Understanding Demand Avoidance, Autism and PDA
- taniaslt
- Jun 17
- 5 min read
Many autistic children, young people and adults experience some degree of demand avoidance. Whilst this can sometimes be described using the term Pathological Demand Avoidance (PDA), it is important to understand what this means, what the current evidence tells us, and how professionals approach assessment and support.
What is Demand Avoidance?
Demand avoidance refers to difficulties engaging with everyday expectations, requests, responsibilities or tasks. These demands may come from other people ("Please put your shoes on"), from daily routines, or even from within ourselves ("I need to reply to that email").
Whilst everyone avoids demands occasionally, some autistic individuals experience demand avoidance much more frequently and intensely. This can significantly affect daily life, relationships, education, employment and wellbeing.
Research suggests that demand avoidance is common across the autism spectrum and is not limited to individuals who identify with a PDA profile. Studies indicate that approximately one in five autistic children may display particularly strong PDA-like traits, whilst broader patterns of demand avoidance are seen much more widely across autistic populations.
What is PDA (Pathological Demand Avoidance)?
The term Pathological Demand Avoidance was originally developed by psychologist Professor Elizabeth Newson to describe a group of children who appeared autistic but whose presentations differed from what was traditionally recognised as autism at the time.
Over the years, clinicians and researchers have described PDA as a profile characterised by:
Extreme avoidance of everyday demands
A strong need for autonomy and control
High levels of anxiety
Use of social strategies to avoid demands, such as distraction, negotiation, excuses or humour
Intense emotional responses when feeling overwhelmed
Difficulties with uncertainty and unpredictability
Variable presentation across different environments and people
Many individuals who identify with a PDA profile describe feeling overwhelmed by expectations and experiencing an intense drive to maintain autonomy.
Is PDA a Diagnosis?
This is an area that often causes confusion for families.
Whilst some clinicians do diagnose Pathological Demand Avoidance (PDA) as a distinct profile, it is important to note that PDA is not currently recognised as a separate diagnostic condition within the DSM-5 or ICD-11 diagnostic manuals. Within CADS, we therefore do not provide PDA as a standalone diagnosis.
Instead, we focus on understanding the underlying factors contributing to demand avoidance, such as:
Anxiety
Intolerance of uncertainty
Sensory processing differences
Executive functioning difficulties
Need for predictability
Difficulties with emotional regulation
The use of control as a coping strategy
Our aim is to understand why a person is finding demands difficult and to identify practical ways to reduce distress and improve daily functioning.
Why Does Demand Avoidance Happen?
Demand avoidance is rarely about being "difficult", "defiant" or "lazy".
Research and clinical experience suggest that several factors can contribute:
Anxiety
Anxiety appears to be one of the strongest drivers of demand avoidance. When demands trigger feelings of uncertainty, pressure or loss of control, the nervous system may move into a fight, flight, freeze or shutdown response.
Intolerance of Uncertainty
Many autistic individuals find uncertainty particularly challenging. Even seemingly simple requests can create anxiety if the outcome feels unpredictable.
Sensory Differences
Busy environments, noise, lighting, clothing textures or other sensory experiences can make demands feel overwhelming. Sometimes avoidance reflects an attempt to reduce sensory overload rather than avoidance of the task itself.
Executive Functioning Difficulties
Planning, organising, initiating tasks, shifting attention and managing multiple steps can all be difficult. What appears to be refusal may actually reflect challenges in knowing where to start or how to complete a task.
Previous Experiences
Repeated experiences of failure, criticism, overwhelm or misunderstanding can increase anxiety around future demands and contribute to avoidance behaviours.
Looking Beyond Labels
One of the most important messages for families is that demand avoidance exists on a spectrum.
Not every autistic person who avoids demands has a PDA profile, and not every individual experiencing demand avoidance will meet criteria for autism. Clinical guidance emphasises the importance of exploring the wider picture rather than focusing solely on whether a PDA label fits.
Understanding the person's experiences, strengths, anxieties, sensory profile and coping strategies often provides more useful information than focusing exclusively on diagnostic terminology.
Supporting Someone Who Experiences Demand Avoidance
Although every individual is different, several approaches are commonly found to be helpful.
Reduce Pressure
Using indirect and collaborative language can often feel less threatening than direct instructions.
Instead of:"Put your shoes on now."
Try:"I wonder whether we'd be ready to leave if our shoes were on?"
Offer Choice and Control
Providing meaningful choices can increase a sense of autonomy and reduce anxiety.
For example:
Which task shall we do first?
Would you prefer to do this now or in ten minutes?
Shall we work at the table or on the sofa?
Increase Predictability
Visual schedules, countdowns, routines and advance preparation can reduce uncertainty and help demands feel more manageable.
Break Tasks Down
Large tasks can feel overwhelming. Breaking activities into smaller, achievable steps can improve success and reduce anxiety.
Consider Sensory Needs
Identifying and reducing sensory stressors can significantly improve a person's ability to engage with demands.
Prioritise Regulation
People generally cope with demands more effectively when they feel safe, regulated and understood. Emotional regulation and co-regulation are often more effective than rewards, consequences or power struggles.
A Strength-Based Perspective
Although discussions about demand avoidance often focus on difficulties, many individuals who experience these challenges also demonstrate significant strengths.
Clinicians frequently describe people with demand-avoidant profiles as:
Creative
Independent thinkers
Strong advocates for fairness and justice
Imaginative
Determined
Compassionate
Highly observant
Recognising these strengths alongside challenges helps create a more balanced understanding of the individual.
Final Thoughts
Demand avoidance is a common experience for many autistic people and is often closely linked to anxiety, uncertainty, sensory differences and a need for autonomy. Whilst some individuals identify strongly with the concept of PDA, current diagnostic systems do not recognise PDA as a separate diagnosis.
At CADS, our focus is not on assigning additional labels but on understanding the underlying reasons behind demand avoidance and providing practical, personalised recommendations that support wellbeing, participation and quality of life.
When we understand the function behind the behaviour, we can move away from viewing demand avoidance as oppositional behaviour and instead recognise it as communication about an individual's needs.
Frequently Asked Questions
Is PDA a recognised diagnosis?
Whilst some clinicians describe PDA as a profile, it is not currently recognised as a separate diagnosis within DSM-5 or ICD-11.
Is demand avoidance common in autism?
Yes. Demand avoidance is common amongst autistic individuals and is often linked to anxiety, sensory processing differences, executive functioning difficulties and intolerance of uncertainty.
What causes demand avoidance?
Demand avoidance can be influenced by anxiety, overwhelm, sensory needs, difficulties with change and a strong need for predictability or autonomy.
Does CADS diagnose PDA?
No. CADS does not provide PDA as a standalone diagnosis. Instead, we explore the underlying factors contributing to demand avoidance and provide personalised recommendations.
Can adults experience demand avoidance?
Yes. Demand avoidance can affect autistic adults as well as children and young people, although it may present differently across the lifespan.
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