Eye Movement Desensitisation and Reprocessing (EMDR) and EMDR 2.0

The Adaptive Information Processing (AIP) Model

The foundational theory of EMDR is the AIP model, which suggests that the brain is naturally equipped to process and integrate life experiences.

Stuck Memories: When a traumatic or highly distressing event occurs, the brain's natural processing can be overwhelmed. These memories become"stuck" in their raw, original form—complete with the initial images, negative beliefs, and intense physical sensations.

Unblocking: EMDR procedures remove these "blocks," allowing the brain to resume its natural healing and integrate the traumatic memory into more healthy, adaptive networks.

Bilateral Stimulation (BLS)

Bilateral stimulation is the use of rhythmic, side-to-side sensory input—such as guided eye movements, alternating auditory tones, or tactile tapping.

REM Sleep Connection: It is widely believed that BLS mimics the rapid eye movements of REM sleep, a phase where the brain naturally sorts and files daily memories.

Working Memory Overload: Another leading theory is that focusing on atraumatic memory while following BLS overloads the brain's limited working memory. This makes it difficult for the brain to maintain the full emotional intensity of the memory, causing it to lose its "charge" and become less vivid over time.

Neurological Changes

EMDR physically changes how the brain responds to trauma:

Calming the Amygdala: EMDR reduces overactivation in the amygdala, the brain's "fear centre", which is responsible for the fight-or-flight response.

Engaging the Prefrontal Cortex: It increases activity in the prefrontal cortex, the rational part of the brain, allowing you to reframe the traumatic event logically rather than reacting emotionally.

Memory Reconsolidation: Activating a memory while using BLS makes it "unstable" and open to change, a process called memory reconsolidation. The memory is then re-stored in a more adaptive way, shifting it from being a present threat to a distant story.