A numeric scale from 1 to 7 measuring how much the client believes the positive cognition (PC) when recalling the target image. It is measured twice: before reprocessing (usually 2–4) and after installation (target — 6–7). A rising VoC shows that the adaptive belief is consolidating in memory. The scale lets the therapist track progress in real time and recognize when the Installation phase is complete.
Step-by-step guide
- Have the client recall the target image
- Offer the PC and ask for a rating: "How true does [PC] feel right now? From 1 to 7"
- Record the initial VoC (usually 2–4 at the start)
- After desensitization is complete (SUD = 0) repeat the measurement
- Continue BLS until VoC reaches 6–7
- VoC < 6 after several sets — look for a blocking belief
When to use
- The Assessment phase (Phase 3) — initial measurement
- The Installation phase (Phase 5) — monitoring after each BLS set
Key phrases
Recall the image and tell me: how true does "I am able to cope" feel? From 1 to 7, where 1 is not at all true, 7 is completely true.
Follow-up questions
What is the VoC now, after this set?
What is keeping it from being a 7? What is in the way of fully believing it?
Alternative phrasings
Rate it not with the mind but intuitively — what does the body sense say?
Warnings
- ⚠️ VoC < 6 after the Installation phase is a signal to continue BLS or look for a blocking belief
- ⚠️ Sometimes "6 — the maximum for this situation" is ecologically realistic and normal
Source: Shapiro, 2001, 2018
Materials are informational and educational and summarize publicly available scientific sources. They are not medical or psychological advice, are not intended for self-diagnosis or self-treatment, and do not replace consultation with a qualified professional.