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BlogSensory Sensitivity

What’s in a Word? The Evolution and Future of Sensory Integration

🕑 3 minutes read
Posted June 5, 2026
By Tracy Stackhouse, MA, OTR/L
Reviewed by Unyte Clinical Team

This article was originally shared in an email newsletter from Developmental FX and was reposted with permission. Visit the Developmental FX website to learn more about this topic.

What’s in a Word?

Integration. Integrative.

Words matter.

Not simply because of their definitions, but because of the worlds they create around them.

In occupational therapy, few words have carried as much meaning, impact, debate, and evolution as the words sensory integration. For decades, these words have helped us understand children whose experiences, actions, emotions, and participation did not fit neatly into behavioral explanations alone.

Dr. A. Jean Ayres gave us a profound framework for understanding how the nervous system organizes sensation for use in everyday life.

Yet perhaps one of the unintended consequences of language is that over time, the word sensory has become commonplace and yet no longer carries the depth of meaning that Ayres originally intended.

Indeed, in many spaces, the word itself has become both ubiquitous and oddly diluted.

Today, “sensory” is everywhere: sensory bins, sensory corners, sensory breaks, sensory toys, sensory friendly, sensory rooms.

In some ways, this widespread language has opened important doors. Families, educators, and communities are more aware that nervous systems matter. More children are being understood with greater compassion and curiosity. The word sensory has helped many people move beyond shame and blame. That matters deeply. And yet, there is also a paradox.

As the word has become more common, it has often become less precise.

Too often, “sensory” has become shorthand for dysregulation, preference, stimulation, distraction, or behavior management rather than a thoughtful understanding of neurodevelopment, adaptive functioning, and nervous system organization. Interventions can become disconnected from the very neuroscience that should ground our clinical reasoning and treatment planning.

At its heart, sensory integration was never merely about sensation. It was about the integration of the whole person in the service of adaptation. It was about how sensation supports movement, emotion, relationship, participation, and the development of adaptive capacities within real-life experiences. Because sensory integration was never meant to be reduced to activities, tools, or inputs alone. Ayres’ work was always far more expansive, from an integrated center.

Integration itself is a powerful word.

To integrate means:

  • to bring parts into relationship
  • to organize for function
  • to connect systems in meaningful ways
  • to create coherence from complexity

Human development is integrative by nature:

  • Sensation integrates with affect.
  • Affect integrates with movement.
  • Movement integrates with intention.
  • Experience integrates with meaning.
  • Relationship integrates with regulation.

None of these occur in isolation.

This is one reason I have increasingly been using and encouraging the use of the phrase sensory integrative processing in my teaching, writing, and advocacy. Not to replace Ayres Sensory Integration®, but to deepen our understanding of the ongoing dynamic integrative processes involved in adaptation.

The word integrative shifts us toward the dynamic nature of what is really happening. It reminds us that integration is not a static achievement or a fixed trait within a child. It is an ongoing, state-dependent, relational, embodied process shaped by context, experience, neurobiology, and participation.

When we think integratively, we move beyond asking, “What sensory system is involved?” And instead begin asking, “How are sensory, affective, motor, relational, and environmental experiences being organized for the purpose of adaptation?”

My ‘trademark’ question lands this thinking — for the purpose of what?

  • Protection?
  • Connection?
  • Exploration?
  • Participation?
  • Belonging?
  • … ?

Perhaps this is where the enduring brilliance of Ayres still guides us. She did not simply study sensation. She studied adaptive action and human capacity. She studied how human beings organize themselves through experience to engage with the world.

Her legacy feels profoundly relevant today. Especially as neuroscience increasingly confirms what clinicians, families, and individuals have always known: human functioning is complex, embodied, relational, emotional, contextual, and deeply integrative.

Words shape worlds. I’m grateful for this community wherein we continue to explore them together.

About the author Tracy Murnan Stackhouse, MA, OTR

Tracy Murnan Stackhouse, MA, OTR, a leading pediatric occupational therapist, co-founded Developmental FX (DFX) in Denver. She earned her OT degree from Colorado State University in 1985 and a Master’s in Developmental Psychology/Developmental Cognitive Neuroscience from the University of Denver in 2003.

Tracy collaborates with the National Fragile X Foundation and advises the CDC, and is certified in SIPT, NDT, DIR Floortime, IPNB, and MSC. Tracy is dedicated to neurodiversity and engaged belonging as a vision for all. Her expertise includes authoring book chapters and papers on sensory integration, neurodevelopmental disorders, Polyvagal Theory, autism, FXS, and trauma.

She is a sought-after educator, leading courses on these topics with a focus on multidisciplinary models and clinical reasoning. Tracy co-developed the SpIRiT and S.T.E.P.S.I. Tools, which are shared through the Spirited Conversations Podcast as well as through DFX’s training platform, Learning Journeys.

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