You might already be confused, since even the name for PDA is a topic of debate. Depending on where you look, you’ll see different terms used to describe this complex profile:
- Pathological Demand Avoidance: The most commonly used term in research and clinical settings.
- Pervasive Drive for Autonomy: Preferred by many who identify with PDA, as it focuses on autonomy rather than pathology.
- Newson’s Syndrome: Named after Elizabeth Newson, the researcher who first described the profile.
- Extreme Demand Avoidance – Emphasizes the intensity of the behaviors without the negative connotation of “pathological.”
- Autism with Demand Avoidance – Frames PDA as a characteristic or symptom of autism.
- Autism with PDA Profile – Presents PDA as a specific subtype or profile within the broader autism spectrum.
Why the Different Names?
The debate on how to name PDA centers on whether it should be viewed as a disorder requiring intervention or as a natural neurodivergent variation that needs understanding and support (spoiler alert: I believe it’s a natural variation that requires support, but with components that can also be treated, like ADHD or anxiety).
Adding to the confusion is the fact that autism itself was once divided into subcategories—Asperger’s Syndrome, PDD-NOS, and classic autism—but those have since been eliminated, with all variations now captured under the broader autism spectrum disorder (ASD) umbrella. So proposing a new sub-category of autism is problematic, since the desire was to unify the diagnosis rather than subdivide it.
Further complicating things is the variation in psychiatric diagnoses across regions. In Europe, PDA is widely recognized, while in North America, many medical and psychological professionals are unfamiliar with the term.
What is Demand Avoidance?
Demand avoidance is something that everyone experiences. At its most basic level, it’s simply the act of avoiding a demand. For a young child, this could be as simple as saying “no” when asked to put on their shoes. In a typical adult, it might manifest as procrastination or not responding to emails.
It’s important to recognize that demand avoidance isn’t exclusive to autism, nor is it always abnormal. Demands come in many forms—more than just requests from others—and avoiding them isn’t always about evading unpleasant tasks. Demands can include things like receiving gifts (and the pressure to “act appropriately”), accepting praise, attending to internal needs like thirst or hunger, choosing what to eat, or even engaging in activities we love, such as hobbies.
In PDA, demand avoidance interferes with daily life and relationships, often severely. This behavior is triggered by a subconscious sense of threat, activating the brain’s fight, flight, or freeze response. For individuals with PDA, demands feel like a loss of control, causing anxiety or panic. These reactions aren’t just refusals, but part of an underlying neurological difference that results in the body becoming overwhelmed and reacting the same as if it were responding to danger.
Definition of PDA
Depending where you look, different views of what PDA actually is can be found.
A Simple, Non-Pathologizing View
PDA is a pattern of avoiding demands, driven by a strong need for autonomy and control. Everyday requests feel overwhelming and result in resistance or refusal.
A Disability-Focused View
PDA is an anxiety-based neurological disorder where the subconscious detection of a threat triggers a growing sense of panic, resulting in a fight/flight/freeze response to even routine demands.
Why Neither Definition is Enough:
The simple view makes it sound like PDA is merely a matter of choice—just saying “no” or refusing demands because someone doesn’t want to comply. This overlooks the intense emotional and neurological roots of the behavior, minimizing how overwhelming demands truly feel for someone with PDA.
On the other hand, the disability-focused definition can feel too clinical, framing PDA solely as a disorder. While it captures the underlying brain differences, it doesn’t fully explain the complexity of the individual’s experience, which involves more than just panic—it also includes their deep need for autonomy, their creativity in avoiding demands, and the unpredictability of when and how demands will trigger avoidance.
Together, these definitions help paint a fuller picture, but neither can fully capture the lived reality of PDA.
More Reading
By far, the best way to understand PDA is to listen to the voices with lived experiences. Kristy Forbes and Eliza Fricker are two excellent authors and resources to follow. The PDA Society is very comprehensive with a huge list of vetted resources as well as printable materials.
Another great approach is to start learning about complex trauma and PTSD, as the Autistic PDA profile is very comparable in how the brain responses to a perception of threat.
(these are not affiliate links)
How Have I Come to Understand PDA?
My understanding of PDA has evolved as I’ve grown to understand my son better.
In addition to being creative, funny, intelligent, and talented in so many ways, my child was born with a brain that senses and interprets threat differently than typical children. He will always be this way and is not something he chooses intentionally.
His need for autonomy and a feeling of equality is hard-wired into his brain, as unconscious and instinctive as his drive to breath.
When he feels any loss of control, his sense of panic causes reactions that are extreme. Challenges with skills like frustration tolerance, impulse control, and sensory processing make everything harder. The only way he knows to regain a sense of safety is to try to gain the upper hand, any way possible, over others and the environment. This is disabling for him and our family.
By accommodating his disability as he ages, the hope is he will gain enough skills in emotional regulation and managing his anxiety to stay safe and lead an independent and successful life, capitalizing on his strengths and not his difficulties.
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