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Tero Toivanen

Autism Research Blog: Translating Autism: Autism, neurofeedback , and the processing of... - 0 views

  • Children with autism show increased reaction time and unique brain wave patters during tasks that include novel distracters.
  • Children with autism show increased reaction time and unique brain wave patters during tasks that include novel distracters.
  • The participants completed an Odd-Ball task. In this task, the participants are asked to press a key when they see the target letter ( "X" ) on a computer screen. This target letter is presented 25% of the trials. For 50% of the trials a common distracter (the letter "O") is presented instead. For the remaining 25%, a set of novel distracters are presented (different symbols). The researchers recorded the reaction time, accuracy, and brain electrical functioning during the task.
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  • The results showed that participants with autism were slower to press on the key when the target X was presented than typically developing peers. However, the groups did not differ in accuracy of responding.
  • That is, both groups were equally accurate in responding to the X target, but the group with autism showed a slower patter of responses. The group with autism also showed a different pattern of brain activation when confronted with the novel distracters. Their differences were observed in both hemispheres, but were stronger in the right frontal regions. The pattern of responses observed (longer latencies and higher amplitudes) suggest greater effort when processing novel stimuli. This finding is intriguing because the brain response patterns to the other stimuli (target X and the common distracter O) were identical between the groups. These results suggest that the group with autism had difficulty processing and disengaging from novel distracting stimuli.
  • In neurofeedback, the person receives real-time feedback on their brain functioning and is taught how to progressively modify their responses. However, the debate regarding the effectiveness of neurofeedback is ongoing as the research is limited and highly contradictory.
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    Children with autism show increased reaction time and unique brain wave patters during tasks that include novel distracters.
Tero Toivanen

Autism Research Blog: Translating Autism: Amygdala, autism and clinical impairment: Whe... - 0 views

  • The amygala serves a critical function in emotion recognition and processing, and thus it has been implicated in the neurophysiology of autism. For example, individuals with autism have been found to display atypical amygdala growth processes from childhood into adolescence (see for example Nacewiz et al., 2006. Archives of General Psychiatry, 63,12).
  • The Amygdale's bilateral biochemical functioning was obtained via magnetic resonance spectroscopy. Four metabolites were measured: N-acetyl aspartate (NAA), creatine/Phosphocreatine (Cre), choline (Cho), and myoinositol (ml).
  • The authors did not find any differences in the concentrations of any of the metabolites when comparing the HFA and the control groups
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  • However, among the individuals with HFA, NAA was significantly associated with communication impairments, as measured by the ADI. In addition, Cre and NAA were associated with restrictive interests, and Cre alone was associated with social difficulties. The results therefore, indicate that those with the lowest concentrations of these metabolites tended to have more severe clinical symptoms as reported by the ADI.
  • The results of this study provide support for the need to conduct examinations that go beyond simple group comparisons.
  • key metabolites, while observed at normative levels, play a key role in the clinical presentation of the disorder.
  • presence of normative functioning in a particular domain or brain process (when compared to typical peers) does not necessarily indicate that such domain is not implicated in the phenomenology of the condition.
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    Amygdala, autism and clinical impairment: When group comparisons are not enough. The results of this study provide support for the need to conduct examinations that go beyond simple group comparisons. In this case, the authors found no differences in any of the metabolites between the two groups, which could easily lead one to conclude that such metabolites may not play a role in autism. Yet, the results were strong in indicating that key metabolites, while observed at normative levels, play a key role in the clinical presentation of the disorder.
Tero Toivanen

Why parents swear by ineffective treatments for autism. - By Sydney Spiesel - Slate Mag... - 0 views

  • Since most of the ways we diagnose autism are based on behavior, we can't rely on biological, structural, or chemical findings to determine if a treatment is working. We primarily measure success based on a patient's change, or lack thereof, in behavior.
  • The behavioral changes produced by the few effective treatments make life in social settings (including the home) possible, but we have no idea whether they have any effect on the underlying cause (or causes) of autism or whether they even make severely affected patients feel better.
  • One method intended to help, "facilitated communication," is based on the idea that a sensitive facilitator will hold the hand of a patient over a kind of Ouija board. She will then help the patient respond to questions by sensing his intention and helping guide his hand to spell out answers. Rigorous studies have shown that the spelled-out answers come from the unconscious (or, worse, the conscious) mind of the facilitator. Nonetheless, the practice is still in use, and I know parents who are utterly convinced that it is valid and useful. Frankly, something important did happen when facilitated communication was introduced to my patients: They improved, they brightened, they became more social and more interactive, and they seemed, somehow, happier, even though facilitated communication didn't actually translate their thoughts into words. I'll come back to "why" in a minute.
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  • The techniques of sensory integrative treatment include rubbing or brushing skin (using graded and tactile stimulation), balance exercises, exposure to soft music, and the use of weighted clothes, among other things. Does it work? Most of the research has been of very poor quality, but, in virtually all of the recent studies, sensory integration doesn't seem to be any more beneficial than any other treatment.
  • It looks as if environmental alteration, especially if coupled with increased attention and perhaps expectation, often leads to change in human behavior. It's called the "Hawthorne effect."
  • People respond—mostly favorably—to positive attention and interaction. The question we need to ask about all the treatments available for autism is whether they actively shape and change brain development and thus treat the underlying condition, as many proponents believe, or whether the benefits (if they are present at all) are simply another example of the Hawthorne effect.
  • Perhaps my patients who became more alive and more interactive after facilitated communication was introduced changed because their families and caretakers were taking them more seriously as people who might have an inner life—people worthy of attention and interaction.
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    People respond-mostly favorably-to positive attention and interaction. The question we need to ask about all the treatments available for autism is whether they actively shape and change brain development and thus treat the underlying condition, as many proponents believe, or whether the benefits (if they are present at all) are simply another example of the Hawthorne effect.
Tero Toivanen

Harvey Karp: Cracking the Autism Riddle: Toxic Chemicals, A Serious Suspect in the Auti... - 0 views

  • One group of substances of particular concern is a ubiquitous family of hormone twisting compounds, known as endocrine disrupting chemicals (EDCs).
  • Our exposure to EDCs is no mere theoretical concern. In 2000, a Centers for Disease Control (CDC) study found detectable phthalates in 99.9% of adults including women of childbearing age.
  • there is evidence that even minuscule amounts of these chemicals -- levels commonly present in a woman's body -- may disturb fetal brain development during highly sensitive periods of neural development known as windows of vulnerability.
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  • Our increasing exposure to EDCs lends support to a new hypothesis about the cause of autism, called the "extreme male theory." This theory, proposed by Dr. Simon Baron-Cohen and colleagues, speculates that autism is caused by something changing a fetus' hormonal balance that then leads to over-masculinization of the developing brain. Could that "something" be the slurry of hormone-altering chemicals we're exposed to every day? Are EDCs the reason autism-type disorders are 4-9 times more common in boys? (Vaccine side effects never show such lopsided impact on boys versus girls...a glaring fact that is totally ignored by those promoting the vaccine theory of autism.)
  • Here is where the very interesting link to EDCs comes into play: EDCs often act as weak estrogens and estrogen feminizines the body, but in a fetus' developing brain estrogen actually has the opposite effect...it causes masculinization.
  • The NCS will establish over one hundred study centers across the US to test the blood of 100,000 newborns for scores of synthetic chemicals, including many EDCs. (Workers have already begun going door-to-door enrolling pregnant moms into the program.) For the next 21 years, scientists will carefully follow the children's health, comparing the body burden of chemicals at birth to diseases developed later in life.
  • Within 3-4 years, we expect to have enough data accumulated to start detecting what chemicals might be linked to autism.
  • Beside the NCS, I support other new studies to look at: 1) the autism risk in vaccinated vs. unvaccinated kids; 2) the metabolism of vaccine ingredients (like aluminum, added to make shots work better), 3) more accurate determinations of the true incidence of autism.
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    The presence of EDCs in women of child-bearing age is especially worrisome. That is because there is evidence that even minuscule amounts of these chemicals -- levels commonly present in a woman's body -- may disturb fetal brain development during highly sensitive periods of neural development known as windows of vulnerability.
Tero Toivanen

Autism Vaccines - Mercury and Autism Vaccines - 1 views

  • The type of mercury used in thimerosal is generally cleared from the body within six weeks, which in theory would render it harmless. But according to those researchers who believe that the preservative causes autism, babies born during that 20-year window were injected with many times the "safe" level as determined by the FDA -- and some, they feel, were genetically incapable of clearing the doses of mercury from their bodies. Mercury is, in fact, a neurotoxin, and the theory is that the recent leap in autism diagnoses can be directly tied to thimerosal.
  • In 2004, the Institute of Medicine undertook a comprehensive review of all the published literature on thimerosal and autism and concluded that the available evidence demonstrate that there was no link. The CDC launched a series of studies that examined the relationship between the incidence of autism and the amount of mercury a child received in the first 6 months of life and also found no relationship. Although all published credible studies have found no link between thimerosal and autism, some continue to be unconvinced.
  • At present, the thimerosal controversy continues, even though the removal of thimerosal from vaccines has not resulted in lower rates of autism diagnoses.
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    At present, the thimerosal controversy continues, even though the removal of thimerosal from vaccines has not resulted in lower rates of autism diagnoses. Parents who continue to be concerned should be aware that thimerosal has now been removed from most vaccines -- and thimerosal-free vaccines are available across the board.
Tero Toivanen

Eide Neurolearning Blog: Why Boys Need Alternatives with Reading and Writing - 0 views

  • If you give girls and boys language tasks, most girls will process the information in the same way (in a specialized language area)
  • help them with word storage and retrieval
  • But for boys, sensitivity to the modality of how words are presented means that an extra steps need to be taken to match words that are picked up by listening and words that are read on the printed page. No wonder dyslexia is much more common in boys - the separate system means that the sight and sound of words are learned as distinct processes.
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  • As a result, verbal competence may be strong in one domain (oral speech for instance), but be weak in another (reading).
  • because boys require two areas and a matching of visual-auditory inputs, impairment in one system may cause the whole language coordination process to fail.
  • The visual-auditory gap may also be why some boys may need to read word-for-word outloud or to themselves (i.e. not silently read) in order to fully comprehend or remember the story.
  • Some careful consideration needs to made of instructional implications for boys given some of these new discoveries. Learning by listening and learning by reading are not synonymous; route-congruent factors(listening - oral presentation, reading - written response) may need to be considered when a learning gap or frank underachievement is seen, and an insistence on the availability of auditory-visual supports (reading along with books-on-tape, detailed handouts for lecture courses) should be a requirement of every classroom.
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    Boys require two areas and a matching of visual-auditory inputs, impairment in one system may cause the whole language coordination process to fail.
Tero Toivanen

12 Tips to Setting up an Autism Classroom « Principal Kendrick - 6 views

  • In a world that’s ever changing, routine and structure provide great comfort to a child on the autism spectrum.  Define routines clearly. 
  • Activities are successful when they’re broken into small steps.
  • Make sure children know what to do if they finish ahead of time.  Typically, children with autism do not use free time productively; therefore strive to have as little downtime between activities as possible.
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  • 2. Use visuals
  • Remember to keep explanations simple and short about each picture or concentration will wane.   Give written instructions instead of verbal whenever you can.  Highlight or underline any text for emphasis.
  • People with autism like order and detail.  They feel in control and secure when they know what to expect
  • Picture schedules are even more powerful because they help a student visualize the actions.
  • Make sure you have this schedule in a very visible place in your classroom and direct the students’ attention to it frequently, particularly a few minutes before you begin the next activity.
  • Written schedules are very effective for good readers.  These can also be typed up and placed on a student’s desk.
  • 4. Reduce distractions
  • Many people with autism find it difficult to filter out background noise and visual information.  Children with autism pay attention to detail.  Wall charts and posters can be very distracting. 
  • Try and seat children away from windows and doors. 
  • 5. Use concrete language
  • Always keep your language simple and concrete.   Get your point across in as few words as possible. 
  • Avoid using idioms.
  • Give very clear choices and try not to leave choices open ended.  You’re bound to get a better result by asking “Do you want to read or draw?” than by asking “What do you want to do now?”
  • 6. It’s not personal
  • Children with autism are not rude.  They simply don’t understand social rules or how they’re supposed to behave.
  • NEVER, ever, speak about a child on the autism spectrum as if they weren’t present
  • Despite the lack of reaction they sometimes present, hearing you speak about them in a negative way will crush their self esteem.
  • 7. Transitions
  • Children on the autism spectrum feel secure when things are constant.  Changing an activity provides a fear of the unknown.  This elevates stress which produces anxiety
  • Reduce the stress of transitions by giving ample warning
  • Using schedules helps with transitions too as students have time to “psyche themselves up” for the changes ahead.
  • People can be slow when they are learning a new skill until they become proficient
  • Encourage your students to ask each other for help and information
  • Making decisions is equally important and this begins by teaching students to make a choice.  Offer two choices. 
  • When giving a directive or asking a question, make sure you allow for extra processing time before offering guidance.  Self help skills are essential to learn
  • Never underestimate the power of consistency.
  • Avoid this temptation and make sure you allow ample time before you abandon an idea.  Remember that consistency is a key component of success.  If you’re teaching a student to control aggression, the same plan should be implemented in all settings, at school and at home.
  • 9. Rewards before consequences
  • We all love being rewarded and people with autism are no different.  Rewards and positive reinforcement are a wonderful way to increase desired behavior
  • If possible, let your students pick their own reward so they can anticipate receiving it.
  • There are many reward systems which include negative responses and typically, these do not work as well.
  • Focusing on negative aspects can often lead to poor results and a de-motivated student.  When used correctly, rewards are very powerful and irresistible
  • Every reward should be showered in praise.  Even though people on the spectrum might not respond typically when praised, they enjoy it just as much as you!
  • 10. Teach with lists
  • Teaching with lists sets clear expectations.  It defines a beginning, middle and an end.
  • People on the autism spectrum respond well to order and lists are no exception.  Almost anything can be taught in a list format.
  • While typical people often think in very abstract format, people on the spectrum have a very organized way of thought.  Finding ways to work within these parameters can escalate the learning curve.    
  • 11. Creative teaching
  • It helps to be creative when you’re teaching students with autism.  People on the spectrum think out of the box and if you do too, you will get great results.
    • Tero Toivanen
       
      Exactly!
  • Often, people with autism have very specific interests.  Use these interests as motivators.
    • Tero Toivanen
       
      This is how I work! It's works!
  • Another great strategy to use is called “Teaching with questions”.  This method keeps students involved, focused and ensures understanding.
  • Another great way of teaching is by adding humor to your lessons.  We all respond to humor.
    • Tero Toivanen
       
      When you feel well, your students feel well also and learn better!
  • 12. Don’t sweat the small stuff
  • The final goal is for children to be happy and to function as independently as possible.
  • Don’t demand eye contact if a student has trouble processing visual and auditory information simultaneously.
    • Tero Toivanen
       
      It may even be painful for the student... There are research about this issue.
  • By correcting every action a person does, you’re sending a message that they’re not good enough the way they are.  When making a decision about what to correct, always ask yourself first, “Will correcting this action help this person lead a productive and happy life?”
Tero Toivanen

YouTube - Alternative Medical Treatments for Autism - 0 views

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    Dr. Susan Levy's excellent presentation about Complementary and Alternative Medical Treatments for Children with Autism.
J B

iPrompts - 0 views

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    Prompts is a software application for the iPhone and iPod Touch. Designed especially for parents, special educators & therapists, iPrompts allows for the presentation of customized picture schedules, "social stories," countdown timers and choice offerings to those with developmental and language impairments. The visual supports packed into iPrompts are used to help get those with special needs through the day. Costs $75.
Tero Toivanen

CNN Programs - Presents - 0 views

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    Facilitated communication studies (CNN) -- Below are summaries of selected studies on facilitated communication compiled by CNN.
Tero Toivanen

Researchers from the CHUM Research Centre (CRCHUM) have iden - 0 views

  • The results show for the first time the role of the SYN1 gene in autism, in addition to epilepsy, and strengthen the hypothesis that a deregulation of the function of synapse because of this mutation is the cause of both diseases
  • until now, no other genetic study of humans has made this demonstration.
  • The different forms of autism are often genetic in origin and nearly a third of people with autism also suffer from epilepsy.
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  • Although mutations in other genes involved in the development of synapses (the functional junction between two neurons) have previously been identified, this mechanism has never been proved in epilepsy in humans until the present study.
  • The results of the present study were published in the latest online edition of Human Molecular Genetics.
Tero Toivanen

Facing Autism in New Brunswick: Evidence of Common Genes Linking Autism Spectrum Disord... - 0 views

  • genetic mutations in the SHANK2 gene, partially responsible for linking nerve cells,  and variants in the number of gene copies that were common to patients with autism and patients with mental retardation.
  • the same mutation can be present in an autistic patient with normal intelligence and in a mentally impaired patient
  • Our findings further link common genes between ASD and intellectual disability.
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    Link between Autism and intellectual disability?
Tero Toivanen

Childhood Disintegrative Disorder, Autism/PDD: Yale Child Study Center - 0 views

  • Childhood Disintegrative Disorder This rather rare condition was described many years before autism (Heller, 1908) but has only recently been 'officially' recognized.
  • The condition develops in children who have previously seemed perfectly normal. Typically language, interest in the social environment, and often toileting and self-care abilities are lost, and there may be a general loss of interest in the environment. The child usually comes to look very 'autistic', i.e., the clinical presentation (but not the history) is then typical of a child with autism.
  • A special educator in Vienna, Theodore Heller, proposed the term dementia infantilis to account for the condition.
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  • in most cases after even very extensive testing no specific medical cause for the condition is found. As with autism, children who suffer from this condition are at increased risk for seizures.
  • evidence suggest that it arises as a result of some form of central nervous system pathology.
  • Childhood disintegrative disorder is perhaps 10 times less common than more strictly defined autism
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    Childhood Disintegrative Disorder This rather rare condition was described many years before autism (Heller, 1908) but has only recently been 'officially' recognized.
Tero Toivanen

NeuroLogica Blog » Dr. Laureys Admits Facilitated Communication Failure - 1 views

  • This is where the story gets interesting, and where it became an international controversy. Enter Linda Wouters – a speech therapist who uses facilitated communication (FC). She claimed that after months of training she could communicate with Houbens by sensing the subtle movements of his right hand, which he could use to direct her across a computer screen keyboard.
  • FC, unfortunately, is pure pseudoscience. It was introduced in the late 1980s as a wonderful new method for communicating with children with cognitive disorders, on the assumption that they were more verbally than mentally impaired. Many therapists were convinced, and many parents were overjoyed as their previously non-communicative children starting writing poetry expressing their love for their parents. (And there was also a dark side as some children, through FC, started reporting physical and sexual abuse by parents and caretakers.)
  • When people got around to actually testing FC scientifically it turned out, rather unequivocally, that all the communication was being done subconsciously by the facilitator – a phenomenon called the ideomotor effect. They were not just supporting the hand of their client, they were directing it. Well-designed studies showed that the facilitator was always doing all the communication. FC then shrank to a fringe phenomenon – but its adherents would not give up, and FC continues to this day (even sometimes in courtroom testimony), hoodwinking the unawares and having to be debunked all over again and again.
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  • Regarding Rom Houben video showing Wouters performing FC with Houben clearly showed that he could not be doing the communication. In one video Houben was not even looking at the keyboard, and may not have even been awake. But in every video Wouters was moving his hand across the keyboard at unbelievable speeds – not even a neurologically intact person could direct another to keystrokes with such speed an accuracy by just moving one finger.
  • Laureys has now carried out those tests, and his results hold that it wasn’t Houben doing the writing after all. The tests determined that he doesn’t have enough strength and muscle control in his right arm to operate the keyboard. In her effort to help the patient express himself, it would seem that the speech therapist had unwittingly assumed control… In the more recent test, Houben was shown or told a series of 15 objects and words, without a speech therapist being present. Afterward, he was supposed to type the correct word — but he didn’t succeed a single time.
  • It is truly a scandal that FC is still around. Like homeopathy, therapeutic touch, and many similar medical pseudosciences – their persistence is not a failure of science, which has adequately shown them to be nothing but illusions, but rather of collective rationality.
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     It is truly a scandal that FC is still around. Like homeopathy, therapeutic touch, and many similar medical pseudosciences - their persistence is not a failure of science, which has adequately shown them to be nothing but illusions, but rather of collective rationality.
Tero Toivanen

Real Autism - What Is Real Autism - 0 views

  • Here are answers from a top expert, Dr. Susan Levy of the Children's Hospital of Philadelphia.
  • Dr. Levy says, while about 80% of autism is idiopathic (of unknown cause), there are at present many known causes of autism including FAS, rubella, Fragile X Syndrome, and more. In addition, according to a a report published in Pediatrics in 2009 entitled "Prevalence of parent-reported diagnosis of autism spectrum disorder among children in the US, 2007," as many as 40% of children who received an autism spectrum disorder at some point in their lives are no longer diagnosable on the autism spectrum.
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    Here are answers from a top expert, Dr. Susan Levy of the Children's Hospital of Philadelphia.
Tero Toivanen

facilitated communication - The Skeptic's Dictionary - Skepdic.com - 0 views

  • The American Psychological Association has issued a position paper on FC, stating that "Studies have repeatedly demonstrated that facilitated communication is not a scientifically valid technique for individuals with autism or mental retardation" and describing FC as "a controversial and unproved communicative procedure with no scientifically demonstrated support for its efficacy."
  • Frontline Program on facilitated communication:
    • Tero Toivanen
       
      Here is the video about Facilitated Communication (FC). If you have something to do with FC, I think you should watch it.
  • Parents are grateful to discover that their child is not hopelessly retarded but is either normal or above normal in intelligence. FC allows their children to demonstrate their intelligence; it provides them with a vehicle heretofore denied them.
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  • Facilitated Communication therapy began in Australia with Rosemary Crossley. The center for FC in the United States is Syracuse University, which houses the Facilitated Communication Institute (FCI) in their School of Education.
  • A very damaging, detailed criticism was presented on PBS's "Frontline", October 19, 1993. The program was repeated December 17, 1996, and added that since the first showing, Syracuse University has claimed to have done three studies which verify the reality and effectiveness of FC, while thirty other studies done elsewhere have concluded just the opposite.
  • Furthermore, FC clients routinely use a flat board or keyboard, over which the facilitator holds their pointing finger. Even the most expert typist could not routinely hit correct letters without some reference as a starting point.
  • Facilitators routinely look at the keyboard; clients do not. The messages' basic coherence indicates that they most probably are produced by someone who is looking at the keyboard.
  • Anyone familiar with Helen Keller, Stephen Hawking or Christy Brown knows that blindness, deafness, cerebral palsy, multiple sclerosis, amyotrophic lateral sclerosis (ALS), or physical or neurological disorders, do not necessarily affect the intellect. There is no necessary connection between a physical handicap and a mental handicap. We also know that such people often require an assistant to facilitate their communication. But what facilitators do to help the likes of a Hawking or a Brown is a far cry from what those in the facilitated communication business are doing.
  • But the vast majority of FC clients apparently are mentally retarded or autistic. Their facilitators appear to be reporting their own thoughts, not their patient's thoughts. Interestingly, the facilitators are genuinely shocked when they discover that they are not really communicating their patient's thoughts. Their reaction is similar to that of dowsers and others with "special powers" who, when tested under controlled conditions, find they don't have any special powers at all.
  • It is interesting that the parents and other loved ones who have been bonding with the patient for years are unable to be facilitators with their own children.
  • And when the kind strangers and their patients are put to the test, they generally fail. We are told that is because the conditions made them nervous. These ad hoc excuses sound familiar; they sound like the complaints of parapsychologists.
  • Skeptics think the evidence is in and FC is a delusion for the most part. It is also a dangerous delusion. Critics have noted a similarity between FC therapy and repressed memory therapy: patients are accusing their parents and others of having sexually abused them. Facilitators are taught that something like 13% of their clients have been sexually abused. This information may unconsciously influence their work.
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    You find here a very about Important Video about Facilitated Communication (FC). The American Psychological Association has issued a position paper on FC, stating that "Studies have repeatedly demonstrated that facilitated communication is not a scientifically valid technique for individuals with autism or mental retardation" and describing FC as "a controversial and unproved communicative procedure with no scientifically demonstrated support for its efficacy."
Tero Toivanen

News from the Associated Press - newsjournalonline.com - 0 views

  • Leo Lytel was diagnosed with autism as a toddler. But by age 9 he had overcome the disorder. His progress is part of a growing body of research that suggests at least 10 percent of children with autism can "recover" from it - most of them after undergoing years of intensive behavioral therapy.
  • She presented research this week at an autism conference in Chicago that included 20 children who, according to rigorous analysis, got a correct diagnosis but years later were no longer considered autistic.
  • Skeptics question the phenomenon, but University of Connecticut psychology professor Deborah Fein is among those convinced it's real.
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  • Previous studies have suggested between 3 percent and 25 percent of autistic kids recover. Fein says her studies have shown the range is 10 percent to 20 percent.
  • But even after lots of therapy - often carefully designed educational and social activities with rewards - most autistic children remain autistic. Recovery is "not a realistic expectation for the majority of kids," but parents should know it can happen, Fein said.
  • The children in Fein's study, which is still ongoing, were diagnosed by an autism specialist before age 5 but no longer meet diagnostic criteria for autism. The initial diagnoses were verified through early medical records.
  • The researchers are also doing imaging tests to see if the recovered kids' brains look more like those of autistic or nonautistic children.
  • Imaging scans also are being done to examine brain function in formerly autistic kids.
  • Results from those tests are still being analyzed.
  • Most of the formerly autistic kids got long-term behavior treatment soon after diagnosis, in some cases for 30 or 40 hours weekly.
  • Many also have above-average IQs and had been diagnosed with relatively mild cases of autism. At age 2, many were within the normal range for motor development, able to walk, climb and hold a pencil.
  • Significant improvement suggesting recovery was evident by around age 7 in most cases, Fein said.
  • None of the children has shown any sign of relapse. But nearly three-fourths of the formerly autistic kids have had other disorders, including attention-deficit problems, tics and phobias; eight still are affected.
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    Leo Lytel was diagnosed with autism as a toddler. But by age 9 he had overcome the disorder. His progress is part of a growing body of research that suggests at least 10 percent of children with autism can "recover" from it - most of them after undergoing years of intensive behavioral therapy.
Tero Toivanen

NeuroLogica Blog » The Genetics of Autism - 0 views

  • What this means is that there is likely to be a complex set of many factors that contribute to ASD - not one single cause.
  • The same exact situation is true for other entities, like schizophrenia and attention deficit disorder (ADD).
  • One difference, however, is that schizophrenia and ADD likely represent changes to particular parts of the brain, while autism is likely due to changes in the global architecture of the brain.
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  • Getting back to the genetics of autism, current models are therefore consistent with what is being found when the genetics of autism is researched - researchers are finding many genes that predispose to autism in a subset of cases but no single or simple universal cause. At present, 133 different gene variants have been linked to autism.
  • This new research, conducted by Dr. Hakon Hakonarson of the Children’s Hospital of Philadelphia, is a genome wide analysis involving about 10,000 individuals.
  • The results are especially significant because the variants lie between two genes, called CDH9 and CDH10, which are known to play an important role in forming nerve connections in the brain.
  • The gene variants that correlated with ASD are for proteins that are involved in the process of neurons forming connections with each other. There is already other lines of evidence that suggest what is different in ASD brains is a decrease in the amount of interconnectedness and communication among neurons. It is therefore likely no coincidence that this study found genetic correlations for proteins involved with neuronal connections.
  • This also is compatible with the finding that many separate genes are potentially involved with ASD - for there are many separate genes and processes involved with forming and maintaining neuronal connections.
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    A new genome-wide analysis of families with autism has found significant gene associations, adding to the growing evidence for strong genetic contribution to autism.
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