Richard Woods Profile picture
Apr 21, 2021 21 tweets 8 min read Read on X
So I have been looking at Soppitt's PDA and how it relates to other conditions diagram. This is my version of Soppitt's diagram (2021, p299). I fully spelled out ADHD's name.
This is my version of the diagram. I might change the "Rational Demand Avoidance" to "Pathological Demand Avoidance", as to me its the same thing. Nominally using RDA as it is a better name than PDA.
I have added anxiety in between autism and trauma circles. I have added trauma/ developmental trauma to recognise some view PDA to be developmental (even though that is optional for a PDA dx/ not needed).
Trauma being properly included as I think PDA is can be caused by trauma, especially at lower diagnostic thresholds & under transactional approaches to PDA.
…emandavoidancecom.files.wordpress.com/2020/08/06-aug…
I have changed the wording to be a bit more specific. Does this look OK, or should I go back to ones where I use "Features overlap"?
I need to explain why PDA is shown as a star, this is because PDA as a construct seems to have features of many conditions. Most diagnostic thresholds are relatively broad, including Newson's.
It does not seem right to me, that PDA is shown as small dot compared to other constructs.

The advantage of this image it shows that PDA has a "spikey profile" of features (symptoms depending on the outlook).
This makes sense considering comments of PDA seems to contain features from other conditions/ constructs. It supports various research results which indicate PDA is predicted by OCD/ ADHD (hyperactivity)/ Conduct issues/ Personality Predictors.
Or other research that find associations between autism, anxiety and conduct problems.

It helps to explain the diverse amount of perspectives on PDA, like some view it as autism. Some think PDA is seen in non-autistic persons.
What can happen is that features of PDA that are associated with other conditions/ constructs, that a person expresses can change over time (lifespan)/ person's transient situations. Also explains how observer's bias can see different aspects of PDA.
I also think it helps to explain, why PDA is striking to people, that it just seems to have a unique blend of features from established constructs, that make it so recognisable.
At the same time it underlies how PDA has no feature that is specific to it. Which is noted many times in the PDA literature.
I think the diagram makes sense within the literature. I tried to accommodate various outlooks on PDA. Personally, I considered renaming autism circle with anxiety. You know professionalism and personal integrity.
@milton_damian @Allison66746425 @PDASociety @Autism @Shona_Mu
Here is the current version & my version of Soppitt's (2021, p299) for reference. Open to feedback on it.
@Georgin24661487 you will probably be interested in this thread.
Oh Soppitt's original, image is a scan. I also changed "ASD" to "Autism".
Just including other relevant information before tagging thread reader app. So this is my version of Rosen et al (2021) image for comparing PDA to autism. It just shows PDA being rather clunky in constituent features compared to autism.
Just other relevant issues with Developmental definition and reasons why PDA is not intrinsically developmental in nature.
Sorry I need to re-upload comparing Soppitt's original venn diagram to editing of his.
I have added capitals to my edits of Soppitt (2021, p299). It is only a minor thing, but if people are going to use it, best to maintain standards.
I would happily receive feedback on it the image.
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More from @Richard_Autism

Nov 19
This is my latest image showing how social avoidance behaviours to demand can escalate. It is adapted from PDA Society's "What is PDA" booklet, p7. Image
It is adapted from this image from PDA Society 2021 p7. Image
Why have I created a new image?

There are aspects of previous image I am uncomfortable with.
Read 18 tweets
Nov 17
Title and abstract for my talk next month.

Title.
What are the predicted risks of the proposed autism subtypes of “Profound Autism” & “Pathological” Demand-Avoidance (PDA)?
Abstract.
Leo Kanner suggested autism as a subtype of Childhood Schizophrenia, as part of the historical broader attempts to categorise people expressing social communication via subtypes over the last nine decades. ..
...Other attempts to successfully divide Autistic persons into subtypes have consistently failed to produce stable subtypes which can be reliably identified, and which have been challenged for creating avoidable prejudice and stigma...
Read 10 tweets
Oct 28
There is much to admire about someone's dedication to "PDA Profile of ASD".

Still, @milton_damian have you, or I ever intended Rational Demand Avoidance to say one's demand-avoidance is entirely rational reasons, or only "good reasons"? Image
The assumption that rational demand avoidance, means a person can only experience demands due to "good reasons"/ rational reasons to be used to justify the pretense of the claimed split between RDA & PDA. Image
There does not seem to much consideration that reasons why someone might express "rational" demand avoidance, or for "good reasons", might be irrational, or "random" reasons.
Read 45 tweets
Oct 28
“There is a lot of idiosyncratic interpretation of autism, depending on how much each service adheres to the NHS’s diagnostic criteria and what each psychiatrist’s own interpretation of what autism is.” Prof Marios Adamou.
Would be interested in how "PDA Profile of ASD" is represented in those figures. Theoretically, if "PDA Profile of ASD" advocates are correct PDA is needed to expand definition of autism, PDA diagnoses should be over represented in areas higher positive dx rates!
Read 17 tweets
Oct 25
This is a short thread on the title & abstract for the talk!
Title.
Why is it premature to split “Rational” Demand-Avoidance from “Pathological” Demand-Avoidance?
Abstract.
Since 1983 “Pathological” Demand-Avoidance (PDA) has been a contentious term for a proposed psychiatric disorder partly representing intense responses to demands, rapid mood changes, and sometimes other characteristics....
Read 12 tweets
Oct 18
Thread on draft slides for “Pathological” Demand-Avoidance (PDA) & Pediatric Symptom Checklist-17. video.

Video should be published weekend of 19th-20th of October 2024.
Below is the title slide for this presentation. Image
Usual caveats:

Text may change slightly from what is video.

Text from slides common to videos, like my perspective/ background etc will be left out.

Will show references slides, but not text from reference slides.
Read 69 tweets

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