotherapy was honored in 2010 when he received the Lifetime Achievement award from the United States Association for Body Psychotherapy (USABP). That same year he also received the honorary Reis Davis Chair in Child Psychiatry for his innovative contribution to therapy for children and adolescents.

Throughout his life, Peter Levine has studied the effects of stress on the human nervous system and body. Beginning in the 1970’s, Peter’s explorations into how animals deal with threat led to the development of a method that is highly effective in dealing with the effects of overwhelm on our nervous system, called Somatic Experiencing (SE). SE is a clinical methodology based upon an appreciation of why animals in the wild are not traumatized by routine threats to their lives, while humans, on the other hand, are readily overwhelmed and often subject to the traumatic symptoms of hyper arousal, shutdown and dysregulation. Fortunately, the very same instincts — and related survival based brain systems 
— that are involved in the formation of trauma symptoms can be enlisted in the transformation and healing of trauma. Therapeutically, this “instinct to heal” and self-regulate is engaged through the awareness of empowering body sensations that contradict those of paralysis and helplessness. These new experiences create a foundation for restored resilience, equilibrium and wholeness.

Peter is the author of the best selling book Waking the Tiger: Healing Trauma — which was published in 24 languages and sold over 250,000 copies — as well as four audio learning series for Sounds True including the book/CD, Healing Trauma: a Pioneering Program in Restoring the Wisdom of Our Bodies and Sexual Healing, Transforming the Sacred Wound. He is the co-author of Trauma through a Child’s Eyes: Awakening the Ordinary Miracle of Healingand Trauma-Proofing Your Kids: A Parents Guide for Instilling Confidence, Joy and Resilience. He recently released with Maggie Phillips the book/CD Freedom from Pain: Discover Your Body's Power to Overcome Physical Pain. Dr. Levine’s most recent book, his magnum opus, In an Unspoken Voice: How the Body Releases Trauma and Restores Goodness, is receiving international praise.

Powerful documentary featuring Bryan Post, Bruce Perry, M.D., Daniel Siegel M.D., Marti Glenn PhD and other renowned experts in the field of childhood trauma, and attachment and bonding. This is a great way to share with friends, colleagues, and caregivers this new understanding of how trauma effects the development of the mind body system, and how it affects children's behaviors and social relationships. This is a popular training video with agencies for training and for group presentations. Copies can be purchased a www.postinstitute.com/dvds. Video originally produced by Santa Barbara Graduate Institute which has since been merged with a major university and no longer exists as a separate entity.

TRE stands for Tension and Trauma Releasing Exercises. They help individuals release stress or tension as a result of difficult life circumstances, immediate or prolonged stressful situations, or traumatic life experiences. TRE consists of six simple exercises that help individuals release tension from the muscles, which in turn relaxes the anxiety of our minds, by evoking a muscular shaking process in the body.

The exercises elicit this shaking in a controlled and sustained manner. When evoked in this way, this shaking begins to release deep chronic muscular tension held within the body. They come from the center of gravity of the body (S3), which is protected by the psoas muscles. When shaking is evoked at this powerful center of the body, it reverberates throughout the entire body, traveling along the spine, releasing deep chronic tension from the sacrum to the cranium. When tension is released anywhere in the body, the brain registers a reduction in pain signals and produces new hormones for relaxation and comfort. Often, this release of tension is much like receiving an internal massage. 
Source: http://www.bercelifoundation.org/s/1340/aff_2_interior.aspx?sid=1340&gid=1&pgid=327

Psoas muscle
The Psoas muscle (pronounced so-as) is the deepest muscle of the human body affecting our structural balance, muscular integrity, flexibility, strength, range of motion, joint mobility, and organ functioning.

Growing out of both sides of the spine, the psoas spans laterally from the 12th thoracic vertebrae (T12) to each of the 5 lumbar vertebrae. From there it flows down through the abdominal core, the pelvis, to attach to the top of the femur (thigh) bone.

The Psoas is the only ‘muscle’ to connect the spine to the legs.  It is responsible for holding us upright, and allows us to lift our legs in order to walk. A healthily functioning psoas stabilizes the spine and provides support through the trunk, forming a shelf for the vital organs of the abdominal core.

The psoas is connected to the diaphragm through connective tissue or fascia which affects both our breath and fear reflex. This is because the psoas is directly linked to the reptilian brain, the most ancient interior part of the brain stem and spinal cord. Long before the spoken word or the organizing capacity of the cortex developed, the reptilian brain, known for its survival instincts, maintained our essential core functioning.

Our fast paced modern lifestyle (which runs on the adrenaline of our sympathetic nervous system) chronically triggers and tightens the psoas – making it literally ready to run or fight. The psoas helps you to spring into action – or curl you up into a protective ball.

Source: https://bodydivineyoga.wordpress.com/2011/03/23/the-psoas-muscle-of-the-soul/