EMDR Bilateral Stimulation Methods 3 — Questions and Answers
Question 1: What is the purpose of varying the speed of bilateral stimulation during an EMDR session?
- To confuse the client's nervous system
- To match the pace to the client's processing needs and window of tolerance (Correct answer)
- To reduce session time
- To follow a fixed protocol regardless of client response
Correct answer: To match the pace to the client's processing needs and window of tolerance
Speed of BLS can be adjusted to facilitate processing—faster may increase arousal for stuck processing, while slower may help a dysregulated client settle.
Question 2: A client with a history of complex trauma becomes highly dissociated during standard eye movement BLS. Which adjustment is MOST indicated?
- Increase speed to break through dissociation
- Use shorter BLS sets and ground between sets (Correct answer)
- Switch to a much longer continuous BLS set
- Avoid BLS entirely and use only talk therapy
Correct answer: Use shorter BLS sets and ground between sets
Shorter BLS sets with grounding between them help manage dissociation by keeping the client within their window of tolerance.
Question 3: In the EMDR protocol, bilateral stimulation is applied during which phase(s)?
- Phase 3 (Assessment) only
- Phase 4 (Desensitization), Phase 5 (Installation), and Phase 6 (Body Scan) (Correct answer)
- Phase 1 (History-Taking) and Phase 2 (Preparation) only
- Phase 8 (Reevaluation) only
Correct answer: Phase 4 (Desensitization), Phase 5 (Installation), and Phase 6 (Body Scan)
BLS is actively applied during Phases 4, 5, and 6 to facilitate memory processing, positive cognition installation, and body scan resolution.
Question 4: What term describes the number of back-and-forth movements completed in one BLS sequence?
- BLS duration
- BLS set (Correct answer)
- BLS cycle
- BLS rhythm
Correct answer: BLS set
A 'set' in EMDR refers to one sequence of bilateral stimulation, typically consisting of 24–36 back-and-forth movements before the therapist checks in.
Question 5: Which of the following client presentations would MOST likely indicate a need to SLOW DOWN the speed of BLS?
- Client reports feeling emotionally numb and stuck
- Client is abreacting intensely and feeling overwhelmed (Correct answer)
- Client reports rapid positive associations
- Client has mild anxiety but stable affect
Correct answer: Client is abreacting intensely and feeling overwhelmed
When a client is abreacting or overwhelmed, slowing BLS speed can help regulate their nervous system and keep them within their window of tolerance.
Question 6: A client prefers auditory BLS but finds the standard alternating stereo tones distracting. Which accommodation is MOST appropriate?
- Insist on the standard tones as they are clinically required
- Offer tactile BLS as an alternative (Correct answer)
- Use monaural (single-ear) tones instead
- Stop using BLS for this client permanently
Correct answer: Offer tactile BLS as an alternative
If one BLS modality is not working well for a client, switching to another validated modality (such as tactile tapping) is the recommended clinical response.
Question 7: The theoretical mechanism by which bilateral stimulation facilitates trauma processing in EMDR is BEST described as:
- Classical conditioning of relaxation responses to traumatic memories
- Engaging dual attention that allows processing of distressing memories without overwhelming the client (Correct answer)
- Erasing traumatic memories from long-term storage
- Creating new explicit memories that replace traumatic ones
Correct answer: Engaging dual attention that allows processing of distressing memories without overwhelming the client
BLS is theorized to support dual attention—the client simultaneously attends to present-moment BLS and the traumatic memory, facilitating adaptive processing without flooding.
EMDR Bilateral Stimulation Methods 3
What is the purpose of varying the speed of bilateral stimulation during an EMDR session?