When Your Body Won’t Let You Act
The neuroscience of shock — and why parents freeze when their children need them most
I’m Hayley Jones. I’m a psychologist with twenty years of clinical experience in trauma. And I’m a mother who didn’t act fast enough when my son needed me to.
I’m not here as an expert. I’m here as someone who has been in the waiting room, who has felt what I’m about to describe, and who wants you to understand what was actually happening in my nervous system — and possibly in yours — before you judge yourself, or anyone else, for freezing.
Because here’s what nobody tells you. When a parent sees signs that their child is being harmed and doesn’t act immediately, we reach for the social explanations. Denial. Bystander effect. Coercion. Uncertainty. Cultural silence. These are real. But they’re incomplete. Below the level of thought, below social conditioning, there is a more ancient and more stubborn reason why a person who loves their child can be rendered biologically incapable of acting on that love.
The answer is in the brainstem. And new research into a therapeutic approach called Deep Brain Reorienting (DBR), developed by Scottish psychiatrist Dr. Frank Corrigan and studied extensively by trauma researcher Dr. Ruth Lanius, is starting to show us exactly why.
The brain that fires before you think
Most of us were educated to privilege the cortex. The thinking, reasoning, deciding brain. So when we fail to protect our children, we assume the failure happened there. A failure of will. Of judgement. Of love, even.
But DBR points us somewhere older and deeper: the survival brain. The brainstem and midbrain, which operate entirely below conscious awareness. This isn’t the brain that weighs options or reflects on consequences. This is the brain that simply responds. According to Lanius, this is where shock, defensive responses, and raw emotion occur. Where all sensations first enter. It predates language. It predates deliberate choice. And it has a profound effect on everything above it, including the amygdala, which governs emotional learning.
When a threat appears, the survival brain doesn’t wait for the cortex to catch up.
It fires first.
The half-second before you know what’s happening
Here’s something that stopped me cold when I first read it. Before you consciously register a threat, your body has already begun to respond.
The superior colliculus, a structure in the midbrain, detects a threatening stimulus and immediately produces what DBR calls an orienting tension in the muscles of the head and neck. This tension exists before you’ve turned your head, before you’ve formed a thought, before you’ve felt afraid. Animal studies confirm it. The orienting tension appears in the suboccipital muscles at the base of the skull before any voluntary movement occurs.
What follows rapidly is the shock response: a jolt through the nervous system, originating in the locus coeruleus, the brain’s major noradrenaline hub. Then comes raw emotion, from the periaqueductal gray, which is responsible for both active and passive defensive responses, and what Corrigan names aloneness pain.
The sequence is: orient, then shock, then affect.
And here is the part that matters for understanding parental immobility. If the shock isn’t processed, it doesn’t dissolve. It amplifies everything that comes after.
Why you can’t think straight when your body has been jolted
The DBR model makes a claim that is both neurobiologically grounded and, frankly, devastating for anyone who has ever asked themselves why they didn’t just act: unprocessed shock amplifies emotional pain and raw affect.
When a parent encounters evidence of abuse, a bruise explained away, a disclosure swiftly retracted, a child who flinches at the wrong moment, the shock of that encounter doesn’t pass. It lodges. Corrigan describes it plainly: people can work for years on the grief and pain of a traumatic experience, but if the initial shock has never been resolved, if that first bolt of neural electricity was never given space to dissipate, the deeper processing can’t complete. The grief won’t move.
Now imagine you’re the parent who suspects their partner is abusing their child. The first time you see the sign, the injury, the behaviour change, the thing your child said that you told yourself you misheard, there is a shock response. It’s involuntary. It’s instantaneous.
And if that shock isn’t metabolised, because the context is unsafe, because denial is necessary for survival, because you’re yourself traumatised, it doesn’t go away. The next shock arrives on top of unprocessed shock. And the next. Each one amplified.
The result isn’t indifference. It’s a nervous system so overwhelmed by accumulated, unprocessed shock that action becomes neurologically impaired. The person isn’t choosing not to act. They’re locked in a brainstem-level response that has overwhelmed their capacity for deliberate agency.
The body without ground
To understand why people freeze rather than move, we need to understand what trauma does to the sense of self, specifically to what DBR calls the where-self.
Traumatised people frequently don’t know where they are in space. They’re clumsy. They bump into things. They float. This isn’t metaphor. It reflects measurable disruption to the vestibular system, the balance system, which in trauma becomes disconnected from its pathways through the brain. Without it functioning properly, we lose what Lanius calls gravitational security. The primal sense of being held by the earth. Of having a safe place to stand.
Now ask yourself this. If a parent has their own trauma history, if they were abused or neglected as a child, their vestibular system may have been impaired long before their own child arrived. They may never have had a reliable centre of balance. A felt sense of being firmly held by the ground.
Without that, it becomes very difficult not only to defend yourself, but to connect with others. You can’t launch a campaign of protection from a floating place. You can’t make a clear, decisive, terrifying choice when your nervous system has no ground to push off from.
The parent who doesn’t act is often a person who has never, neurologically, felt safe enough to stand.
I know this from the inside.
I’m a psychologist. Twenty years of training in trauma, EMDR, Schema Therapy, the neurobiology of abuse. I’ve sat across from survivors and helped them make sense of why they didn’t act sooner, why they froze, why they needed more before they could believe what they already knew.
And then it happened to my son. And I became the case study.
The first signs were things I noticed but didn’t yet have a name for. Behavioural shifts. The kind that, in someone else’s child, I would have clocked immediately. In my own, I found myself waiting. Waiting for my son to find more words. Waiting for a disclosure clear enough that no one could dismiss it. Waiting until I felt certain enough to be believed.
I understand now that this is precisely what Lanius’s neuroimaging data shows: the over-connected cortical circuit of a traumatised brain, firing separately from the gut-level input that was trying to reach it. I wasn’t in denial. I was stuck in a loop. Thinking without updating. Predicting alternative explanations because my nervous system couldn’t yet afford to update to the true present.
The aloneness pain Corrigan describes, the pre-verbal terror of being unsupported at the moment of most need, I felt it acutely. Not as a concept. As a physical thing, in my chest, in the back of my throat. The fear that if I acted before I had enough, I’d be alone in what I believed, and the system wouldn’t follow.
When the investigation concluded, that fear didn’t resolve. It deepened. The loops that followed, the rumination, the nights of going over the timeline again, they weren’t about the evidence. They were about the outcome. A nervous system that had lost its capacity to update, encountering a conclusion it couldn’t reconcile. Not obsession. Unprocessed shock, with nowhere to land.
I’m writing in part because I was a psychologist who had all the knowledge and still got stuck. If the neuroscience of shock can override twenty years of clinical training, it can happen to anyone.
The delay wasn’t a failure of love. It wasn’t a failure of intelligence.
It was a brainstem. Doing exactly what brainstems do.
The impossible prediction
The brain is a predictive organ. It constantly builds internal models of the world, maps of what’s likely to happen next, and updates those maps based on new sensory input. The cerebellum plays a central role in this, connecting to the thalamus and cortex to enable what Lanius calls vertical integration: the brain’s capacity to update itself to the present moment.
In PTSD, this updating circuit breaks down. The brain loses the connection that would signal: you’re safe now, this is different, you can update. Instead, it stays locked in lower-level loops, endlessly predicting threat, regardless of what the actual present moment contains.
Now consider the specific prediction error Lanius names in disorganised attachment. You expect a caregiver to provide safety. The caregiver harms you instead. This is the foundational wound in families where abuse occurs. The abuser is often also an attachment figure. Someone who, in the infant’s early nervous system, became encoded as a source of safety. When that person becomes threatening, the brain encounters a catastrophic prediction error. Not just a bad thing happening. An impossible thing. Safety and danger, love and harm, can’t simultaneously coexist.
And yet they do.
For the parent watching their own child be harmed by a partner who is also their attachment figure, the prediction error is of the same unbearable structure. The brain freezes not out of weakness but because it’s encountering something neurologically categorised as impossible to resolve.
The pain that has no words
Corrigan names something that cuts to the heart of why survivors and witnesses often stay silent: aloneness pain.
It’s a raw, aversive quality, not easily described in the language of grief or fear or shame, that arises when a person is left without adequate connection at a moment of overwhelming experience. In infancy it may arise before the capacity for verbal memory. There are no words for it because it predates language. It simply exists as an unbearable quality that can’t be articulated. Only felt.
The parent who suspects abuse and says nothing may be circling an aloneness pain so old and so deep that confronting the truth would require them to re-enter it. Because the truth, if faced, may mean: I’m alone with this. No one will help me. I won’t be believed. I’ll lose everything.
These aren’t irrational fears for people with histories of being unsupported. For many survivors of childhood neglect or abuse, the felt sense, written into the nervous system long before cognition arrives, is that there’s no rescue coming. That speaking doesn’t produce safety. It produces more danger.
So ask yourself honestly: is the parent who stays silent a person who has weighed the options and chosen wrong? Or are they a person whose nervous system learned, very early, that disclosing danger makes things worse?
That’s why information campaigns fail. That’s why a hotline number isn’t enough. The barrier isn’t informational. It’s neurobiological. It lives below the level where information can touch it.
One knee
In the 2013 film After Earth, Will Smith plays a decorated ranger guiding his son through hostile terrain after their spacecraft crashes. He’s injured. He can’t go with him. He can only transmit instructions and watch.
At the moment of peak threat, when fear has overtaken the boy’s capacity to function, the instruction isn’t tactical. It’s physiological.
Drop to one knee.
Not both knees. Not the floor. One knee, a posture of deliberate, controlled contact with the earth. I’m not collapsing. I’m grounding. And from the ground, I’ll stand back up.
It’s, in cinematic shorthand, exactly what DBR describes. The vestibular system requires contact with gravity to come back online. When shock hits, when the updating circuit goes dark, the fastest pathway back to functional capacity runs not through thinking but through the body’s relationship with the ground beneath it.
Military training has understood this for a long time. Soldiers aren’t handed a pamphlet at the moment of crisis. They’re drilled, before deployment, in physiological regulation under extreme stress. The protocol becomes automatic through repetition so that when the moment arrives, the body already knows what to do.
Parents discovering that their child has been harmed are experiencing a threat response of comparable neurological intensity. In some ways more acute, because the attachment system fires simultaneously with the shock response, creating a collision of love and horror and pre-verbal aloneness pain.
And we give them a hotline number.
One share. One parent. One child safer.
Legal and Privacy Concerns. Under Australian privacy laws and for personal safety, the author uses a pseudonym and AI-altered imagery. This work features literary and reflective essays expressing a subjective lived experience; it is not a legal or investigative record. All references to harm or conduct reflect the author’s honest opinion and personal interpretation of events. Regarding the matters referenced, police investigations resulted in a finding of no offence detected; this work is an exploration of the psychological interpretations and healing that follow such experiences. While the author is a psychologist, the views expressed here are personal and do not constitute professional psychological advice or a clinical opinion.
What a parent actually needs in those first moments
This doesn’t need to be complex. It needs to be memorable and designed for the moment when cognitive capacity is most compromised.
In the first moments of shock: one knee, ground contact, three slow exhales. The long slow out-breath that interrupts shock activation before it reaches the point of paralysis. You’re not solving anything yet. You’re bringing your nervous system back online so that you can.
In the first two hours: don’t make irreversible decisions. Don’t confront the alleged perpetrator. Don’t require yourself to have a perfectly articulated account before you speak to someone. Call one person who will believe you without requiring you to prove it first. Say the words out loud, even imperfectly. Externalising the experience interrupts the internal loop.
In the first 48 hours: get your child seen by a medical professional. Make the report. You don’t need certainty — that’s the system’s job, not yours. The fear of being wrong, of being alone in what you believe — that’s the aloneness pain talking. It’s ancient. It’s neurobiological. It’s not a reliable guide to whether you should act.
Ongoing: understand that the loops, the rumination, the inability to stop going over the timeline — that’s unprocessed shock. Not obsession. Not instability. A brain that has lost its updating circuit and is doing the only thing available to it. It needs the shock processed, not the thinking interrupted. This is where trauma-informed support, including approaches like DBR, becomes essential. Not optional. Essential.
What the data shows, and what we’re still not doing
The clinical trial data is striking. In a randomised controlled study of 60 participants with complex PTSD, many carrying significant dissociation, eight sessions of DBR produced substantial reductions across all four PTSD symptom clusters. Post-treatment, only 44% still met diagnostic criteria, compared to 90% in the waitlist group. At three-month follow-up that dropped to 37-38%.
Before DBR, neuroimaging showed reduced connectivity along the updating circuit from cerebellum to cortex, with excessive activity in lower-level brainstem loops. The brain was stuck. After DBR, those patterns reversed. The updating circuit came back online.
For parents in these situations, this matters enormously. The immobility isn’t permanent. It isn’t character. It isn’t lovelessness.
It’s a nervous system. And nervous systems can change.
So here’s what I want you to sit with. We teach children to stop, drop and roll. We teach adults hands-only CPR. We teach workplaces how to use a defibrillator. We do not teach parents what to do with their own nervous system in the thirty seconds after their world ends.
Why not?
The neuroscience is there. The framework is there. The only thing missing is the will to treat parental physiological response as something worth preparing for, rather than something to judge in retrospect.
If you are a parent reading this and something is pulling at you, something you’ve noticed and haven’t named yet, don’t wait until you can defend it to a sceptic. Get your child seen. Make the call. Contact Bravehearts on 1800 272 831, or take your child to your nearest children’s hospital for an assessment.
One knee. Ground contact. Then stand up.
That’s where it starts.
Legal and Privacy Concerns. Under Australian privacy laws and for personal safety, the author uses a pseudonym and AI-altered imagery. This work features literary and reflective essays expressing a subjective lived experience; it is not a legal or investigative record. All references to harm or conduct reflect the author’s honest opinion and personal interpretation of events. Regarding the matters referenced, police investigations resulted in a finding of no offence detected; this work is an exploration of the psychological interpretations and healing that follow such experiences. While the author is a psychologist, the views expressed here are personal and do not constitute professional psychological advice or a clinical opinion.
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