Understanding PDA Behaviours - a Threat Response, not bad behaviour

Pathological Demand Avoidance (PDA) is a neurobiological profile seen in some autistic children. These children experience extreme threat when they feel pressured, controlled or expected to comply. This is not a choice or attitude issue. It is a fight-or-flight (autonomic) nervous system reaction to loss of autonomy.

Why PDA Behaviours Happen

When your child feels:

·       Told what to do

·       Corrected or disciplined

·       Judged or controlled

·       Observed or evaluated

·       Expected to behave “normally”

Their brain sends a danger signal.

This danger signal is neurological, not logical.

Their body reacts before their thinking brain can.

Some children collapse or shut down when they feel threatened.

PDA children often fight back, trying to overpower, control or dominate.

This behaviour helps them feel safer inside their body. 

What PDA Threat Responses Can Look Like

PDA Threat Response

How It May Present

What It Means

Control / Bossing

Making rules for others, telling adults what to do

“If I’m in charge, I can’t be hurt.”

Aggression / Intimidation

Taunting, cruel words, threatening gestures, loud voice

“I feel unsafe. Power helps me survive.”

Performative Behaviour

Acting like a guard, soldier, prisoner, adult, villain

“People listen to powerful characters; they don’t scare me.”

Manipulation or Provoking

Testing your reactions,

pushing buttons

“If I can predict your reaction, I’m safe.”

Avoidance / Refusal

Ignoring, running away, shutting down

“My body cannot meet demands without panicking.”

These are protective behaviours, not intentional disrespect or maliciousness.

How Adults Can Help PDA Children Feel Safe

Do not demand compliance in the moment

Your child’s brain cannot comply when it feels threatened.

Try to use invitations instead of instructions: -

Instead of: “Stop doing that,” try: “Can your brain do something fun with me instead?”

·       Stay neutral, low emotion, low reaction

·       Avoid direct eye contact

·       No lectures

·       No raised voices

·       No long explanations – explain simply and gently

·       Focus on co-regulation, not correction (slow your breathing & heart rate, lower your gaze)

·       Calm body + calm face + calm voice

·       Step away if needed

·       Reduce attention, not love

·       Build collaboration instead of control

·       Offer choices (one at a time)

·       Share decisions

·       Ask them for ideas

What Does NOT Work with PDA Children

remember your child is doing the best they can

·       Yelling or raising your voice

·       Taking behaviours personally

·       Demanding apologies

·       Insisting on “respect”

·       Punishments or consequences

·       Trying to reason during escalation

·       Expecting them to “just stop”

·       Comparing them with neurotypical children

These responses increase perceived threat, which intensifies the behaviour.

PDA Is about safety, not obedience

PDA children do not avoid tasks because they are lazy or defiant.

They avoid tasks because they cannot neurologically tolerate feeling controlled.

Their behaviour will improve only when their nervous system feels safe.

When adults:

·       Stay regulated

·       Use playful invitation

·       Reduce power struggles

·       Respond with low emotion 

your PDA child will feel safer, and safe children cooperate more naturally.

Key Message for Families

A PDA child is not trying to dominate the home. They are trying to survive it.

Adults do not need to control the child.

They need to control the temperature of the room — the emotional climate.

Keeping the adult nervous system calm is your most effective intervention. So, breathe deeply and slowly.

ÓNelleFrances 2024