How to Test for Retained Primitive Reflexes at Home

You read through a symptom list late one night and your stomach dropped. The fidgeting. The meltdowns over a clothing tag. The reading that still feels like a fight in second grade. Your child checks half the boxes, maybe more.

Now you want to know if this is real before you spend money on an evaluation. You want to run a few checks yourself, tonight, at the kitchen table.

That is a reasonable instinct, and it is exactly what this guide is for. Below are four simple ways to test for retained primitive reflexes at home, what each one is looking for, and the honest limits of what a home check can and cannot tell you.

What can a home reflex check actually tell you?

A home reflex check can flag patterns worth looking into, but it cannot diagnose anything. That is the honest answer, and it is worth sitting with before you start.

Primitive reflexes are automatic movements that every baby is born with. They are present at birth to handle the basics of survival and early motor development, and they should fade during the first year of life as the nervous system matures. Some, like the rooting reflex that helps a newborn feed, quiet within months. Others give way as a baby builds head control during tummy time, then learns to roll and crawl. When one lingers past infancy, we call it a retained reflex. The reflex is still firing when it should have quieted down, and the child ends up working around it.

The checks below are a screening, not a diagnosis. A positive result is a reason to look closer, not a verdict. If several of these tests look positive, the useful next step is to sit down with someone who does this every day. Active Healing’s NeuroDevelopmental Movement program is built around evaluating exactly these patterns.

Here is some reassurance before you worry. Retained reflexes are common. In one study of thirty-five healthy preschool children, eighty-nine percent carried at least one retained primitive reflex at some level, with most showing only a mild trace. Retention is not rare, and it is not a moral failing. It is a piece of unfinished child development, and it is addressable.

If you have not read the plain-English rundown of what each reflex looks like day to day, our guide to the symptoms of retained primitive reflexes is a good companion to this one.

A few notes before you begin. Pick a calm moment, not the tail end of a hard day. Keep it playful, like a game, so your child stays relaxed. You are watching for a specific involuntary response, so go slowly and notice what the body does on its own. Grab a piece of paper to jot down what you see for each test.

How to test for the ATNR, the arm test

The asymmetric tonic neck reflex, or ATNR, is checked by turning the head slowly to one side and watching whether the arm on that side wants to straighten on its own. The ATNR is sometimes called the fencer reflex because of that posture.

Here is the check for a younger child. Have your child kneel on all fours, hands and knees on the floor, head in a neutral position. Slowly turn their head to look over one shoulder and hold it there for a few seconds. Then turn it to the other side.

Watch the arms. If the arm on the side the child is facing bends or the elbow buckles when the head turns, that is a sign the asymmetrical tonic neck reflex may still be active. A fully integrated ATNR lets the head turn without the arms reacting at all.

An older child or an adult can do a standing version. Stand with arms held straight out in front, then slowly turn the head side to side. If the arms drift or bend as the head turns, note it. A retained ATNR often shows up as messy handwriting, losing your place while reading, and trouble crossing the midline of the body.

The spinal Galant back-stroke test

The spinal Galant reflex is checked by stroking down one side of the spine and watching whether the hip swings toward that side. It is one of the simplest checks to run at home.

Have your child kneel on all fours or stand and lean forward slightly so the back is exposed. Using one finger, stroke gently down alongside the spine, about an inch out from the bones, from the lower ribs to the top of the hip. Do one side, then the other.

Watch the hips. If the hip hitches or swings toward the side you stroked, the spinal Galant reflex may be retained. A retained spinal Galant is often the hidden reason a child cannot sit still in a chair, hates waistbands and tags, and still wets the bed past the age you expected it to stop.

The Moro standing test

The Moro reflex is the startle response, and you can check it by having your child close their eyes and tip gently backward to see whether the body overreacts. The Moro is a baby’s built-in alarm system, and it should settle into a calmer adult startle within the first months of life.

Stand behind your child so you can catch them. Have them stand tall with eyes closed and arms crossed over the chest. Ask them to lean back into your hands, and support them the whole way. You are watching their reaction to that small loss of balance.

If the arms fly outward, the breath catches, or the whole body tenses hard, a retained Moro may be in play. A child carrying a retained Moro reflex often lives in a low-grade fight-or-flight state. They startle easily, struggle with loud rooms and bright light, and can swing from calm to meltdown fast. Sensory sensitivity and anxiety often travel with it.

The palmar grasp check

The palmar grasp reflex is checked by stroking across the palm and watching whether the fingers curl in on their own. This is the reflex that makes a newborn wrap a tiny hand around your finger, and the palmar reflex should fade by around six months.

Have your child rest a hand palm up and relaxed. Lightly stroke across the palm from the base of the fingers toward the wrist. Watch the fingers.

If the fingers twitch or curl inward without the child meaning to, the palmar grasp reflex may still be active. A retained palmar reflex tends to show up as an awkward pencil grip, poor manual dexterity, and a mouth that moves along when the hand is writing or cutting. Fine motor skills feel harder than they should.

What does a positive result mean?

A positive result means a reflex looks like it may not have fully integrated, nothing more and nothing less. It is a flag, not a diagnosis. Home reflex testing is a starting point that tells you whether a professional look is worth your time and money.

Use a simple checklist. For each of the four tests, mark it positive, unclear, or clear. Then step back and read the pattern:

• Zero positives: nothing obvious surfaced today, though a single sitting can miss things.
• One positive: worth watching, and worth a mention if you are already seeing a provider.
• Two or more positives: a pattern is showing, and an evaluation is the sensible next move.

Keep two things in mind. First, one child can carry several retained reflexes at once, which is normal, so do not be alarmed if more than one test lights up. There are others a home check does not cover well, including the symmetrical tonic neck reflex (STNR) behind desk slumping and the tonic labyrinthine reflex (TLR) tied to posture, balance, and muscle tone. Retained reflexes often ride along with sensory processing struggles, which is why the picture can feel so tangled. Second, retained reflexes are linked to challenges like ADHD and autism spectrum symptoms in the research, but linked is the key word.

The evidence is associative, not causal. A 2023 meta-analysis in Frontiers in Psychiatry found a moderate correlation between ADHD and both the ATNR and STNR, and the authors were careful to say the data cannot show cause. A separate review connects retained reflexes to autism spectrum development while framing them as a sign of developmental delay rather than a cause of it. A positive home test does not mean your child has any condition. It means one of the building blocks of movement may need attention.

If your checklist is lighting up, this is the kind of thing a NeuroDevelopmental Movement program is designed to look at.

What is NeuroDevelopmental Movement? NeuroDevelopmental Movement (NDM) is a gentle, movement-based program that guides the brain back through the developmental movement patterns it may have missed the first time around. Active Healing in Danvers, MA has used it for more than 30 years to support children and adults working through developmental and neurological challenges. Learn how NDM works.

Your next step: a professional evaluation

A professional evaluation takes your home results and turns them into a clear picture. Where a kitchen-table test is a quick screen, a trained practitioner assesses the full set of reflexes, scores how strongly each one is retained, and connects the pattern to what you are seeing at home and school.

Reflex integration work is offered by several kinds of providers, including occupational therapy practitioners and developmental movement programs. What they share is a movement-based approach. Rather than drilling a child on the skill they struggle with, the work uses slow, repeated movement patterns to give the nervous system another chance to finish integrating the reflex. It is patient, gentle, and built around the individual child.

At Active Healing, an evaluation starts with a conversation and a full reflex screen, then a plan you can actually follow. Bring the notes from your four tests. They are genuinely useful. They tell us what you have already noticed and where to look first. Thirty years of doing this work with children and adults has taught us that a parent’s observations at home are often the best clue we have.

We will also be straight with you. If reflex integration is a fit, we will explain what it looks like week to week. If we think another kind of support would serve your child better, we will tell you that too.

Ready to make sense of what you found?

If you ran these tests tonight and something lit up, you do not have to figure out the next part alone. Bring your checklist to a consultation and we will walk through what the results suggest and whether we can help.

Reach out and we will tell you honestly whether an evaluation makes sense for your family. Get in touch with Active Healing in Danvers, and we will take it from there.