@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Yes, refers to an out of date image from 1999 and not Newson's later views on the topic.
Yes, refers to an out of date image from 1999 and not Newson's later views on the topic.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.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Newson explicit says PDA is not an autism spectrum disorder. Argue against calling PDA umbrella autistic spectrum. adc.bmj.com/content/archdi…
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian That Newson's PDD-NOS included non-autistic persons, as it was not meeting threshold for either: Aspergers/ Classic autism/ PDA/ specific impairment.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian That Newson does not base PDA off the triad of impairment.
It is hard for anyone to argue PDA is an ASD when presented with this information.
It is hard for anyone to argue PDA is an ASD when presented with this information.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Present people with this image from 1999, then Christie can make his arguments PDA is an ASD, like does. Present it with the later image, much harder for him to do what he does.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian The weird thing is that is from what I can tell Newson could have argued for PDA to be included in accepted PDD umbrella understandings. I.e. without presenting PDA & creating her own version of PDD umbrella.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Previous image is from DSM-4. Best guess, is that Newson did what she did as she was still working from her own diagnostic grouping understandings from 1986 - 1996: Pervasive Developmental Coding Disorders:
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian Newson knew of the triad of impairment in 1982, before she created Pervasive Developmental Disorders grouping in 1986 & PDA behaviour profile in 1988. She never based PDA on the triad of impairment. Nor systematically assessed for autism features.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian It does appear that Newson deliberately went out of her way to make PDA not autism.
She certainly passed opportunities to make PDA conform to autism understandings.
Which Christie should really mention when arguing PDA is an ASD.
She certainly passed opportunities to make PDA conform to autism understandings.
Which Christie should really mention when arguing PDA is an ASD.
@AnnMemmott @ElaineMcgreevy @EmilioLees @abaukdiscussion @milton_damian @threadreaderapp please unroll
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