@realdoll03 There are many issues with it.

I think it never should have been included in autism to begin with. I think it is demonstrable nonsense, that is harmful and discriminatory to view PDA as an ASD. A huge issue, is a lack adequate engagement with Newson's work.
@realdoll03 I have seen many mental contortions to view PDA as an ASD. Like Pervasive Developmental Disorders are not practiced anymore only ASDs do. Issue there is that Newson's PDDs, are NOT the same as DSM-4 ones.
@realdoll03 PDA not conforming to DSM-4 PDDs understandings were not considered by the committee that set the DSM-5 autism criteria. How PDA has to be autism as it social communication issues and RRBIs.
@realdoll03 No, it does not, one, we can remove social communication issues, as others removed the Developmental Traits. Two, we can create a new diagnostic grouping for PDA to go into, afterall Newson has already done for that PDA herself in 1986 - 1996.
@realdoll03 If one engages with Newson's work, she consistently argued her PDDs needed to have Coding issues. All she really did was repackage her Pervasive Developmental Coding Disorders group into this diagram.
@realdoll03 I think it very much remains to be seen if PDA even has Coding issues. There are far too many issues with the assumption there are Coding issues in PDA.
@realdoll03 Where am I going with this. Simple, it is a fallacious argument, to claim PDA has to be autism, because it was viewed a Pervasive Developmental Disorder, and it does not account for many different things.
@realdoll03 I set out the main reasons we cannot assume PDA is autism from Newson's work here:
@realdoll03 There are other important factors why PDA is viewed as an ASD, another one is that Wing and Gould prematurely critiqued Newson's work in 2002, without apparently properly engaging with it.
@realdoll03 Newson's article was published in 2003. I fully accept that much of Wing and Gould's critique of Newson's work is valid, such as Newson did not validate PDA and that PDA features are not specific to it.
@realdoll03 @threadreaderapp Please could you unroll.

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More from @Richard_Autism

14 May
Something that has been on my mind recently, is that by arguing for a clinical need for PDA based on protecting certain autistic persons from reinforcement based approaches, actually establishes a clinical need for PDA in non-autistic persons too.
The reasons for this is simple. The SEND system is needs based, not diagnostic labels. So by (in their view) establishing PDA is needed for certain strategies, to prevent harm to certain individuals from reinforcement-based approaches...
... under the SEND system that reason would also be applicable to non-autistic persons with PDA. Which are in the academic literature. Remember Newson's cohort has non-autistic persons in it & she argued they all needed same strategies...
Read 9 tweets
11 May
Reflecting how my journey on PDA, has gone from "rebranded autism" in 2017, next a pseudo syndrome resulting from interaction of autism & various comorbids. To it is a common Disorder.

Anyone want to take bets, I will view it as a rare autism subtype (joke)?
I should point, I can see why people think PDA is rebranded autism/ a pseudo syndrome resulting from interaction of autism and various comorbids.
I can see why people think PDA is a rare autism subtype. I think that outlook is not cogent, nor particularly scientific nor ethical. I can go into detail why I hold that view.
Read 64 tweets
9 May
In other news, I have realised I should probably add "Problematic Demand Avoidance" to list of names for PDA.

That I should call one clinic's PDA "Extreme Extreme Demand Avoidance" to accurately represent narrowness & seemingly absurdity of their position.
I have a list of 10 different PDA's name in print here:
researchgate.net/publication/33…
Screen shot of the list, as I forgot to include it before
Read 58 tweets
7 May
Reflecting on this blog post from three years ago:
rationaldemandavoidance.com/2018/04/08/win…
I still think PDA discourse needs to evolve include divergent perspectives, although, that now seems further from happening than ever. I mean, not even acknowledging valid critique etc.
rationaldemandavoidance.com/2021/04/30/a-d…
There seems to be little interest or motivation for "PDA is an ASD" supporters generally engaging with critique. I think what will happen is that similar studies to this occurring to PDA.
psyarxiv.com/zh64e/
Read 11 tweets
2 May
I am slightly upset by this. For those who think PDA is significantly different for autistic persons vs non-autistic persons. I give you 150 reasons that contradicts you (as it includes non-autistic persons):
adc.bmj.com/content/88/7/5…
There are other reasons to think, such as processes that develop & maintain PDA behaviours are not specific to PDA. Also need same strategies & protection from reinforcement-based approaches.

I will keep on saying this what matters the most
"criteria will be their clinical utility for the assessment of clinical course and treatment response of individuals grouped by a given set of diagnostic criteria."

I.e. not a clinicians view PDA is autism.
Read 4 tweets
2 May
A quick thread on reasons why PDA is controversial.

I would appreciate feedback on this, and it is in no particular order.
•The “pathological” descriptor is demeaning and horrible.
•PDA lacks consensus on what it is.
•There is no standardised diagnostic profile or validated tools.
•PDA is not in either main diagnostic manuals.
•PDA risks undermining validity of clinical based language, as it involves an atypical approach to nosology.
Read 18 tweets

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