what is autism spectrum disorder?

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What is autism spectrum disorder (autism)?

Autism is a natural part of human neurodiversity. It is a lifelong neurodevelopmental difference that influences how a person experiences, understands and interacts with the world around them. Autistic people may think, learn, communicate and process information in ways that differ from what is often considered typical.

There is no single autistic experience. Every autistic person has their own unique combination of strengths, interests, preferences and support needs. These differences can shape how a person engages with study, work, relationships and everyday life.

With understanding, acceptance and appropriate supports and accommodations, autistic people can thrive and pursue the goals, relationships and experiences that matter to them.

Note: Autism spectrum disorder is a clinical definition that includes conditions that were previously called: autistic disorder, Asperger’s syndrome and pervasive developmental disorder. Some people who experience autism prefer the term autistic, others prefer person with autism and some prefer neurodiverse – it’s always best to check with the person which term they prefer.

Understanding Autism

How autism is understood, experienced and talked about can vary across families, cultures and communities. For some young people, culture, language, family, spirituality, community connections or connection to Country can play an important role in shaping identity, wellbeing and support.

Many young people with autisim have experiences and identities that overlap, including being LGBTIQA+, living with disability, belonging to culturally diverse communities, or having other important parts of their identity that shape how they experience the world. These intersecting experiences can influence the types of support, understanding and inclusion that feel most helpful.

What are the characteristics of autism?

Autistic people may think, feel, learn, communicate or experience the world in ways that differ from what is often expected or understood as typical, including how they:

  • communicate and interact socially
  • experience and navigate their environment  
  • think or process information.

Some autistic people communicate and interact socially in ways that differ from what is often expected. This might include preferring direct communication, finding unspoken social rules confusing, approaching conversations differently, or having less interest in activities such as small talk. Some autistic people may also engage in "masking" (sometimes called camouflaging), where they adapt or hide aspects of themselves to fit in with social expectations. While masking can help people navigate some situations, it can also be exhausting and impact wellbeing over time.

Many autistic people have strong interests or passions that bring enjoyment, connection and a deep understanding of particular topics. These interests can be an important source of creativity, learning, identity and expertise. 

Some autistic people experience and respond to sensory information differently. This can include differences in how they experience sounds, lights, smells, textures, tastes or touch. For some people, certain sensory experiences can feel overwhelming, uncomfortable or distracting, while others may seek out particular sensory experiences because they are calming, enjoyable or help them focus.

Sensory differences can influence how a person experiences everyday environments and activities. Some people may benefit from adjustments, routines or strategies that help them feel more comfortable, supported and able to participate in ways that work for them. Preferences for routine, predictability and preparation can also be helpful in managing uncertainty and reducing stress, although these experiences vary from person to person.

Some autistic people also engage in repetitive movements, actions or sounds, often known as 'stimming'. This can include behaviours such as hand flapping, body rocking, repeating words or phrases, or arranging objects in particular ways. Stimming can be a helpful way to regulate emotions, process sensory information, express excitement, reduce stress or feel more comfortable in different environments. 

Some people may have a rich and creative imagination, but find tasks like organising what they need for the day challenging. Others may experience difficulty recalling recent events, or following lengthy, complicated instructions. Tasks involving multitasking, rapid changes or time pressure may require additional support, planning or accommodations for some people. For some people, having information about new concepts and tasks presented in a visual way can be helpful.

How is autism understood and recognised?

Autism is a natural part of human neurodiversity and is understood to be influenced by differences in brain development. Researchers believe autism is shaped by a combination of genetic and environmental factors, although there is no single known cause. Vaccines do not cause autism. 

Autistic traits are often present from early childhood, although they may not always be recognised straight away. Some people are identified in childhood, while others are not recognised as autistic until their teenage years or adulthood. This can happen for a range of reasons, including differences in how autism presents, individual coping strategies such as masking, and whether a person's experiences align with common stereotypes about autism. 

Autism can be experienced differently by different people. Factors such as personality, culture, gender, life experiences and other aspects of identity can all influence how autism is expressed and understood. As awareness of autism continues to grow, more people are gaining access to recognition, support and accommodations that help them thrive. 

How can autism affect other areas of life?

Autistic people can have a wide range of experiences at school, university, TAFE, work and in their relationships. While these environments can offer opportunities for learning, connection and growth, they are not always designed to support different ways of communicating, learning, processing information or interacting with others. This can create barriers that affect participation, inclusion and wellbeing.

Experiences of exclusion, misunderstanding, stigma or discrimination can also affect mental health. Everyone's experience is different, and factors such as culture, disability, gender, sexuality, family, community and life experiences may shape both the challenges a person faces and the supports that feel most helpful. Creating inclusive, accessible and affirming environments can make a meaningful difference to belonging and wellbeing.

Some autistic people may also experience mental health challenges such as anxiety, (including social anxiety) or depression, alongside other neurodevelopmental differences such as attention deficit hyperactivity disorder (ADHD). Others may have additional learning, health or disability-related support needs. These experiences vary widely and are just one part of a person's identity.

With understanding, acceptance and appropriate supports and accommodations, autistic people can build meaningful relationships, pursue their goals and thrive across all areas of life.

Getting help  

Some autistic people find support helpful at different times in their lives. The type of support that works best will vary from person to person and may change over time. Support might involve learning more about autism, accessing adjustments at school, TAFE, university or work, connecting with supportive communities, or working with health professionals when needed.

Some people find it helpful to develop strategies for navigating relationships, communication and social situations in ways that feel authentic and comfortable for them. This might include understanding boundaries, managing disagreements, building connections with others, or navigating dating and relationships.

GPs can discuss eligibility for the National Disability Insurance Scheme (NDIS), which provides funding for eligible people to access supports and services.

Support can look different for different people. Alongside professional support, many young people find strength in family, friends, community, culture, spirituality, Elders, mentors or connection to Country. Talking with someone you trust about your experiences can be an important source of understanding and support. 

If you'd like additional support, speaking with your general practitioner (GP), local headspace centre, or eheadspace can be a helpful first step. They can work with you to better understand your needs, explore support options and connect you with services that feel right for you.

 

Look after yourself

Alongside professional support, there are many ways to support your mental health and wellbeing. What works will be different for everyone.

Some people find it helpful to;
- stay connected with supportive people
- spend time on interests and activities they enjoy
- communicate their needs, prioritise rest, or develop strategies for managing stress and navigating challenges
For many people, culture, community, Country, spirituality, identity and a sense of belonging can also be important sources of wellbeing. 

For more information visit eheadspace for online and phone support or find your nearest headspace centre

Other useful websites: 

 

 

 

 

The headspace Content Reference Group oversee and approve clinical resources made available on this website. 

Last reviewed

11 September 2026

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