The standard method of bilateral stimulation in EMDR: the client tracks a moving object (the therapist's finger, a stylus, a light bar) from left to right and back. One set is 24–36 movements at a frequency of about 1.5 Hz (30–60 seconds). The client holds the target image in mind, while the head stays still. This method is the most studied and shows the strongest effect on lowering the vividness of traumatic images.
Step-by-step guide
- Place the finger or stylus 30–40 cm from the client's face
- Have the client hold the target image in mind
- Make smooth movements left-to-right at the level of the client's eyes
- Start slowly, then accelerate to a comfortable speed (1.5 Hz)
- The standard set: 24–36 movements (30–60 seconds)
- After the set: "What is happening?" or "What is the SUD now?"
When to use
- The primary BLS method in the Desensitization phase (Phase 4) and the Installation phase (Phase 5)
- When there are no contraindications to eye movements
Key phrases
Hold the image in mind and follow my finger with your eyes — the head stays still.
Follow-up questions
What is happening now?
Just let everything happen — there is no need to direct or stop it
Alternative phrasings
If it is hard to follow the finger — a light point can be used
The speed can be adjusted — say if it is too fast or too slow
Warnings
- ⚠️ Contraindicated in epilepsy, photosensitivity, and serious vision impairments
- ⚠️ With vestibular problems — be careful, dizziness is possible
- ⚠️ With eye trauma or eye surgery — use tapping
Source: Shapiro, F. 1989; Shapiro, 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.