Autism Acceptance Month: What the Science Says About Sensory Experience

April is Autism Acceptance Month. Not awareness month — acceptance month. The distinction is intentional. Awareness says: this exists. Acceptance says: this belongs. For the autistic people, families, and clinicians who live and work in this space, the difference between those two sentences is not small.

At Divergent Sensory Solutions (DSS), we work with autistic individuals across the full range of presentations — including those who received their diagnosis last month and those who have known for decades and are still waiting for a support system that actually fits. This post is for all of them.

What Autism Actually Is

Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by differences in social communication, patterns of behavior, and — critically, though often underemphasized — sensory processing. The word ‘spectrum’ is frequently misunderstood as a line from mild to severe. It is not a line. It is a multidimensional profile. An autistic person may have intense support needs in one domain and none in another. Two autistic people may share a diagnosis and have almost no overlapping experience of it.

Sensory processing differences were formally added to the diagnostic criteria for autism in the DSM-5 in 2013. Before that, they were often listed as associated features or omitted entirely. The autistic community had been naming sensory experience as central for decades before the clinical literature caught up.

Sensory Processing in Autism: What the Research Shows

Research consistently documents that the majority of autistic individuals experience significant sensory processing differences across multiple sensory systems. A 2009 study by Tomchek and Dunn found that approximately 95 percent of autistic children showed measurable sensory processing differences compared to neurotypical peers. This is not a minority feature. It is a near-universal one.

These differences span all eight sensory systems — tactile (touch), auditory (sound), visual (light and contrast), olfactory (smell), gustatory (taste and oral sensitivity), proprioceptive (body position), vestibular (balance and movement), and interoceptive (internal body signals). Any system can be hyper-responsive, taking in more than the environment typically generates. Any system can be hypo-responsive, requiring more input to register. Many autistic individuals experience both, in different systems, at different times.

Sensory overwhelm — sometimes called sensory overload — is not a behavioral choice or a temperamental response. It is a neurological event. The brainstem and limbic system are processing threat signals in response to input that the nervous system cannot sufficiently filter. The response that follows — meltdown, shutdown, withdrawal, or flight — is the nervous system doing exactly what it is designed to do when it reaches its threshold.

What Acceptance Looks Like in Practice

Acceptance is not passive. It is not simply tolerating autistic difference or deciding that support is unnecessary. Acceptance means understanding the actual architecture of an autistic nervous system well enough to build environments, relationships, and daily structures that work with it.

It means lighting that does not generate threat signals. It means transition warnings that give the nervous system time to prepare. It means sensory accommodations in workplaces and schools that are grounded in assessment rather than guesswork. It means not asking an autistic person to function in an environment designed for a different nervous system and calling the struggle that results a behavior problem.

What DSS Does

Divergent Sensory Solutions provides RN-guided sensory assessment for autistic individuals and their families. The Sensory Clarity Consultation — a sixty-minute, whole-nervous-system assessment with Will Stock, Registered Nurse and Bachelor of Science in Nursing (RN, BSN) — produces a written sensory profile specific to how this nervous system processes the world. Not a general autism profile. This person’s profile.

The profile includes a regulation toolkit built around the client’s actual triggers, environmental modifications for home and daily life, language for Americans with Disabilities Act (ADA) accommodations, and a referral pathway if additional evaluation or support is indicated. It is designed to be used by the client’s existing care team: Occupational Therapists (OTs), psychiatrists, school teams, and primary care providers.

No new diagnosis required. No referral needed. The assessment is available to autistic individuals at any stage — newly diagnosed, long-diagnosed, self-identified, or still in the process of understanding what they are working with.

Book a free 15-minute sensory call at divergentsensorysolutions.org.

Reference: Tomchek, S.D. & Dunn, W. (2007). Sensory processing in children with and without autism. American Journal of Occupational Therapy, 61(2), 190-200.

Breath.