Understanding Autism Spectrum Disorder and Sensory Processing Across the Lifespan
Autism Spectrum Disorder (ASD) is a neurological condition that affects how a person’s brain develops and processes information. It is referred to as a spectrum because individuals with ASD can present with a wide range of characteristics, strengths, and support needs. No two people with ASD are the same, and characteristics may look different across childhood, adolescence, adulthood, and older adulthood.
ASD is not an illness or injury, but rather a lifelong neurological difference. With appropriate supports and individualised interventions, individuals with ASD can participate meaningfully in daily activities, relationships, education, work, and community life.
Sensory Processing and Autism Spectrum Disorder
Sensory processing refers to how the nervous system registers, organises, and responds to sensory input. This includes environmental sensations such as sound, light, touch, taste, and smell, as well as internal sensory systems that contribute to balance, movement, body awareness, and internal regulation.
Many individuals with ASD experience differences in sensory processing, which can include:
- Heightened sensitivity to sensory input (for example, being easily overwhelmed by loud noises, bright lights, or certain textures).
- Reduced sensitivity to sensory input (such as having a high pain tolerance or seeking strong sensory experiences like movement or pressure)
- Mixed sensory responses, where some sensory systems are over-responsive while others are under-responsive
Sensory processing differences are not behavioural choices; they reflect how the nervous system interprets sensory information. These differences can make it difficult for individuals to filter out unwanted sensory information, and to integrate the sensory responses into everyday life.
Sensory Processing Strategies
Sensory processing strategies are often used across therapy services to support regulation, attention, and participation in meaningful activities. Programs such as the Alert Program (“How Does Your Engine Run?”) provide simple ways for individuals to recognise their level of alertness or sensory load and identify strategies to help them recognise when they are becoming too overwhelmed and how to recognise the different stages of alertness in their body. Sensory-based approaches are very specific to each individual and can support emotional regulation, physical performance, and functional participation across daily routines and life roles. For more information on these strategies, click the link below.
The Alert Program® – The Alert Program
How Occupational Therapist’s (OTs) at Community Neuro Rehab Service (CNRS) support individuals with ASD and sensory processing difficulties
At CNRS, we like to work to the individual needs of our clients and meet them exactly where they are at. This can look like having sessions at our clinic, schools, in the community, or at a client’s home environment. Once we establish rapport, our OT’s will complete a sensory profile/ checklist to identify the unique and specific sensory needs of their client. Once a baseline has been identified, our OT’s work with the client and their support networks to provide education and strategies that are specific to the wants and needs of each client and their family. This can look like exploring different sensory experiences, creating sensory diets to target both sensory and emotional regulation, and helping clients translate these strategies across a range of environments specific to the client needs.