Safe and Sound Protocol

Safe and Sound Protocol in Marin County & Throughout California

What Is the Safe and Sound Protocol?

The Safe and Sound Protocol (SSP) is a therapeutic listening intervention developed by Stephen Porges and grounded in Polyvagal Theory.

It uses specially filtered music delivered through headphones to support nervous system regulation. The music emphasizes frequencies that resemble the human voice — cues our nervous system naturally associates with safety and connection.

Rather than working through insight alone, SSP works from the bottom up — helping the body shift out of chronic fight, flight, or shutdown states so that emotional and relational work becomes more accessible.

SSP is delivered through a trained provider and is individualized based on your nervous system capacity and goals.

How the Safe and Sound Protocol Works

The nervous system is constantly scanning for cues of safety or threat. When it detects threat — even subtly — we may experience:

Anxiety or hypervigilance
Emotional overwhelm
Shutdown or dissociation
Social withdrawal
Sound sensitivity

The filtered music used in SSP stimulates neural pathways involved in the vagus nerve and social engagement system. Over time, this can support:

Greater physiological calm
Improved emotional regulation
Increased capacity for connection
Reduced sensory reactivity

The full protocol includes approximately five hours of listening, typically completed gradually and at a pace tailored to you.

This is not a “push through it” intervention. Slower is often better.

What SSP Can Help With

The Safe and Sound Protocol may support individuals experiencing:

Anxiety and chronic stress
Trauma-related nervous system patterns
Emotional reactivity or dysregulation
Dissociation or shutdown patterns
Sound sensitivity
Difficulty feeling safe in relationships
Sensory processing differences

SSP is often integrated with:

Somatic Experiencing
Trauma-informed psychotherapy
Attachment-focused therapy
EMDR
Nervous system regulation work

It can make therapy feel more accessible because the body is no longer working so hard to defend.

What to Know Before Beginning SSP

It’s important to approach SSP with clarity and support.

SSP Is Not a Quick Fix

While some people notice shifts quickly, SSP works best as part of an ongoing therapeutic relationship. It supports regulation — it doesn’t replace therapy.

Pace Matters

Listening too quickly or without proper support can feel overwhelming. We move gradually and collaboratively.

Sensations May Shift

As the nervous system reorganizes, you may notice:

Changes in emotional intensity
Increased awareness of sensations
Shifts in relational patterns

These experiences are supported and integrated in session.

Support Systems Are Important

Because SSP can shift how you experience safety and connection, having therapeutic support during the process is essential.

What Sessions Look Like

Listening may happen in session or remotely (telehealth available throughout California).
Sessions are structured around pacing, nervous system monitoring, and integration.
We adjust based on your responses — not a rigid timeline.

Some clients listen in small increments. Some take breaks. Regulation always comes first.

Is SSP Right for You?

SSP may be a good fit if you:

Feel stuck in anxiety or shutdown patterns
Have done talk therapy but still feel reactive in your body
Struggle with sound sensitivity
Want to strengthen nervous system resilience
Are looking for a gentle, body-based support

We can discuss whether this approach aligns with your goals during an initial session.

Phone: (415) 453-1402
Email: drkatebrennan@gmail.com
Schedule Appointment

FAQ’s

Here’s some answers to the frequently asked questions

Is the Safe and Sound Protocol evidence-based?

SSP is grounded in Polyvagal Theory and auditory neuroscience. Research is ongoing, with clinical studies suggesting improvements in emotional regulation, social engagement, and sensory processing. It is considered a therapeutic tool rather than a standalone medical treatment.

Can SSP make symptoms worse?

Some individuals may experience temporary increases in sensation or emotion as the nervous system adjusts. This is why pacing and provider guidance are essential. We move slowly and monitor carefully.

How long does SSP take?

The full protocol includes approximately five hours of listening. This may be completed over weeks or longer depending on your system’s capacity.

Do you offer SSP remotely?

Yes. I offer SSP both in Marin County and via telehealth throughout California.

Is SSP safe for trauma survivors?

When delivered by a trained provider and paced appropriately, SSP can support trauma recovery by increasing nervous system regulation. It is always integrated thoughtfully within a trauma-informed framework.