Just imagine walking into a busy cafe, where you’re met with a strong smell of coffee, hot air filling the room, and loud music filling your ears. Just thinking about it may make your anxiety start building up. Welcome to the world of sensory defensiveness, where even the most innocent stimuli will drive children with autism to exaggerated responses.
Sensory defensiveness is a hallmark trait of autism, and it can be hard to deal with – both for children on the spectrum and their families. In this comprehensive guide, we’ll help you manage this condition in your little one so they can experience the beauty of life without feeling threatened.
What sensory defensiveness
Sensory defensiveness is a sensory processing disorder (SPD) in which individuals react defensively or excessively to stimuli that are typically considered neutral or positive.
This means the child may emotionally or behaviorally defend themselves or avoid certain sensations.
Sensory defensiveness can occur in any or all sensory systems, causing the child to avoid or feel irritated by various sensations.
For children with sensory defensiveness, the world can be overwhelming, leading to negative behavior and emotions.
This may cause them to avoid everyday activities, potentially delaying developmental milestones.
Different defensive behaviors are linked to specific sensory systems, such as:
- Auditory defensiveness: Being extremely sensitive to sound. The child might perceive sounds as too loud or intolerable in pitch.
- Visual defensiveness: The child may squint and feel uncomfortable in bright light, prefer staying indoors on sunny days, and become disoriented in visually busy environments.
- Oral defensiveness: Sensitivity in the sense of smell and taste.
- Vestibular, gravitational, or postural insecurity: Feeling sick or dizzy or experiencing fear can occur when exposed to activities that involve movement and body awareness.
- Tactile defensiveness: A child reacts strongly to touch, often avoiding or negatively responding to non-painful tactile stimuli.
Because sensory defensiveness isn’t officially diagnosed, these children are sometimes seen as out of control. In reality, they’re reacting to their brain’s perception of the world around them.
Visual defensiveness symptoms
Children with visual defensiveness may squint, cover their eyes, or look away from bright lights and busy patterns.
They can also feel overwhelmed in places with lots of visual details, like crowded classrooms or stores.
Auditory defensiveness symptoms
Kids who are auditory defensive often cover their ears or get upset by everyday sounds like vacuum cleaners, toilets flushing, or loud voices.
Auditory defensiveness may cause children to cry, run away, or experience meltdowns when noises seem too overwhelming for them to handle.
Tactile defensiveness in autism symptoms
Tactile defensiveness means your child may avoid certain textures or feel distressed when touched.
They might resist hugs, dislike tags in clothing, or refuse to play with messy materials like glue or sand.
But what causes tactile defensiveness? Tactile defensiveness is often caused by the way the brain processes touch sensations.
In autism and sensory processing differences, the nervous system can overreact to touch, making even light contact feel irritating, painful, or overwhelming.
Sensory defensiveness in autism
Many studies have found that a high percentage of autistic children face sensory difficulties.
In a study from 2007, 95% of children with autism spectrum disorder (ASD) showed some level of sensory processing difficulty.
Considering the odds, it’s likely that your autistic child may have sensory difficulties or sensitivities, possibly sensory defensiveness. Being aware of this can help parents prepare for situations that might overwhelm their autistic children.
Managing sensory defensiveness
Research suggests following methods to manage sensory defensiveness:
- A sensory diet: Sometimes, a child must eliminate gluten and dairy. The child may also need to be tested for deficiencies, and their diet may need to be supplemented to enable optimum nervous system functioning.
- Occupational therapy and speech therapy: Work with a team that understands your child’s condition and specific sensory difficulties
- Environmental adaptations: Practical examples like taking noise-canceling headphones to loud places or providing deep pressure with weighted blankets during times of stress are discussed.
- Parents should be aware of their child’s triggers
As they grow and learn more, children can advocate for themselves, better control their environment, and make more informed decisions as they recognize their strengths and sensory limitations.
What causes sensory defensiveness in adults and children?
To effectively support individuals with autism sensory defensiveness, it’s essential to understand the potential underlying causes.
The most common ones are:
- Complications during prenatal or birth stages
- Low birth weight
- Premature birth
- Stress and anxiety
- Substance use during pregnancy
- Genetic and environmental influences
- Exposure to strong chemicals during childhood
- Low sensory stimulation
You are your child’s biggest advocate
Research is beginning to shift how people view sensory difficulties. In the past, many in the medical community ignored conditions like Sensory Processing Disorder (SPD).
Parents who learn, speak up for their children, and create a less intimidating environment make a significant impact. Your autistic child, dealing with sensory defensiveness, is likely tired of facing a battle that the world often doesn’t understand.
FAQs:
Q: What is an example of sensory defensiveness?
A: Sensory defensiveness, where the brain is extra sensitive to sensory input, can be seen when a child reacts strongly to a sudden noise in the classroom, responding with an aggressive outburst.
Q: What causes sensory defensiveness?
A: Several factors, including premature birth, genetics, and environmental influences, are believed to contribute to sensory defensiveness.
Q: How is sensory processing sensitivity treated in adults?
A: Adults dealing with SPD can benefit from occupational therapy, where they can learn new responses to sensory input, potentially leading to improved handling of various situations and a better life.
Q: Can you have sensory issues without autism?
A: Individuals can experience sensory issues without having autism. Sensory issues can be present in various conditions and may also occur independently.
Q: Can anxiety cause sensory issues?
A: Anxiety can contribute to sensory issues, as heightened stress levels can impact how individuals perceive and process sensory stimuli. This can lead to increased sensitivity or difficulties in managing sensory experiences.
References
A Population-Based Twin Study of Parentally Reported Tactile and Auditory Defensiveness in Young Children
https://link.springer.com/article/10.1007/s10802-006-9024-0
Atypical sensory processing features in children with autism, and their relationships with maladaptive behaviors and caregiver strain, 2022
https://onlinelibrary.wiley.com/doi/full/10.1002/aur.2700#
Oral defensiveness: children with a dysfunction of sensory regulation
https://pubmed.ncbi.nlm.nih.gov/15719914/
Tactile functions: their relation to hyperactive and perceptual motor behavior
https://pubmed.ncbi.nlm.nih.gov/14116444/
Other articles you may be interested in:
- Sensory Cognition in Autism: What’s the Connection?
- What is the Sensory Processing Disorder ICD-10 Code?
- What is Sensory Modulation Disorder?
- Understanding Overstimulation in Autism
- Hyposensitivity Among Autistic Individuals
- How Can Sensory Deficits Impact Communication With ASD?
- Autism and Oral Fixation: All You Need to Know
- Autism Touch Aversion: Causes and Management Tips
