Sensory Therapy Place
Rethinking Sensory Diets: 2025 Autism Society of Maine Presentation

Rethinking Sensory Diets: 2025 Autism Society of Maine Presentation

by Sensory Therapy Place

Pediatric OT · Neurodevelopment · Sensory Diet

Rethinking Sensory Diet:
Why Your Child's Nervous System
Comes First

If sensory activities aren't working, the problem may not be the activities — it may be the order in which you're approaching the brain.

By Earl Mamaril, MS OTR/L  ·  Sensory Therapy Place, Brewer, ME  ·  November 2025

Every week, I talk to parents who are doing all the right things — the sensory bins, the weighted blankets, the trampoline breaks — and their child is still melting down, shutting down, or spinning out. The sensory diet isn't working. And the question they always ask me is: why?

The answer almost always points to the same thing: we started on the wrong floor of the building.

When I gave this presentation in November 2025 — inspired by my training with Dr. Svetlana Masgutova, Dr. Carla Hannaford, Moira Dempsey, and Brigit Viksnins through Alchemical Alignment's Somatic Reflex Training — my goal was to reframe what sensory diet actually means. Not as a checklist of sensory activities, but as a nervous-system-first, bottom-up approach to regulation and development.

This post is for every parent who has been handed a sensory diet home program and felt like something was still missing. You were right — something was.


The Real Problem: Dysregulation Is at an All-Time High

We are raising children in a world that their nervous systems were never designed for. Artificial food dyes, ultra-processed foods comprising nearly 70% of kids' caloric intake, excessive screen time, "container culture" that limits free movement in infancy, chronic low-grade stress at home and in school — these aren't fringe concerns. They are nervous system threats, and they compound daily.

Parents are watching their children struggle with emotional explosions, sensory meltdowns, attention collapse, anxiety that seems wired in, and bodies that simply won't regulate. They are told it's behavior. They are told to try consequences. They are told to practice more sensory breaks.

The inconvenient truth: A dysregulated nervous system cannot respond to behavioral strategies the way a regulated one can. You cannot reason with a brainstem in survival mode. Regulation has to come first — and regulation requires understanding the nervous system, not just the sensory system.

Parents today are not looking for more activities. They are looking for root causes. And that is exactly where we need to start.


Look at the Nervous System Before the Sensory System

Most conversations about sensory processing begin with the eight sensory systems. And they're important — we'll get there. But the eight sensory systems don't operate in isolation. They are governed by the nervous system, and specifically by whether the nervous system perceives the environment as safe or threatening.

Before you choose a sensory activity for your child, you need to ask five foundational questions:

These questions form your decision tree — and they must come before a behavior plan, before a sensory diet, before any intervention at all.

The Map of Seven Realms: Knowing Where Your Child Lives

Inspired by Brigit Viksnins and Heather Gordon's Map of Seven Realms, nervous system states can be understood on a spectrum. At the center is Optimal Regulation — calm, focused, socially engaged, learning-ready (Realms 3–4). On one end is Hypoarousal: the "nobody's home" state of shutdown, low tone, and withdrawal. On the other end is Fight/Flight: explosive, panicked, and out of body control.

A child in Realms 6–7 (chronic sympathetic activation) cannot access a sensory diet the way it's intended. Their brainstem is running the show. Until we address what's keeping them there, sensory tools are temporary management — not transformation.

The Autonomic Nervous System: Safety vs. Threat

The parasympathetic nervous system — the "rest and digest" branch — constricts pupils, slows heartbeat, stimulates digestion, and creates the physiological conditions for learning and growth. The sympathetic nervous system does the opposite: pupils dilate, heart rate increases, digestion shuts down, and the body mobilizes for survival.

When a child is chronically sympathetic — due to environmental stressors, retained primitive reflexes, or early life trauma — sensory activities are being layered on top of an already-activated stress system. The foundation is cracked, and we keep adding furniture to the house.


Primitive Reflexes: The Hidden Driver of Dysregulation

Primitive reflexes are automatic, survival-based movement patterns that emerge in utero and in the first months of life. They are the brainstem's first language. Under normal developmental circumstances, these reflexes integrate — meaning they get "retired" by higher brain centers — typically between birth and 12 months, as voluntary movement, postural control, and cortical function come online.

But when integration doesn't happen — due to birth trauma, chronic early stress, limited movement opportunities, or environmental barriers — these reflexes remain active in the body. And an active primitive reflex is a nervous system stuck in survival mode.

Survival Reflex
Moro Reflex

The startle-and-embrace reflex of infancy. When retained, it drives fight/flight activation, adrenal and immune dysregulation, emotional reactivity, and hypersensitivity to sensory input. Many children diagnosed with anxiety or sensory over-responsivity have a retained Moro at the root.

Survival Reflex
Fear Paralysis Reflex

A freeze response that, when retained, keeps the child in chronic shutdown. It disrupts the sense of inner safety, drives stress hormone dysregulation, and limits sensory modulation. Children who "shut down" or go blank under pressure often have a retained Fear Paralysis Reflex.

Postural Reflex
TLR (Tonic Labyrinthine)

Foundational to vestibular processing and muscle tone. When retained, it disrupts balance, postural control, and spatial perception — creating a body that can't feel safe in space.

Movement Reflex
ATNR

Cross-lateral integration reflex. When retained, it interferes with midline crossing, spelling, reading, math, and horizontal eye tracking — the building blocks of academic learning.

The work of Dr. Svetlana Masgutova through MNRI (Masgutova Neurosensorimotor Reflex Integration) has shown us that non-invasive reflex integration exercises can restore dysfunctional sensorimotor patterns disrupted by trauma, stress, or birth complications. Her clinical outcomes — including measurable gains in motor planning, speech, and behavior in 80% of autistic children in her studies — point to what becomes possible when we address the root of the brainstem, not just the behavior on the surface.

Moira Dempsey, co-founder of Rhythmic Movement Training International, identified five key reasons primitive reflexes fail to integrate: lack of early movement, birth trauma, early life stress, limited sensory input, and environmental barriers — including what she calls "container culture," where infants spend too much time in car seats, bouncers, and walkers instead of free floor movement. Each of these creates a brainstem that never gets the movement feedback it needs to wire properly.


So What Exactly Is a Sensory Diet? (And What It Actually Does)

The term sensory diet was coined by occupational therapist Patricia Wilbarger to describe a personalized, scheduled plan of sensory activities designed to help a child achieve and maintain an optimal arousal state for attention, learning, and behavior regulation.

A sensory diet is not a collection of fun sensory activities. It is a clinically designed, individualized program matched to a child's specific sensory processing profile — the particular way their nervous system registers, organizes, and responds to sensory input across all eight sensory systems.

The Eight Sensory Systems

👁️VisualSight & tracking
👂AuditorySound & listening
👃OlfactorySmell & memory
👅GustatoryTaste & oral motor
🤲TactileTouch & texture
🌀VestibularBalance & movement
💪ProprioceptionBody position
❤️InteroceptionInternal signals

The goal of a sensory diet is to match the sensory tool to the nervous system state — not to the behavior. A child who is crashing into everything isn't "bad." They are seeking proprioceptive input because their brainstem is under-registering body position and trying to get information. A child who covers their ears at moderate noise isn't oversensitive by choice. Their auditory system is under a threat state, and their brainstem is filtering sound as danger.

The core principle of effective sensory diet: A sensory diet isn't random input — it's targeted regulation. Match the sensory tool to the nervous system state, not the behavior.


Traditional vs. Neurodevelopmental Sensory Diet: What's the Difference?

Dimension Traditional Sensory Diet Neurodevelopmental Sensory Diet
Core Purpose Manage sensory input for behavioral regulation Regulate arousal AND facilitate brain development through reflex integration and bonding
Foundation Sensory Integration Theory (A. Jean Ayres) Neurodevelopmental theory + humanistic psychology; integrates Maslow, Rogers, and primitive reflex maturation
Movement Focus Gross motor for sensory effects (trampolines, swings, animal walks) Neurodevelopmental movement patterns mimicking infant milestones; targets reflexes and developmental sequences
Neurochemistry Implicit — neurotransmitter changes are a means to an end Explicit — intentionally boosts GABA, dopamine, serotonin, and oxytocin; creates optimal neurochemical conditions for growth
Bonding Not a primary component Foundational — co-regulation, safety, and connection are primary therapeutic tools; hugging, singing, and eye contact release oxytocin and lower cortisol

Both approaches have value. But if we're asking whether we can get to lasting change — to genuine nervous system transformation, not just in-the-moment regulation — the neurodevelopmental framework addresses what traditional sensory diet was never designed to touch: the brainstem foundation.


What a Bottom-Up Sensory Diet Actually Looks Like

Dr. Carla Hannaford taught us that the body-mind system learns through movement and sensory experience. Dr. Robert Melillo showed us that disconnected brain hemispheres are at the root of most learning and behavioral issues. The neurodevelopmental hierarchy is clear: brainstem first, then midbrain, then cortex. You cannot teach a child to read if they're in survival mode. You cannot access executive function from a dysregulated brainstem.

This is the bottom-up approach. And it changes everything about how we sequence intervention.

The Bottom-Up Framework

Step 1 · Foundation First

Establish Safety in the Nervous System

Before any activity: assess nervous system state. Is the child in Realm 3–4 or Realm 6–7? Co-regulation, felt safety, and attachment must come before sensory tools. This is the Harlow lesson — comfort and security before everything else.

Step 2 · Build Bottom-Up

Address Retained Primitive Reflexes

Rhythmic movement patterns, reflex integration exercises, and developmental movement sequences (rolling, crawling, cross-lateral patterns) begin to mature the brainstem and unlock the midbrain. This is where Masgutova, Dempsey, and Hannaford's work lives.

Step 3 · Regulate Before You Educate

Apply the Targeted Sensory Diet

Now — from a regulated brainstem — proprioceptive input, vestibular movement, heavy work, deep pressure, and breath-based activities can be matched to the child's specific sensory profile for sustainable arousal regulation.

Regulate Before You Educate

This phrase captures the entire framework. If a child is in sympathetic overdrive — if the Moro reflex is firing, if the HPA axis is flooded with cortisol, if the vagus nerve isn't providing the brake signal to calm the heart — they cannot learn. They cannot integrate sensory input meaningfully. And they certainly cannot respond to behavioral strategies.

The Heart-Brain Axis teaches us that the heart sends critical feedback to the brain via the vagus nerve, hormonal pathways, pulse waves, and even electromagnetic field — influencing emotion and cognition. When a child is in a state of chaos (stress, anger, fear), that heart signal inhibits clarity. When they are in coherence (care, connection, safety), it enhances focus. This is why co-regulation — a regulated caregiver physically present with a dysregulated child — is one of the most powerful sensory interventions in existence.

Movement and Nature as Medicine

The best sensory diet isn't always a clinic program. Free outdoor movement — barefoot walking on uneven ground, nature exploration, family walks — provides vestibular, proprioceptive, tactile, visual, and olfactory input simultaneously, in a context the nervous system evolved to process. Antioxidant-rich whole foods support neurochemical balance. Eliminating artificial food dyes and ultra-processed foods reduces inflammatory burden on the developing brain.

The environmental audit is part of the sensory diet. It always has been.


In Closing: Start at the Foundation

The framework I presented in November 2025 — and that we apply every day at Sensory Therapy Place — can be distilled into five principles:

The parents I work with are not looking for another quick fix. They are looking for someone who can see the whole child — the brainstem and the behavior, the reflex and the regulation, the nervous system and the story it's trying to tell. That is the work we do at Sensory Therapy Place.

If this framework resonates with you — if you've been looking for someone who understands the root, not just the routine — I'd love to connect.

Ready to Find the Root?

Schedule a comprehensive sensory and neurodevelopmental assessment at Sensory Therapy Place in Brewer, Maine — or via telehealth from anywhere in the state.

Book an Evaluation →
E
Earl Mamaril, MS OTR/L

Founder of Sensory Therapy Place · Pediatric Occupational Therapist · This presentation was inspired from Dr. Carla Hannaford, Dr. Masgutova, Moira Dempsey, and Brigit Viksnins · Brewer, Maine

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