Monthly Archive for July, 2011

ASAT newsletter pending

Do you want to know more about evidence-based interventions for Autism? Are you weary of wading through a lot of over-hyped-and-not-well-tested methods hoping to find one gem? Do you come back to EBD Blog because you pine for trustworthy news about Autism?

There is an alternative, another source: The Association for Science in Autism Treatment has a regular newsletter and a new one is about to be released. If readers hustle their bustles, they can register in time to receive the next issue which includes (according to a mailer I received)

  • A feature article in which Dr. Thomas Zane discusses the adoption of Fad Treatments in Autism.
  • Four research article summaries (ranging from treatment comparisons to prevalence of adults with autism).
  • Spotlight on a new organization Advancing Futures for Adults with Autism.
  • Two Clinical Corners (Food Selectivity and Help with the Dentist).
  • Consumer Corner (Review of Transition Resources for Adolescents and Adults with Autism).
  • An in-depth group interview about fostering positive portrayals of science-based treatment in the media.

…and for the rest, you’re just going to have to read to find out!

Here’s a link to register for the newsletter: http://www.asatonline.org/signup. I encourage folks to do.

And, if you ever forget how to find ASAT, you don’t have to poke around looking for this message. Just check over there in the siderail. You’ll find it listed in the “Web Resources.”

Sphere: Related Content

Research participation opportunities

In an accompanying PDF I have listed studies that are currently seeking children (both female and male) with Emotional of Behavioral Disorders (especially autism spectrum disorders) as participants (some include adults, as well) that are registered with ClinicalTrials.gov, a service of the US National Institutes of Health (NIH). The studies have diverse purposes: They may be observing different events (whether overt behavior or neurochemical activity) or they may be testing different therapies (ranging from behavioral to medical methods). Many are sponsored at least in part by the NIH, but some have funding from universities or even private industries. Because of its affiliation with NIH, ClincialTrials.gov is more likely to represent medically oriented studies and studies that use rigorous scientific methods (i.e., randomized clinical trials or RCTs), but this is not exclusively the case. Readers should examine the studies carefully.

The list is not exhaustive (I used “autism” in the search, so there are many more studies that could be located by using other terms), and I’ve provided only some of the data about each study in the table, but you can learn a fair bit about individual studies. For example, one can learn about study number NCT00198107 that is entitled “Evaluating the Effectiveness of Aripiprazole and D-Cycloserine to Treat Symptoms Associated With Autism.” It focuses on individuals with Autistic Disorders and examines an intervention (in this case, comparing drugs called Aripiprazole D-cycloserine to placebo in a randomized design with double-blind (Subject, Caregiver, Investigator, Outcomes Assessor) | Primary Purpose: procedures. The study began 1-Sep-05 and will end 1-Sep-11 (making it odd that it is still listed as open, no?).

To locate additional information about a particular study, copy the NCT ID number, go to ClinicalTrials.gov, and enter that number into the search box. Download the PDF here (10 pages).

Sphere: Related Content

Is environment > genetics in cause of Autism?

New research by Joachim F. Hallmayer and colleagues released on 4 July 2011 raises questions about how strong a role genetic factors play in causing Autism. A large and careful twin study by Professor Hallmayer’s Stanford University team conducted with the support of the US National Institutes of Health (NIH) found that other factors known as the “shared environment” also influence susceptibility to Autism to a greater degree than previous research had indicated.

In genetics research, outcomes such as Autism can be caused by (a) genes, (b) shared environmental factors, (c) non-shared environmental factors, and (d) various interactions among these first three factors. (Technically, there is also “error,” a factor which is included to allow for some slippage is the relationships among these four.) Genes, of course, can be the same or different; in monozygotic or dizygotic twins they are all the same or 50% the same, respectively. The shared environment for monozygotic twins begins in the womb where they share the same placenta. After they are born, monozygotic twins are more likely to have more shared experiences (e.g., they are more likely to be dressed in matching outfits) than dizygotic twins, so they have a slightly greater shared environment than their dizygotic peer. Non-shared environments are the unique experiences people have; for twins, this factor is pretty minor, and it carries little power or weight. But, back to the chase….

In contrast, for example, to a famous study by A. Bailey and colleagues from 1995 that showed a very high heritability for Autism (92% of monozygotic twins were concordant for Autism but only 10% of dizygotic twins were concordant), the present study found that genetic heritability accounted for only 37% of the variance in Autism and shared environment factors accounted for 55% of Autism disorders. The findings hold whether Autism is diagnosed more strictly or more broadly; when Professor Hallmayer’s team examined Autism Spectrum Disorder cases rather than more narrowly defined cases, the percentages went up to 38% genetic and 58% shared environment contributions.
Continue reading ‘Is environment > genetics in cause of Autism?’

Sphere: Related Content

Cog mod for PTSD

In the Journal of Behavior Therapy and Experimental Psychiatry, Joanna Kowalik and colleagues reported that their review of studies on the use of cognitivie behavioral therapy for treating posttraumatic stress disorder (PTSD) revealed that cog-mod appears effective in changing raters’ responses on some of the widely used scales of the Child Behavior Checklist. However, the results of their literature review are not as powerful as one might hope, given the small number of studies and substantial variability in the studies themselves.

Abstract

Background and objectives There is no clear gold standard treatment for childhood posttraumatic stress disorder (PTSD). An annotated bibliography and meta-analysis were used to examine the efficacy of cognitive behavioral therapy (CBT) in the treatment of pediatric PTSD as measured by outcome data from the Child Behavior Checklist (CBCL).

Method A literature search produced 21 studies; of these, 10 utilized the CBCL but only eight were both 1) randomized; and 2) reported pre- and post-intervention scores.

Results The annotated bibliography revealed efficacy in general of CBT for pediatric PTSD. Using four indices of the CBCL, the meta-analysis identified statistically significant effect sizes for three of the four scales: Total Problems (TP; ?.327; p = .003), Internalizing (INT; ?.314; p = .001), and Externalizing (EXT; ?.192; p = .040). The results for TP and INT were reliable as indicated by the fail-safe N and rank correlation tests. The effect size for the Total Competence (TCOMP; ?.054; p = .620) index did not reach statistical significance.

Limitations Limitations included methodological inconsistencies across studies and lack of a randomized control group design, yielding few studies for meta-analysis.

Conclusions The efficacy of CBT in the treatment of pediatric PTSD was supported by the annotated bibliography and meta-analysis, contributing to best practices data. CBT addressed internalizing signs and symptoms (as measured by the CBCL) such as anxiety and depression more robustly than it did externalizing symptoms such as aggression and rule-breaking behavior, consistent with its purpose as a therapeutic intervention.

Because they are integrating so few studies it is very difficult to have a sensitive meta-analysis in this case. However, that Professor Kowalik and her collaborators found differences at all is encouraging. I hope they’ll continue to follow this literature. Also, I hope researchers will be using other measures of outcomes and that those other measures will be examined in future integrative literature reviews, too.

Kowalik, J., Weller, J., Venter, J., & Drachman, D. (2011). Cognitive behavioral therapy for the treatment of pediatric posttraumatic stress disorder: A review and meta-analysis. Journal of Behavior Therapy and Experimental Psychiatry, 42, 405-413. doi:10.1016/j.jbtep.2011.02.002

Sphere: Related Content

FC goes to MIT

According to Robert T. Carroll at the Skeptic’s Dictionary, several people associated with facilitated communication have been working with Professor Rosalind W. Picard of the Affective Computing research group at the Massachusetts Institute of Technology (MIT) Media Lab. In “Facilitated Communication Infiltrates MIT’s Media Lab,” Mr. Carroll reports about Professor Picard’s connections with supporters of what he says is now called “supported typing.”

Why would MIT’s Media Lab be involved with something that is clearly a discredited pseudoscience?

MIT’s Media Lab’s involvement with FC goes back several years.

A private FC conference occurred in May 2008 involving Douglas Biklen, Head of the FC Institute, Rosalind Picard, Head of the MIT Affective Computing Group, Margaret Bauman of the Massachusetts General Ladders Program (a long time FC advocate; she tried to get the New England Center to use FC in the early 1990s; she just got $29 Million from Nancy Lurie Marks a major, major FC supporter), Martha Herbert of Harvard Medical (supports the view that autism is a movement disorder, justifying FC)…That meeting seems to have been designed to establish liaisons between FC advocates in the Media Lab, the Ladders Program at Massachusetts General, the Syracuse FC Institute [now the Institute on Communication and Inclusion], and the University of Buenos Aires (i.e., Daniel Orlievsky), and cannot be unconnected to this upcoming event in July.

Mr. Carroll has much more on this. Given the problems with FC, one must wonder what a prestigious institution such as MIT would gain from such a connection. Is it possible that the researchers are legitimately investigating FC?

What about other developments from this lab? How valuable are they? One can’t dismiss them simply by association. Does this bracelet that seems to capture galvanic skin response and feed it wirelessly to computers actually have much value? Tracking GSR across time does look interesting to me. What clinical applications might emerge? Will they be beneficial?

You can read Facilitated Communication Infiltrates MIT’s Media Lab in its entirety on the Skeptic’s Dictionary.

Sphere: Related Content




Bad Behavior has blocked 354 access attempts in the last 7 days.