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Graeme Wadlow

Investigation of MMR and Andrew Wakefield, by Brian Deer - 0 views

briandeer.com/...lancet-summary.htm

media medical research science mmr_vaccines wakefield Autism ASD

shared by Graeme Wadlow on 04 Jan 12 - Cached
  • Graeme Wadlow on 04 Jan 12
     
    Brian Deer investigates Andrew Wakefield's MMR scare
Tero Toivanen

NDAR - National Database for Autism Research Home Page - 2 views

ndar.nih.gov/ndarpublicweb

autism research data-sharing Autism Spectrum Disorder ASD investigators

shared by Tero Toivanen on 11 Feb 10 - Cached
  • Tero Toivanen on 11 Feb 10
     
    NDAR is a secure bioinformatics platform for scientific collaboration and data-sharing for Autism Spectrum Disorder (ASD) investigators.
Tero Toivanen

Atypical empathic responses in adolescents with ag...[Biol Psychol. 2009] - PubMed Result - 0 views

www.ncbi.nlm.nih.gov/...18940230

psychol aggressive conduct disorder CD

shared by Tero Toivanen on 26 Feb 09 - Cached
  • Tero Toivanen on 26 Feb 09
     
    Atypical empathic responses in adolescents with aggressive conduct disorder: a functional MRI investigation.
Tero Toivanen

Mutations in 3 Genes Linked to Autism Spectrum Disorders - 1 views

www.theautismnewswire.com/NewsITems.aspx

genes linked autism spectrum disorders research

shared by Tero Toivanen on 08 Apr 12 - No Cached
  • Mutations in 3 Genes Linked to Autism Spectrum Disorders : Mutations in three new genes have been linked to autism, according to new studies including one with investigators at Mount Sinai School of Medicine
  • The findings, in a trio of papers revealing new genetic targets in autism, are published in the April 4th online issue of the journal Nature.
  • The genes with mutations identified in the studies – CHD8, SNC2A, and KATNAL2 – were discovered with a new state-of-the-art genomics technology known as exome sequencing, where all protein coding regions of the genome, called the exome, are analyzed.
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  • The researchers say that with further characterization of the genes and sequencing of genes in thousands of families, they will be able to develop novel therapeutics and preventive strategies for autism.
  • The institutions involved in this study sequenced data from more than 500 families (both parents and the affected child), examining the protein-enriched areas of the genome.
  • “When the same mutations are found in multiple affected children and none are found in children without autism, we believe that we have identified mutations that collectively affect a higher proportion of individuals with autism,” said Dr. Buxbaum. “Our studies revealed that the proteins encoded by the mutated genes interact with each other far more than expected, demonstrating significantly greater connectivity than would be expected.”
Tero Toivanen

An Outbreak of Autism, or a Statistical Fluke? - NYTimes.com - 0 views

www.nytimes.com/...17auti.html

shared by Tero Toivanen on 17 Mar 09 - Cached
  • A former Minneapolis school official said Somalis made up 25 percent of children in preschool classes for those with severe autism.
  • Since the cause of autism is unknown, the authorities in Minnesota say it is hard to know even what to investigate.
  • A small recent study of refugees in schools in Stockholm found that Somalis were in classes for autistic children at three times the normal rate.
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  • Antivaccine activists are campaigning among them, which worries public health officials, especially because some families go back and forth to Somalia, where measles is still a significant cause of childhood death, according to Unicef.
  • Last year, she said, 25 percent of the children in preschool classes offering the most intensive treatment had Somali parents, while only about 6 percent of public school enrollment is Somali. Dr. Daniel S. McLellan, a pediatrician, said that when he began practicing at Children’s Hospital six years ago, he was struck by how many autistic Somali children he saw.
Tero Toivanen

Research adds to evidence that autism is a brain 'connectivity' disorder - 1 views

www.physorg.com/news182327031.html

autism research autism spectrum autism spectrum disorders brain miswiring

shared by Tero Toivanen on 10 Jan 10 - Cached
  • Now, researchers led by Mustafa Sahin, MD, PhD, of Children's Department of Neurology, provide evidence that mutations in one of the TSC's causative genes, known as TSC2, prevent growing nerve fibers (axons) from finding their proper destinations in the developing brain.
  • Sahin and colleagues showed that when mouse neurons were deficient in TSC2, their axons failed to land in the right places.
  • Further investigation showed that the axons' tips, known as "growth cones," did not respond to navigation cues from a group of molecules called ephrins.
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  • Although the study looked only at retinal connections to the brain, the researchers believe their findings may have general relevance for the organization of the developing brain. Scientists speculate that in autism, wiring may be abnormal in the areas of the brain involved in social cognition.
  • there are either too many connections or too few connections between different parts of the brain
  • Tero Toivanen on 10 Jan 10
     
    Research evidence suggesting that autism spectrum disorders, which affect 25 to 50 percent of TSC patients, result from a miswiring of connections in the developing brain, leading to improper information flow.
Tero Toivanen

Auditory Integration Training and Facilitated Communication for Autism -- Committee on ... - 0 views

aappolicy.aappublications.org/...431

AIT FC Auditoy Integration Training Facilitated Communication autism

shared by Tero Toivanen on 22 May 09 - Cached
  • For example, Smith et al16 studied 10 individuals with autism specifically to investigate the effects of facilitator influence and level of assistance on the results of FC. Each subject had six sessions, two with no help, two with partial assistance, and two with full assistance. Results showed that there were no cases of correct responses from the subject unless the facilitator knew the correct response. In addition, numerous responses were typed by the subjects to stimuli that were shown only to the facilitator, and not the subject. Similar results have been found by Regal et al17 and Eberlin et al.1
  • One complication of the use of FC has been the allegation of abuse, particularly sexual abuse, that has been obtained from individuals through the use of FC against third persons. This has generated adverse publicity and caused severely negative consequences for families who may be unsure of the validity of the allegations. Because of legal mandates regarding reports of child abuse, this becomes a critical issue for teachers and pediatricians alike, who may find the credibility of the report highly questionable but are obligated to fulfill their legal responsibilities. Margolin20 notes that although more than 50 such allegations have resulted in legal proceedings, most have terminated before trial. The ethical dilemmas posed by FC for practitioners have been reviewed by Jacobson et al.8
  • It is important for the pediatrician to obtain current data on both AIT and FC as they become available. Until further information is available, the use of these treatments does not appear warranted at this time, except within research protocols.
  • Tero Toivanen on 22 May 09
     
    This statement reviews the basis for two new therapies for autism---auditory integration training and facilitative communication. Both therapies seek to improve communication skills. Currently available information does not support the claims of proponents that these treatments are efficacious. Their use does not appear warranted at this time, except within research protocols.
Tero Toivanen

Facilitated Communication - 0 views

www.cqcapd.state.ny.us/...fcnatal.htm

facilitated FC facilitated communication

shared by Tero Toivanen on 30 Mar 09 - Cached
  • Facilitators who work closely with individuals with autism, as well as other developmental disabilities (e.g., mental retardation, cerebral palsy, etc.) report that individuals with little or no language are fully expressive about life experiences, thoughts, feelings, choices, preferences, and decisions, when allowed to communicate through facilitation.
  • Biklen and other proponents of facilitated communication have been strongly opposed to objective, empirical validity testing. They maintain that testing undermines the individual's confidence, places him or her under pressure, and introduces negativism that destroys the communicative exchange.
  • Rather, under the surface of autism is a person with full cognitive faculties. Smith and Belcher (1993) indicate that much of this suggests a basic unwillingness on the part of families, professionals, and caregivers to accept the individuals with disabilities for what they are, thus diminishing the value of the individual in a way that the disability itself could not have.
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  • Thompson (1993) describes facilitated communication as a classic example of the self-fulfilling prophecy. The facilitator wants to believe that the person with a severe cognitive and language disability is actually of normal to superior intellectual ability. Parents especially want to believe that a way has been found to finally unlock the door to their real son or daughter.
  • In short, people want facilitated communication to work.
  • Advocates of facilitated communication often respond to naysayers, "It can't hurt to try it." Biklen agrees, "It is not harmful to teach people to communicate through pointing." However, he qualifies his claim with the caveat that "it can be harmful if the facilitator over interprets, does not monitor the person's eyes, facilitates when the person is looking away, is not sensitive to the possibility of guiding the person, and asks leading rather than clarifying questions."
  • Some argue that "false communication" may distort beliefs, understanding, and rehabilitative approaches to persons with autism and other developmental disabilities.
  • Additionally, facilitated communication in the past few years has been the source of many contested abuse allegations, usually allegedly reported by an individual with very limited unassisted communication skills against a family caregiver or caregivers.
  • There are at least 50 legal cases in the U.S. involving allegations of sexual abuse produced through facilitated communication (Berger, 1994). Several such cases have already occurred in Australia, and some have arisen in Europe (Green, 1992).
  • With the exception of three empirical studies (Intellectual Disability Review Panel, 1989; Calculator and Singer, 1992; and Velazquez (in press)) which provide preliminary validation of facilitated communication, most of the support for the validity of facilitated communication is based on anecdotal reports.
  • Unfortunately, validity questions surround anecdotal reports of facilitated communication. In general, these reports lack the controls necessary to rule out experimenter biases, reliability concerns, and threats to validity (Cummins and Prior, 1992; Jacobsen, Eberlin, Mulick, Schwartz, Szempruch, and Wheeler, 1994).
  • Although Biklen (1990) admits that facilitator influence is a real possibility, facilitated communications are typically reported as though they are the words of the person with a disability.
  • Without exception, these empirical studies have questioned the authenticity of the communication as truly coming from the individual versus the facilitator.
  • Interdisciplinary Party Report (1988) and the Intellectual Disability Review Panel (1989) both of which examined the source of facilitated communications produced by persons in Australia, and found strong evidence that responses obtained through facilitation were influenced by the facilitator.
  • Gina Green, Director of Research for the New England Center for Autism and Associate Scientist for the E.K. Shriver Center for Mental Retardation, Inc., has reviewed over 150 cases where empirical testing was performed and cites 15 independent conduct evaluations involving 136 individuals with autism and/or mental retardatiion who were alleged to have been taught to communicate via facilitated communication. In none of the cases were investigators able to confirm facilitated communication by the 136 individuals.
  • Tero Toivanen on 30 Mar 09
     
    Facilitated Communication by Natalie Russo [First Published in Quality of Care Newsletter, Issue62, January-February 1995]
Tero Toivanen

Research Unearths New Treatments for Autism - 2 views

www.apa.org/...pi4.html

autism research TEACCH Young Autism Project Lovaas DIR ABA PRT Pivotal Response Training social engagement system middle ear music intensity

shared by Tero Toivanen on 01 Jul 09 - Cached
  • The Utah researchers found that children receiving a combination of the two treatments (Lovaas-type training at school and TEACCH methods at home) showed three to four times greater progress on all outcome tests than did children who received only the school-based treatment. That study was reported in the Journal of Autism and Developmental Disorders (Vol. 28, No. 1, p. 2532).
  • Researchers in Washington, D.C., are comparing a discrete trial training approach with a "developmental, individual-difference, relationship based" (DIR) approach, says child psychiatrist Stanley Greenspan, MD, professor of psychiatry at George Washington University Medical School.
  • Psychologist Robert Koegel, PhD, at the University of California, Santa Barbara, and his colleagues are attempting to tailor a standard treatment to the specific needs of an autistic child and family. The standard treatment is called pivotal response training
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  • An initial retrospective study is comparing two groups of 20 children initially diagnosed with autism who were functioning well after two or more years of treatment, either with a discrete trial training approach or the DIR approach. The study aims to determine if treatment differences lead to subtle differences in outcome, for example, in terms of flexibility, emotional range, creativity and richness of the child's inner life. Investigators are planning to follow this research with a prospective, randomized, more rigorous study of the two approaches.
  • "In our previous studies we found out that it looks like you can't just deliver a standard treatment to autistic kids, that there's so much variability among the children that what works for one child doesn't work for another child," he says. "Our hypothesis is that...unless you individualize treatment, you're not going to get the best effect."
  • Researchers at the University of Maryland are testing an intervention to trigger children's "social engagement system," which includes behaviors such as listening, looking, facial expressions and vocalizations that support social interaction, says psychologist Stephen Porges, PhD. The treatment is designed to improve autistic children's ability to interact with others, thereby making them more receptive to traditional therapies.
  • The intervention is based on the theory that tensing the middle ear muscles enables people to pick out the human voice from lower frequency sounds in the environment, Porges says. Treatment involves exercising middle ear muscles by playing music that has been altered to include only frequencies associated with the human voice, which improves one's ability to listen to human voices. This, in turn, stimulates the entire social engagement system, Porges says. About 80 percent of 50 children with autism or other behavioral problems receiving this treatment via five 45-minute sessions in a double blind, randomized controlled study showed marked improvements in listening, language and other communication skills.
  • In a report last year in the Journal of Autism and Developmental Disorders (Vol. 28, No. 1, p. 15-23) evaluating an intensive home-based discrete trial training intervention, Stephen Sheinkopf, PhD, of the University of Miami and Bryna Siegel, PhD, of the University of California, San Francisco, noted that children receiving an average of only 21 hours per week of treatment showed gains in IQ comparable to those achieved by children receiving 32 hours per week. The intensity question remains an issue of importance for the autism community. "If we need 40 hours a week, fine," says psychologist Geraldine Dawson, PhD, of the University of Washington. "But if you only need 25, you have to realize that 40 hours is a tremendous burden not only financially, but on families and on the child."
  • Tero Toivanen on 01 Jul 09
     
    Several treatments, and combinations of treatments, are under intense study.
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