Sensory Processing Disorder

Understanding Sensory Processing Disorder: Signs, Causes, and Support Strategies

If your child melts down over the texture of their socks, refuses to eat anything crunchy, or seems completely unaware of how loud their voice is — you are not imagining things, and you are not alone. These experiences may be signs of sensory processing disorder (SPD), a condition that affects how the brain receives and responds to information from the senses.

As a parent or caregiver, it can feel overwhelming to watch your child struggle with everyday experiences that seem effortless for other kids. But understanding what SPD actually is — and what support looks like — can make an enormous difference for your family. This guide is designed to walk you through the basics in clear, honest language so you can feel more confident navigating next steps

What Is Sensory Processing Disorder?

Sensory processing disorder is a neurological condition in which the brain has difficulty receiving, organizing, and responding to sensory input from the environment. Think of it like a traffic jam in the brain — messages from the senses (touch, sound, sight, taste, smell, movement, and body awareness) either don't flow smoothly or get misread along the way.

Children with SPD may experience the world as either far too intense or not intense enough. Some are overwhelmed by sounds, lights, or physical touch that others barely notice. Others actively seek out intense sensory experiences — crashing into furniture, touching everything in reach, or making constant noise — because their nervous system craves more stimulation than typical environments provide.

It's worth noting that SPD is not currently listed as a standalone diagnosis in the DSM-5, but it is widely recognized by occupational therapists and behavioral health professionals. It also commonly co-occurs with autism spectrum disorder (ASD), ADHD, and anxiety.

Common Signs of Sensory Processing Disorder

No two children with SPD present exactly the same way. Symptoms vary based on which senses are affected and whether the child is over- or under-responsive to input. Here are some of the most common signs to look for across both categories.

Signs of Sensory Over-Responsivity (Hypersensitivity)

• Extreme distress around loud noises, such as hand dryers, sirens, or crowded rooms

• Refusal to wear certain clothing due to tags, seams, or fabric textures

• Strong aversion to being touched, hugged, or bumped into unexpectedly

• Gagging or refusing foods based on texture, smell, or temperature

• Sensitivity to bright lights or visual "busy-ness" in a room

• Emotional meltdowns in response to sensory triggers that seem minor to others

  
  

Signs of Sensory Under-Responsivity (Hyposensitivity)

• Appearing unaware of pain, heat, or cold

• Needing to touch everything and everyone

• Seeking out intense physical experiences — jumping, crashing, spinning — more than typical peers

• Difficulty regulating voice volume or physical force

• Slow to respond to their name or verbal instructions

• Seeming clumsy or uncoordinated in daily movement

  
  

Some children show a mix of both patterns across different sensory systems, which can make identification especially tricky.

What Causes Sensory Processing Disorder?

Researchers are still working to fully understand the origins of SPD, but current evidence points to a combination of neurological and environmental factors.

Neurological Differences

Studies using brain imaging have found differences in the white matter microstructure of children with SPD — essentially, the neural pathways responsible for carrying sensory signals may be less organized or efficient. This helps explain why sensory input that the brain should filter and process smoothly instead becomes overwhelming or goes unnoticed.

Genetic Factors

SPD tends to run in families, suggesting a hereditary component. Parents who struggle with sensory sensitivities themselves often recognize similar patterns in their children. Twin studies have also supported the idea that genetics play a meaningful role.

Prenatal and Early Childhood Factors

Some research has connected SPD to premature birth, low birth weight, prenatal stress, and limited early sensory experiences during critical developmental windows. Children who spent extended time in the NICU or experienced early trauma may also be at higher risk.

It is important to understand that SPD is not caused by bad parenting, diet, or a lack of discipline. It is a difference in how the nervous system is wired — not a behavioral choice.

How Sensory Processing Disorder Affects Daily Life

For families living with SPD, the impact goes well beyond the occasional meltdown. When a child is constantly fighting sensory overwhelm — or constantly seeking more input — it affects their ability to learn, connect, and feel safe.

At school, a child with SPD may struggle to focus in a noisy classroom, become distressed during transitions, avoid the cafeteria, or have difficulty sitting still long enough to complete tasks.

At home, routines like bathing, getting dressed, eating meals, and going to sleep can become daily battles that exhaust the entire family.

Socially, sensory differences can make it harder to navigate playgrounds, birthday parties, and group activities — experiences that feel joyful to other children may feel genuinely painful or chaotic to a child with SPD.

The stress and isolation that come with these challenges can also take a real toll on a child's self-esteem and mental health over time.

Support Strategies for Children With Sensory Processing Disorder

The good news is that with the right support, children with SPD can learn to regulate their sensory experiences, develop coping strategies, and thrive. Here is an overview of the most effective approaches.

Occupational Therapy With a Sensory Integration Focus

This is typically the first-line intervention for SPD. A trained occupational therapist (OT) will assess your child's specific sensory profile and develop a personalized treatment plan. Therapy often takes place in a sensory gym and uses structured play to help the brain learn to process sensory input more effectively. Over time, many children show significant improvement in regulation and daily functioning.

Creating a Sensory-Friendly Environment at Home

Small environmental changes can have a big impact. This might include:

• Removing clothing tags and choosing seamless socks

• Using noise-canceling headphones in loud settings

• Designating a quiet "calm-down corner" with soft lighting and weighted blankets

• Providing a consistent, predictable daily routine

• Offering sensory breaks before and after high-stimulation activities

  
  

A Sensory Diet

A sensory diet is a personalized activity plan — developed with an OT — that provides the right type and amount of sensory input throughout the day to help a child stay regulated. Think of it like physical nutrition, but for the nervous system.

Behavioral and Mental Health Support

When SPD is accompanied by anxiety, emotional dysregulation, or co-occurring conditions like ADHD or autism, behavioral therapy can be an important piece of the puzzle. Therapists can help children build coping tools, improve emotional regulation, and develop language to communicate their sensory needs.

Advocating at School

Work with your child's school to put supports in place. This might include a 504 plan or IEP that allows for sensory accommodations — seating away from high-traffic areas, permission to use fidget tools, movement breaks, or a quieter testing environment.

When to Seek Professional Support

If sensory challenges are consistently interfering with your child's ability to participate in daily life — school, friendships, family routines, or sleep — it is time to reach out to a professional. You do not need to wait until things reach a breaking point. Early support is always more effective than waiting.

A behavioral health evaluation can help clarify whether SPD is present on its own or alongside other conditions, and give your family a clear roadmap for support.

You Don't Have to Figure This Out Alone

Parenting a child with sensory processing differences is a journey — and it doesn't have to be one you navigate without guidance. At Bloom Behavioral Health, our compassionate team specializes in evaluating and supporting children with sensory challenges, behavioral differences, and co-occurring conditions. We work alongside families to create individualized plans that are practical, evidence-based, and built around your child's unique needs.

Ready to take the first step? Contact Bloom Behavioral Health today to schedule a consultation. We're here to help your child — and your whole family — bloom.

❓ Frequently Asked Questions

What is the difference between sensory processing disorder and sensory issues related to autism?

Sensory processing difficulties are a core feature of autism spectrum disorder and are included in its diagnostic criteria. However, SPD can also occur in children who do not have autism. The key difference is that autism involves a broader range of social communication, behavioral, and developmental differences, while SPD specifically refers to how the nervous system processes sensory input.

Can sensory processing disorder be diagnosed by a pediatrician?

Pediatricians can be a valuable starting point and may refer you to the appropriate specialists, but SPD is typically assessed and identified by a licensed occupational therapist using standardized sensory assessments. Behavioral health professionals and developmental pediatricians may also be involved, particularly when co-occurring conditions are suspected.

Is sensory processing disorder a lifelong condition?

For many individuals, sensory differences do persist into adulthood, but with appropriate therapy and coping strategies, the impact on daily life can be significantly reduced. Many children who receive early occupational therapy make meaningful and lasting progress. Adults with SPD often learn to manage their sensory environment in ways that allow them to function well and lead fulfilling lives.

How is sensory processing disorder different from ADHD?

Both conditions can cause difficulty with focus, regulation, and behavior — and they frequently co-occur. The key distinction is in the root cause. ADHD is primarily a disorder of attention, impulse control, and executive function. SPD is rooted in how sensory information is processed by the nervous system. A child can have one, both, or neither, which is why a thorough evaluation is important before drawing conclusions.

What can I do at home to help my child before we see a specialist?

There are several things you can try in the meantime. Reduce sensory triggers where possible — swap scratchy fabrics for soft ones, dim overly bright lights, and reduce background noise during homework or meals. Build in sensory breaks throughout the day, and observe patterns in your child's meltdowns to identify consistent triggers. Keeping a brief daily journal of sensory reactions can also be very helpful to share with an evaluating therapist.

At what age can sensory processing disorder be identified?

Sensory differences can often be observed in infancy and toddlerhood — things like extreme difficulty with feeding, aversion to touch, or unusual responses to sound. A formal evaluation can typically begin around age 2 to 3, though many children are not identified until they start school and sensory challenges become more apparent in structured settings. There is no age that is too late to seek support.

Does diet affect sensory processing disorder?

While a nutritious diet supports overall neurological health, there is currently no specific diet proven to treat or cure SPD. Some families report that eliminating certain foods (such as artificial dyes or processed sugars) seems to help with regulation, but these effects vary widely. Any dietary changes should be discussed with your child's pediatrician or a registered dietitian, especially if your child already has significant food selectivity.