Pathological Demand Avoidance (PDA) Understanding Demand Avoidance Across the Lifespan

About this course

A Certificate of Completion for 2.5 hours professional development will be available for you to download upon completion of this course. 

Pathological Demand Avoidance (PDA)—sometimes reframed as a Persistent Drive for Autonomy—is a behavioural profile often associated with autism and ADHD. It is characterised by a strong need for control and a protective nervous-system response to perceived demands or loss of autonomy.

In this course, Barb Cook, an autistic, ADHD, and dyslexic professional and Registered Developmental Educator, explores the lived experience, neuroscience, and emotional landscape of PDA across the lifespan. The training focuses on understanding PDA through a neuroaffirming, regulation-based lens, helping participants reframe avoidance behaviours as signals of distress rather than defiance.

You’ll learn how anxiety, sensory sensitivity, and emotional regulation challenges interact with demand avoidance; how communication, relationships, and expectations can trigger or reduce distress; and how to foster environments that prioritise autonomy, connection, and trust.

This course equips parents, educators, and professionals with practical strategies to support daily living, communication, and wellbeing for people with PDA profiles—empowering them to thrive while maintaining a sense of control, safety, and authenticity.

Key Learning Areas

  • What is PDA and how it relates to autism and ADHD
  • Emotional regulation and the amygdala’s role in threat response
  • Understanding avoidance through a nervous-system lens
  • Links between anxiety, control, and overwhelm
  • Recognising and supporting shutdowns, meltdowns, and distress
  • Rejection Sensitive Dysphoria (RSD) and emotional pain
  • Interoception and sensory overload
  • Communication strategies that reduce demand and build safety
  • Supporting autonomy and self-advocacy across the lifespan
  • Health, wellbeing, and proprioceptive activities that aid regulation


Who is This Training For

Ideal for parents, carers, educators, allied-health professionals, and support workers seeking a deeper understanding of PDA and evidence-based, compassionate ways to support individuals with this profile.

Learning Outcomes

Participants will:

  • Understand the neurobiological basis of demand avoidance
  • Identify emotional, sensory, and relational factors driving avoidance
  • Apply strategies that promote emotional safety and autonomy
  • Recognise and support regulation through connection and flexibility
  • Build environments that reduce stress and support self-advocacy


Certification and Resources

Includes:

  • Certificate of Completion (2.5 hours CPD)
  • Presentation slides and practical handouts
  • 30-day access to the webinar recording


This training course may be claimable for Self & Plan Managed NDIS Participants. Please check with your plan manager/LAC.

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Course curriculum

    1. Autism/ADHD & PDA: Understanding Demand Avoidance Across the Lifespan

    2. Presentation Slides

    3. Recommended Readings (Books)

    4. Website Links

About this course

  • $69.00
  • 2.5 hours of video content
  • Certificate of Completion for 2.5 Hours Professional Development
  • 30 Days to complete course

Grow your knowledge, starting today

About the Presenter

Barb Cook Girl Women Autism Workshop

Barb Cook, M.Aut.(Ed), Dip.HSc.(Nut)

Registered Developmental Educator | NDIS Registered Specialist Level Positive Behaviour Support Practitioner | Integrative Nutritionist | Accredited Athletics Coach

Barb Cook is a registered Developmental Educator, past Deputy Chair of the Developmental Educators Australia Incorporated (DEAI), NDIS registered Specialist Level Positive Behaviour Support Practitioner, an Integrative Nutritionist, an accredited Australian Athletics Youth Development Coach and accredited athletics coach (specialising in throws) with Australian Track and Field Coaching Association (ATFCA).

Barb was diagnosed with ADHD, autism and dyslexia 2009 bringing a lived experience perspective alongside her clinical and research practice. She is a highly committed advocate, writer, editor, and highly sought-after international speaker. She has made appearances on Australian radio and television, in newspapers and magazines, and in the SBS television documentary The Chameleons: Women with Autism.

Barb holds a Master of Autism degree (education) from the University of Wollongong where she was also a researcher and co-project lead in the area of self-determination and self-advocacy for autistic teens and adults.

Barb takes a holistic approach in working with autistic/ADHD people and is dedicated to improving the overall well-being and quality of life for autistic, ADHD and dyslexic people. She is currently engaged in multiple research projects in the USA including a five year study on A Comparison of Two Brief Suicide Prevention Interventions Tailored for Youth on the Autism Spectrum, Comparing Cognitive-Behavioural Therapy versus Mindfulness-Based Therapy for Autistic Adults, and autism and ageing. 

Barb is internationally recognised for her bestselling book on autism in women, Spectrum Women: Walking to the Beat of Autism with Dr Michelle Garnett, filling the gap in literature between lived experience of autistic women and the clinical knowledge. Barb’s second best-selling book co-authored with Yenn Purkis, The Autism and Neurodiversity Self-Advocacy Handbook: Developing Skills to Determine Your Own Future, is an essential guidebook that gives you the tools and strategies to advocate for yourself in any situation, developing your skills in standing up for yourself, your needs and wishes. Barb's third book, Planning Your Career Through Intense Interests is focused on assisting young autistic adults in navigating careers pathways.

Barb is founder of Spectrum Women Magazine and is a prolific writer on autism, ADHD and health and wellbeing.

Barb is a highly sought-after international speaker and presents on a variety of topics. Barb spoke at the World Autism Organisation Congress 2018 in Houston Texas, in 2019 she was invited by the United States government to keynote a special event “A Woman’s Voice: Understanding Autistic Needs” for the National Institute of Mental Health (NIHM) in Washington DC, USA and 2024 spoke with Dr Temple Grandin, Dr Rebecca Evanko and Taylor Heaton in Albuquerque, New Mexico USA at AutFest on autistic women.

Barb was awarded the “A Different Brilliant” award at the Aspect National Recognition Awards in Sydney and the Leadership Support Award from the Neurodiversity Academy in 2021. In 2017 she received a Special Commendation from Queensland’s Governor, his Excellency, Paul De Jersey for the Autism Queensland Creative Futures Awards.

Barb is a passionate motorcyclist and a master's athlete specialising in javelin, discus, and shot put. She is also an all-around athletics coach and a dedicated volunteer at her local athletics club, where she supports young people of all abilities in discovering fun and fitness through athletics. Barb also enjoys roller skating and rollerblading at an outdoor rink near her home, and riding her motorcycle which helps her practice self-care and effectively reduces anxiety and combats depression.

Visit www.neurodiversityhub.com/barb-cook/ and www.barbcook.com.au to learn more about Barb Cook.

Published research:

29 August 2024: Brief Report: Under-Identification of Symptomatic Menopause in Public-Insured Autistic People. Teal W. Benevides, Barb Cook, Laura G. Klinger, Kiley J. McLean, Gregory L. Wallace, Meghan E. Carey, Wei-Lin Lee, Jonas Ventimiglia, Lauren D. Schiff and Lindsay Shea. Journal of Autism and Developmental Disorders.  doi.org/10.1007/s10803-024-06516-x  https://link.springer.com/article/10.1007/s10803-024-06516-x

19 May 2020: Listening to the autistic voice: Mental health priorities to guide research and practice in autism from a stakeholder-driven project. Teal W Benevides, Stephen Shore, May-Lynn Andresen, Barb Cook, Steven S. Coughlin, Dena L Gassner, Becca Lory Hector, and Lisa Morgan. Sage Journals: Autism doi.org/10.1177/1362361320908410 https://journals.sagepub.com/doi/full/10.1177/1362361320908410

11 May 2020: Interventions to address health outcomes among autistic adults: A systematic review. Teal W. Benevides, Stephen Shore, May-Lynn Andresen, Reid Caplan, Barb Cook, Dena L Gassner, Jasmine M Erves, Taylor M Hazlewood, M Caroline King, Lisa Morgan, Lauren E Murphy, Yenn Purkis, Brigid Rankowski, Sarah M Rutledge, Savannah P Welch and Karl Wittig. Sage Journals: Autism. doi.org/10.1177/1362361320913664 https://journals.sagepub.com/doi/full/10.1177/1362361320913664