The client holds the image, the negative belief, and the body sensation together, and you begin sets of bilateral stimulation. After each set: "What do you notice now?" You don't interpret, reassure, or steer. You follow. This is Phase 4, and its discipline is restraint.
Following the channel
Once activated, the memory network begins to move along associative pathways — channels. A client starts with the car accident and finds themselves at a childhood scene of not being protected; the network is showing you what belongs together. Your task is to stay out of the way, keep the dual attention going, and let each set open onto the next association until the channel empties.
You are not driving. You're keeping the headlights on while the client's own system finds the road.
SUD as the compass
Periodically you return to the target and re-check the SUD. A falling number means reprocessing is working. A number that won't move signals a blocking belief — a hidden cognition (if I let this go I'm betraying someone; if I'm not vigilant I'll be hurt again) that has to be addressed, often with a cognitive interweave, before the channel can clear.
Interweaves and looping
When processing loops — the same content circling without change — you introduce a cognitive interweave: a carefully placed question or piece of information that jump-starts adaptive processing without taking over. "Who was responsible?" "Are you safe now?" "Whose voice is that?" Used sparingly, an interweave is the difference between a stuck session and a breakthrough.
Abreaction, held safely
Sometimes desensitization surfaces intense emotion or bodily release — abreaction. The Phase 2 resources exist for exactly this. You stay calm, keep the stimulation going through the wave when clinically appropriate, remind the client it's old material moving through, and let it complete. A well-prepared client moves through abreaction rather than being retraumatized by it.
Reaching zero
Desensitization on a target is complete when the SUD reaches 0 (or an ecologically valid floor — grief for a real loss won't and shouldn't hit zero). Then, and not before, you move to Phase 5: Installation, where the positive belief gets locked in. The precision of Phase 3 is what makes this phase followable.
For clinicians
Hold the gains between sessions
After a hard reprocessing session, clients can use Rewire's Container and Calm Place tools to settle — and you'll see they did.
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