Research has consistently demonstrated that performance is degraded when participants engage in two simultaneous tasks that require the same working memory resources. This study tested predictions from working memory theory to investigate the effects of eye movement (EM) on the components of autobiographical memory. In two experiments, 24 and 36 participants, respectively, focused on negative memories while engaging in three dual-attention EM tasks of increasing complexity. Compared to No-EM, Slow-EM and Fast-EM produced significantly decreased ratings of image vividness, thought clarity, and emotional intensity, and the more difficult Fast-EM resulted in larger decreases than did Slow-EM. The effects on emotional intensity were not consistent, with some preliminary evidence that a focus on memory-related thought might maintain emotional intensity during simple dual-attention tasks (Slow-EM, No-EM). The findings of our experiments support a working memory explanation for the effects of EM dual-attention tasks on autobiographical memory. Implications for understanding the mechanisms of action in EMDR are discussed.

Unlike high-intensity treatment, in which clients have face-to-face contact with a mental health specialist, clients in low-intensity treatment have limited or no contact with a specialist. Instead, their treatment is usually provided through self-help procedures, which are delivered via (guided) computer programs, books, or “mHealth" apps. Other treatments sometimes considered low-intensity are brief treatments, group therapy, and interventions delivered by nonspecialists. Advantages include effectiveness, accessibility, efficiency, and affordability. Concerns related to safety, engagement, and adherence to self-help programs may be addressed by (asynchronous) therapist guidance. This article describes low-intensity treatments and their relevance for eye movement desensitization and reprocessing (EMDR) therapy. Hundreds of randomized controlled trials (RCTs) have found self-help interventions to be efficacious, with many producing the same level of results as the traditional face-to-face procedure. Guided self-help cognitive behavioral therapy is recommended for the treatment of posttraumatic stress disorder in the guidelines of both the National Institute for Health and Care Excellence and International Society of Traumatic Stress Studies. Only three self-help-EMDR RCTs have been conducted. This author advocates for reconceptualizing EMDR group therapy as “guided self-help-EMDR therapy,” because it is a highly manualized, heavily scripted treatment in which the client works independently on their own material. In this respect, it offers an excellent template for the future development of efficacious low-intensity EMDR interventions. Developing safe, easy-to-use, affordable, and readily available low-intensity interventions will make effective EMDR treatment available to many millions of people around the world.

Thirty years after its introduction in 1989, eye movement desensitization and reprocessing (EMDR) therapy has evolved to become a comprehensive psychotherapy, guided by Shapiro's adaptive information processing model. Her model views most mental health disorders as stemming from unprocessed earlier disturbing events. This understanding of the etiological role of trauma has opened the door for EMDR treatment of multiple types of presentations. There are now more than 44 randomized controlled trials that have investigated EMDR treatment of posttraumatic stress disorder (PTSD), early traumatic stress, and traumatized children. In addition, there are 28 randomized controlled trials which have evaluated its use with major depressive disorder, bipolar disorder, psychosis, anxiety disorders, obsessive compulsive disorder, substance use disorder, and pain. Seventy-five percent of these studies provided Shapiro's standardized procedure, while others tested modifications developed for specific populations. The focus of treatment varied across the studies, with various targets being processed to achieve good outcomes. The research demonstrates EMDR's effectiveness in reducing/eliminating PTSD and trauma-related symptoms, and in improving symptoms related to presenting problems and disorders. EMDR can be considered to have well-established efficacy for the treatment of PTSD. The emerging evidence for EMDR's efficacy with disorders other than PTSD must be considered preliminary and in need of replication conducted with randomized controlled trials using rigorous methodology. EMDR's position in various treatment guidelines is discussed, and the needs for future research are elaborated.

This article provides an overview of significant milestones in EMDR history over the first 20 years. A chronological outline lists key events, documenting important publications, conferences, and humanitarian efforts. This is followed by a list of countries in which EMDR currently has an active presence.

Cancer is not only a debilitating disease; it can also have devastating effects on a patient’s mental health and quality of life. Although the literature shows that mortality rates may be improved with the provision of effective treatment, most psychotherapy provided to patients with cancer tends to be quite generic and not always effective. Very few research studies have investigated the provision of trauma-focused therapies to this underserved population. Eye movement desensitization and reprocessing (EMDR) therapy has well-established efficacy in the treatment of traumatic stress and preliminary evidence in the treatment of depression and anxiety. It is a very effective and accessible treatment for patients with cancer. Because it does not require homework, it is less demanding than many other forms of treatment. It can be provided on an intensive (twice) daily basis, making it available to patients traveling from out of town for their cancer treatment. For those patients unable to manage trauma-focused treatment during a difficult time, it can be used to enhance personal resources. EMDR therapy can be administered in individual, group, and couple formats and is suitable for children as well as adults. New research provides promising results for the application of EMDR for patients with cancer.