Knowledge hub
Evidence-informed reference material on bilateral stimulation and EMDR.
Concise, clinician-facing articles on the topics practitioners ask about most — from what BLS is to how to run remote EMDR to the mechanism of working memory.
25 articles · reviewed by the BilateralSync clinical team.
Bilateral Stimulation
What is Bilateral Stimulation?
Bilateral stimulation (BLS) is alternating left–right sensory input used in EMDR therapy. Learn what it is, how it works and how clinicians use it.
Visual Bilateral Stimulation
Visual bilateral stimulation is the classical BLS modality in EMDR — a moving target the client tracks with their eyes. Learn how it is used and configured.
Auditory Bilateral Stimulation
Auditory bilateral stimulation uses tones alternating between the left and right ear. Learn how stereo BLS is used in EMDR and how to configure it online.
Tactile Bilateral Stimulation
Tactile bilateral stimulation delivers alternating physical sensations — taps, buzzers or self-tapping — during EMDR reprocessing.
Bilateral Stimulation Patterns
An overview of common bilateral stimulation patterns used in EMDR — horizontal, infinity, circular and pendulum — and when clinicians choose each.
Horizontal Eye Movements
Horizontal eye movements are the classical bilateral stimulation modality in EMDR. Learn why they are the default and how to configure them online.
The Infinity Pattern
The infinity (lemniscate) pattern moves the visual target along a figure-eight path. Learn why clinicians use it and how it compares to horizontal BLS.
The Pendulum Pattern
The pendulum pattern delivers gentle, wave-like bilateral stimulation often used for grounding, resource installation and closure.
Bilateral Stimulation Music
How bilateral stimulation music and stereo-panned tones work in EMDR. Evidence, use cases and how to deliver auditory BLS reliably online.
Theory & Research
How Bilateral Stimulation Works
How does bilateral stimulation work in EMDR? A clear overview of working-memory theory, orienting response and current evidence for the mechanism of BLS.
The Adaptive Information Processing Model
The AIP model is EMDR's theoretical foundation. It explains how memories are stored, why some become 'stuck', and how bilateral stimulation supports processing.
EMDR 2.0
EMDR 2.0 is a working-memory-focused evolution of EMDR developed by Ad de Jongh and Suzy Matthijssen that intensifies dual-attention taxation.
Working Memory Theory of EMDR
The working-memory theory is the leading contemporary explanation for how bilateral stimulation contributes to memory reprocessing in EMDR.
EMDR Fundamentals
What is EMDR Therapy?
EMDR is an eight-phase psychotherapy for trauma developed by Francine Shapiro. Learn what EMDR is, how it works and what it treats.
EMDR for PTSD
EMDR is a first-line evidence-based treatment for PTSD. Learn what the guidelines say, what the outcomes look like and how the protocol is applied.
EMDR for Anxiety
EMDR is increasingly applied to anxiety disorders and phobias. Learn what the evidence shows and how clinicians adapt the protocol for anxiety presentations.
Online & Telehealth
Can EMDR Be Done Online?
Yes — EMDR can be delivered effectively online. Learn what the evidence says, what setup you need and how remote EMDR compares to in-person work.
Online Bilateral Stimulation
Online bilateral stimulation delivers visual, auditory and combined BLS through a browser so therapists can run remote EMDR alongside any video platform.
Remote EMDR Therapy
Remote EMDR is the delivery of the standard EMDR protocol via video. A practical guide to setup, safety, protocol fidelity and BLS delivery online.
Telehealth for Psychologists
A practical guide to telehealth for psychologists — legal frameworks, video platforms, session structure, informed consent and specialized tools like BLS.
Online Therapy Tools
The essential online therapy tools clinicians need in 2026 — video, scheduling, notes, and specialized modality tools such as bilateral stimulation.
Clinical Practice
EMDR Phase 4: Desensitization
Phase 4 is where bilateral stimulation drives desensitization of the target memory. Learn what happens step-by-step and how to run Phase 4 online.
EMDR Best Practices
EMDR best practices for protocol fidelity, client safety, dissociation management, documentation and self-care — the practical clinical baseline.
Preparing Clients for Online EMDR
A step-by-step guide to preparing clients for online EMDR — informed consent, technical setup, safety planning and grounding resources.