Installation of the Positive Cognition

Once distress has cleared, strengthen the preferred self-belief with bilateral stimulation.

Why it works

After the distress associated with a memory drops to near-zero, the reconsolidation window is open: the memory is active but no longer emotionally hot. Pairing the positive cognition ("I am safe now," "I handled it") with bilateral stimulation during this window is intended to link an adaptive belief to the memory trace during consolidation — replacing the negative cognition that the trauma installed.

How to do it

1. Check that SUD is at 0 or 1 before proceeding to Installation.
2. Pair the positive cognition with the original memory image and notice how true it feels (VOC).
3. Run sets of bilateral stimulation while holding both the image and the positive cognition.
4. Continue until the VOC reaches 7 ("completely true") or naturally plateaus.
5. Scan the body for any remaining tension — if found, process until clear before closing.

Evidence

Installation is a defined phase of the validated EMDR protocol; outcome studies cover the full protocol rather than isolating this phase. Memory reconsolidation research supports the plausibility of updating a belief attached to a newly reactivated memory. (mechanistic)

No studies have isolated Installation as a standalone procedure; its evidence rests on being embedded in the overall protocol that RCTs support.

Common mistake

Installing the positive cognition before distress has fully cleared — a memory still carrying emotional charge will resist the new belief, and the VOC will stall.