What does EMDR do?
To understand how EMDR works, you first need to understand what happens in the brain when a traumatic or aversive experience occurs. Your body naturally processes new information and experiences without your conscious awareness. Processing can mean making sense of what happened, learning from the experience, then storing it neatly into the library of long-term memory.
However, when you encounter an extraordinary event that overwhelms you (something horrific or terrifying like an assault or a situation in which you thought you were going to die) or you face ongoing distress (such as childhood neglect or psychological abuse), your natural processing mechanisms may become overwhelmed. Your brain does now know how to make sense of what happened and cannot file it away neatly in the long-term memory library.
Instead, the disturbing experiences can become ‘frozen’ or ‘unprocessed’ in your brain. These unprocessed memories and emotions are stored in the limbic system in a raw, emotional state rather than as a verbal ‘story’. This system keeps traumatic memories in a separate network associated with emotions and physical sensations, disconnected from the brain’s cortex, where memories are processed and made sense of with language. Memory fragments and the emotions associated with the trauma are often sitting just under the surface of awareness and can be easily triggered by reminders of or associations with the original trauma, even if the memory itself is forgotten. When trauma or aversive memories are triggered (consciously or not), you can re-experience the traumatic event as if it is happening again now (flashbacks) or you can be overwhelmed with a strong and painful emotion such as fear, shame, dread or rage (emotional flashbacks).
‘Triggered’, in the true sense of the word, is when a traumatic memory is activated, causing you to have a flashback or to become so engulfed with distress that is difficult to understand or control and makes it hard function as you normally would. Your body automatically reacts as if the danger is happening again in the present and your nervous system involuntarily goes into a threat state (typically fight, flight, freeze or fawn) to try to survive. Sometimes, people spend the majority of their time living in a threat state. This leaves them unable to feel safe even when there is no present danger; they cannot relax, sleep or concentrate. They often become highly reactive, numb, or unable to feel any positive emotions. They often struggle to connect or feel safe in relationships with others, and they often find themselves turning towards alcohol or other unhealthy behaviours to settle their nervous systems.
Sometimes the details of the trauma memories are unclear and jumbled, sometimes it feels like the traumatic incident is not related to what is happening in the present as it has been somewhat blocked from awareness. Sometimes trauma memories can play on repeat, like a movie that keeps playing the worst part over and over again. EMDR kickstarts the natural healing process of the brain that has become stuck due to the traumatic or aversive experience being too much for it to process on its own. EMDR helps the brain re-process and desensitise the memory. Re-processing means helping your brain make sense of what happened, helping you see it from a different and more helpful perspective and to file it away in long-term memory so that it no longer sits just under the surface ready to emerge at any time. Desensitising means helping the memory become less emotionally charged so when you think of it, you no longer become overwhelmed or experience other trauma symptoms such as flashbacks and hyperarousal. EMDR can help people regain a sense of safety, to be able to relax, build healthier relationships, develop a sense of self-worth and function better in their day to day lives.