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3 Nov, 11 tweets, 9 min read
@AutismBoat @DrRubySapphire @AnnMemmott One cannot make the assumption from Newson's work PDA is part of the autism spectrum. Newson:
- Knew about triad of impairment in 1982, did not base PDA on it.
- There are important clinical differences that mean PDA is not autism.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- She removed any cases who presented autism (even atypical) autism features from her data base.
- Explicitly tells us PDA is not autism & should not described as that.
- Never assessed her PDA cases for autism.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Newson never systematically investigated features of autism features in her database.
- Included non-autistic persons in her diagnostic groupings, including a broader than what is accepted version of Pervasive Developmental Disorders.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Newson's definition for Pervasive Developmental Disorder - Not Otherwise Specified (PDD-NOS) is broader than is clinically accepted as it includes persons not meeting threshold for: Classic Autism/ Aspergers/ PDA/ Specific Language Impairment.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Other clinicians & research are indicating PDA is seen in non-autistic persons based on Newson's descriptions.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Newson said all persons with Pervasive Developmental Disorders have coding problems (failure to process/ make sense of certain aspects of communication). This does not reflective of accepted descriptions of Pervasive Developmental Disorders.
...
@AutismBoat @DrRubySapphire @AnnMemmott ...
- Newson said PDA needs to be substantially different from the autism spectrum (Asperger's & Classic Autism). Which her research suggests it is.
...
@AutismBoat @DrRubySapphire @AnnMemmott ... Short version viewing PDA as part of autism is the exact of what Newson was trying to do and how she viewed PDA.

Any credible, or reputable autism expert should be noticing this & saying PDA is NOT autism.
@AutismBoat @DrRubySapphire @AnnMemmott @threadreaderapp please could you unroll?
@AutismBoat @DrRubySapphire @AnnMemmott *Exact opposite of what Newson was trying to do*
@AutismBoat @DrRubySapphire @AnnMemmott @threadreaderapp unroll?

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More from @Richard_Autism

Richard Woods Profile picture
22 Oct
Some reasons why I use Newson's work:
1) Newson never viewed PDA as an ASD and this is reflected in her diagnostic criteria and clinical descriptions. She certainly never argued fitting PDA into 2 main diagnostic manuals based on accepted diagnostic groupings
2) Newson included non-autistic persons in her 2 diagnostic groupings, her own Pervasive Developmental Disorders grouping and her own NEW Pervasive Developmental Coding Disorder.
3) Newson never assessed persons with PDA for autism or systematically investigated autism features.
4) Newson often deliberately did things if she thought they helped other stakeholders, mainly parents.
Read 18 tweets
Richard Woods Profile picture
21 Oct
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Well, I stumbled upon today that Christie seems to have been misleading people since 2007 about Newson's views on Pervasive Developmental Disorders & PDA. Do not know if it is deliberate or not. Either way not a good look.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian He is leaving out information that undermines his argument PDA is part of autism due to Newson viewing it as PDD.

Yes, refers to an out of date image from 1999 and not Newson's later views on the topic.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Newson changed the diagram to include specific language impairments. She had wider definition & view PDD umbrella than what is accepted. Also said helpful to think persons with a PDD have coding issues.
Read 12 tweets
Richard Woods Profile picture
13 Oct
I do not believe it. It appears that Christie submitted evidence to have PDA recognised as an ASD in Australia. Did not disclose COI or mention pertinent information that would undermine PDA recognition.
@autismcrc This small group of professionals would be the PDA Development Group, that includes Christie, who has chaired the group.
…emandavoidancecom.files.wordpress.com/2020/08/2016-p…
@autismcrc What the PDA Development Group is and what it does:
…emandavoidancecom.files.wordpress.com/2020/08/pda-de…
Read 40 tweets
Richard Woods Profile picture
28 Sep
That moment when you realise the "splitters" (instead of lumpers) are trying to split autism using something that is not autism (PDA).
Normally, I would find this ironic, but I am still a bit speechless by realising how arbitrary some some features are assigned.

I have been looking at questions assigned to "Surface Sociability" in EDA-Q & the DISCO.
The intent was to analyse these items to see if any are RRBIs.

I am struck by is just HOW much there is an emphasis on this ONE trait in the tools, compared to Newson's own observations.
Read 21 tweets
Richard Woods Profile picture
23 Sep
@ElaineMcgreevy Possibly, but there is this, a table for my chapter for Damian & Sara. It shows that PDA clinical features are often based against autism stereotypes. Stereotypes often seem to become accepted clinical fact. Image
@ElaineMcgreevy I have updated the table to this, mainly changing PDA to DAP. Also noting that demand avoidance generally is manipulative. Image
@ElaineMcgreevy There is something that is nagging me. So mental health disorders are meant to represent discrete constellation of traits/ "symptoms" that hang together to form a unique syndrome.
adc.bmj.com/content/archdi… Image
Read 54 tweets
Richard Woods Profile picture
23 Sep
I am reflecting on Newson's "Surface sociability, but lack of sense of identity, pride, or shame" trait. There are aspects of it which are problematic, infact I would argue are an RRBI, or should be removed from it.
Her logic also seems faulty.
My concerns centre around the inclusion of behaviours that seem to indicate distress. Which means if a person is displaying these behaviours due to distress, they would be highly aroused.
Read 13 tweets

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