Bilateral Stimulation Used in studied protocols

Follow a target with sound

Combined bilateral stimulation for clinician-led sessions.

This is a reference tool, not a replacement for EMDR therapy. EMDR must be delivered by a trained clinician. If you are using these tools outside of therapy and become distressed, stop, ground yourself, and contact a mental health professional.

Before you start

Photosensitive epilepsy warning: this tool uses sustained horizontal motion.
Headphones required for audio component.
Not recommended for home use without clinician supervision.

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Settings

Preset

Preset name

Motion

Speed (Hz) 1.0 Passes / set 24 Continuous Movement path Pacing Fade side to side instead of moving

Keeps the left-right alternation without sustained motion.

Appearance

Color theme Target Size 48 Glow Trail Target color Background

Sound

Sound Pitch (Hz) 440 Left-right separation 85% Sound style Volume 30% Chime at the end of a set

Background sound Background level Base pitch (Hz) 200 Offset (Hz) 4.0

Headphones needed for left-right separation.

Settings saved on this device

0 / 24

This tool uses motion by design. The settings panel can switch it to a side-to-side fade instead.

Clinical sources

Combined Visual + Audio BLS

What the evidence supports

Research on a complete therapy does not establish that an isolated activity or this website produces the same outcomes. EMDR includes assessment, preparation, memory work and follow-up with a trained clinician. Its mechanisms are still being studied.

These pages compile published sources. An independent clinical review of this site and a trial of its tools are not documented here. Labels describe the technique’s use context; they are not an efficacy certification.

VA: EMDR evidence and limitations · NICE: recommendations by age and context

Shapiro, F. (2018). Eye Movement Desensitization and Reprocessing (EMDR) Therapy: Basic Principles, Protocols, and Procedures, 3rd ed. Guilford Press.

How to use this activity and clinical context

What this is

Combines the moving visual dot and alternating stereo tones into a single synchronized experience. Audio can be toggled on or off without restarting the visual.

When to use it

When multi-modal BLS is desirable — some clients process more effectively with dual channels.
As a fallback if the client starts to dissociate on single-channel BLS; the extra sensory input can help maintain dual attention.

Clinical notes

Visual and audio are driven from the same internal clock — when the dot hits the left edge, a left-panned tone plays; right edge, right tone. Audio can be muted on the fly via the checkbox.