Child Parts Work: Trauma Informed Stabilization Treatment (TIST)

You're angry about a colleague's serious boundary violation.

A part of you immediately says, Don't make such a big deal out of it.

Someone asks a favor. You have too much to do and want to say "no."

But you hear another part of you saying, Sure, I'd be happy to — while the resentment is already building.

You want closeness with your significant other.

Then a part of you braces and pulls away the moment they get too close.

Welcome to the committee of parts.

Trauma-Informed Stabilization Treatment (TIST), developed by Janina Fisher, PhD, helps us understand these seemingly contradictory reactions as parts of you carrying different experiences, worldviews, beliefs, body responses, and survival strategies that can take you over at the most inopportune times.

And then you blame yourself.

A "part" isn't another person living inside you.

It's useful to understand "parts" as compartmentalized older trauma-related states, or neural networks, that can run your life in some very uncomfortable and alienating ways.

One of the most important shifts in TIST happens right here.

Instead of:

I'm terrified to tell her I'm angry.

We shift to:

The part is terrified to tell her you're angry.

This little reframe is at the heart of TIST.

The adult you can remain present while also becoming curious about the part that's terrified.

Your parts aren't irrational.

They're operating with seriously outdated information.

A people-pleasing part learned that keeping everyone happy was necessary to preserve connection. Only now it's exhausting.

A shut-down part learned that emotionally disconnecting was the safest option when fighting back, escaping, or getting help wasn't possible. But now you yearn to feel alive inside.

These strategies are often carbon-dated to a much earlier time in your life.

The circumstances changed.

The strategy didn't get the memo.

So a disagreement can feel like abandonment. Anger can feel dangerous. Someone else's disappointment can create an almost irresistible need to fix things immediately.

Your adult self is perfectly capable of showing up to meet the moment.

The part doesn't know that yet.

This is where TIST becomes much more about getting interested and learning about the part through direct experience and conversation with it.

We get curious, ask the part, and wait for the response. It usually comes in some form.

What Are You Afraid Will Happen? What Are You Trying to Protect Me from? What Are You Worried Might Happen If You Stop Doing What You're Doing?

A conflict-avoidant part might essentially say:

If you tell her you're angry, she'll leave.

Instead of arguing with the part, we listen.

Of course you'd worry about that. You were so young when you learned this.

Thank you. I know you've been trying to protect me.

Notice if you receive a response. Often, the part relaxes.

We begin to understand what that young part needed but didn't receive at the time — perhaps protection, reassurance, understanding, validation, or simply someone who would take its fear seriously and offer comfort.

Without those experiences, the part found its own way to keep on keeping on.

We're not pretending the past was different.

We're giving the part a felt sense of a missing experience in real time.

The adult can communicate something new:

I'm here now.

I can speak up.

I can handle someone being unhappy with me.

If someone treats me badly, I can take care of myself.

You don't need to.

So that parts can get more evidence that this is a different situation, I sometimes ask a client to internally show a young part a picture of themselves now. Look around the living room or at the front door.

Look. This is life now.

There are choices now that weren't available then.

This takes time. I encourage regular check-ins so the adult and the parts develop a relationship. This builds the trust the parts need.

The parts learn:

You'll listen to me.

You'll take me seriously.

You'll protect us.

I don't have to take over to get your attention.

Over time, a part that's been standing guard for decades can begin to trust the adult enough to relax.

The word stabilization can make TIST sound as though it's only for people who are falling apart.

It isn't. We all have parts.

TIST grows in part from a phase-oriented trauma tradition associated with psychiatrist Judith Herman: developing enough safety and stability that we don't have to push prematurely into reprocessing old or traumatic memories. This is just one of the key foundations of TIST.

There's less need for a verbal history. The past is showing up right in front of us.

It may show up as a body that braces, a throat that closes, an overwhelming emotion, an urge to disappear, or the sudden feeling that you're much younger than your actual age.

TIST helps you hold both realities at once:

A part of me is terrified.

And:

I'm here. I'm an adult. My feet are on the floor. I can handle what's happening now.

This dual awareness creates more room for the adult to respond rather than be at the mercy of the part's survival strategy.

Parts aren't only carrying fear, shame, anger, or vigilance.

They may also carry playfulness, creativity, curiosity, humor, tenderness, spontaneity, determination, and joy.

The goal isn't to get rid of them.

They need a new job description.

Sensitivity to other people's feelings can become empathy without self-abandonment.

Vigilance can become relaxed discernment.

A fierce protector can remain available when you actually need protecting — without treating every disagreement like a five-alarm fire.

And a playful younger part that didn't get nearly enough airtime can finally get to explore and play.

When useful, I integrate TIST with Attachment-Focused EMDR and Sensorimotor Psychotherapy, particularly when memories, body-based responses, or older trauma-related patterns need additional ways of being worked with.

The goal is to become who you were meant to be, instead of who you had to become.

Your adult self can handle adult life and thrive.

And the parts that have been working overtime for decades?

They can relax until they are actually needed.

Reach out. Let's explore whether TIST might be a good fit for you.