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Tero Toivanen

New Theory Of Autism Suggests Symptoms Or Disorder May Be Reversible - 0 views

www.sciencedaily.com/...090401145312.htm

autism new theory brain

shared by Tero Toivanen on 02 Apr 09 - Cached
  • the brains of people with autism are structurally normal but dysregulated, meaning symptoms of the disorder might be reversible.
  • autism is a developmental disorder caused by impaired regulation of the locus coeruleus, a bundle of neurons in the brain stem that processes sensory signals from all areas of the body.
  • The new theory stems from decades of anecdotal observations that some autistic children seem to improve when they have a fever, only to regress when the fever ebbs.
  • ...11 more annotations...
  • This study documented that autistic children experience behavior changes during fever.
  • Einstein researchers contend that scientific evidence directly points to the locus coeruleus–noradrenergic (LC-NA) system as being involved in autism. "The LC-NA system is the only brain system involved both in producing fever and controlling behavior," says co-author Dominick P. Purpura, M.D., dean emeritus and distinguished professor of neuroscience at Einstein.
  • The locus coeruleus has widespread connections to brain regions that process sensory information. It secretes most of the brain's noradrenaline, a neurotransmitter that plays a key role in arousal mechanisms, such as the "fight or flight" response. It is also involved in a variety of complex behaviors, such as attentional focusing (the ability to concentrate attention on environmental cues relevant to the task in hand, or to switch attention from one task to another). Poor attentional focusing is a defining characteristic of autism.
  • "What is unique about the locus coeruleus is that it activates almost all higher-order brain centers that are involved in complex cognitive tasks," says Dr. Mehler.
  • autism, the LC-NA system is dysregulated by the interplay of environment, genetic, and epigenetic factors
  • They believe that stress plays a central role in dysregulation of the LC-NA system, especially in the latter stages of prenatal development when the fetal brain is particularly vulnerable.
  • a higher incidence of autism among children whose mothers had been exposed to hurricanes and tropical storms during pregnancy.
  • autistic children, fever stimulates the LC-NA system, temporarily restoring its normal regulatory function. "This could not happen if autism was caused by a lesion or some structural abnormality of the brain," says Dr. Purpura.
  • future of autism treatment probably lies in drugs that selectively target certain types of noradrenergic brain receptors or, more likely, in epigenetic therapies targeting genes of the LC-NA system.
  • If the locus coeruleus is impaired in autism, it is probably because tens or hundreds, maybe even thousands, of genes are dysregulated in subtle and complex ways," says Dr. Mehler. "The only way you can reverse this process is with epigenetic therapies, which, we are beginning to learn, have the ability to coordinate very large integrated gene networks."
  • "You can't take a complex neuropsychiatric disease that has escaped our understanding for 50 years and in one fell swoop have a therapy that is going to reverse it — that's folly. On the other hand, we now have clues to the neurobiology, the genetics, and the epigenetics of autism. To move forward, we need to invest more money in basic science to look at the genome and the epigenome in a more focused way."
  • Tero Toivanen on 02 Apr 09
     
    the brains of people with autism are structurally normal but dysregulated, meaning symptoms of the disorder might be reversible.
Tero Toivanen

Autistic Aphorisms: Intelligence, Genius, and Autism - 0 views

autisticaphorisms.blogspot.com/...ligence-genius-and-autism.html

aphorisms intelligence autism genius Pythagoras Plato Aristotle Archimedes Newton Gauss Einstein

shared by Tero Toivanen on 30 Mar 09 - Cached
  • Professor James Flynn has incorporated an interesting sidebar into his book What is Intelligence? In it he lists his seven choices for Western civilization’s greatest minds: Pythagoras, Plato, Aristotle, Archimedes, Newton, Gauss, and Einstein.
  • Hundreds of research teams, maybe even thousands by now, have so convinced themselves that intelligence must originate from inside our skulls, have so convinced themselves that only within networks of cranial neurons can be found the secrets to humanity’s growing mental capacity, that all have managed to overlook completely the far more plausible alternative—the one existing right before our very eyes.
  • It is time to reconsider that conventional wisdom, time to regard genius with a different set of eyes; for genius is not a function of greater intelligence, genius is the description of how intelligence grows.
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  • Look at the content of any intelligence test—language, arithmetic, patterns, designs. What we measure with the aid of those I.Q. booklets are not the abilities we inherited from out our animal past, but instead their exact counterpart; we measure only those skills the species has been adding throughout all its history since. In some sense, an intelligence test measures the modernness of an individual; an intelligence test measures an individual’s ability to appropriate for himself the same set of skills the species has been appropriating as a whole—skills that do not find their origin in our biological nature, but instead owe their existence to the strange, brewing mixture of non-biological pattern, structure and form that has been rapidly taking shape all around us.
  • The unusual characteristics of humanity’s transformational individuals are not the result of their genius, they are genius’s prerequisite
  • But counter to prevailing wisdom, there are many autistic individuals—most likely a majority—who do make substantial progress by means of an alternative perceptual course, a course that allows them not only to navigate meaningfully their surrounding world, but also to assimilate, if somewhat awkwardly and belatedly, to the human species itself (and thereby explaining how autism, estimated to be present in nearly one percent of the human population, could go entirely unrecognized until as recently as sixty-five years ago).
  • all autistic individuals must crystallize their existence by means of this alternative perceptual course—it becomes, in essence, autism’s most salient feature.
  • The unusual behaviors and interests of autistic children—lining up toys, staring at ceiling fans, twirling, flapping hands repeatedly, fascination with knobs, buttons, switches, letters, shapes and digits, watching the same video again and again, singing the same song over and over—these activities betray a form of perception completely unlike that of most other children, a perception noticeably absent in social and biological focus, but also noticeably drawn to symmetry, repetition and pattern.
  • The unusual routines of autistic children are the natural, indeed the expected, mode of expression for a form of perception engaged primarily by the structural aspects of the non-social, non-biological world.
  • Autistic individuals would have been the first to notice the inherent structure contained in the natural world—the geometry of plants, the isomorphisms of natural objects, the logic of the celestial seasons—only they would have had motivation to embrace such form, only they would have had the need to perceive nature’s symmetry, repetition and pattern in order to form their cognitive grounding.
  • We know only bits and pieces about the four Greeks on Professor Flynn’s list, but filling in with the traits from the list’s more modern members, we can reasonably summarize all the unifying characteristics: late- or strange-talking, socially awkward, irascible, obsessed with structure, compelled by form, unusually—not necessarily greatly—intelligent.
  • The continuing medicalization of autism, the insistent demonization of autism’s spontaneous effect—these carry the danger of an unforeseen consequence. For the cure of autism will not be the end of a tragic brain disorder; autism’s eradication will not see the passing of a troubling mental disease. The removal of autism from the entire human species will produce only an ironic solution to the mystery of our expanding human intelligence, it will produce the ignoble end to the Flynn effect.
  • When confronted by data that runs counter to our accustomed way of seeing things, we as humans have but two choices: we can try to explain the results away, or we can adjust our perception of the experienced world. The former choice paves the all-too-common road of modern academic science; the latter, as described above, walks the more promising path of genius.
  • Autism is not a mental illness, not a brain disorder, it is instead the source of humanity’s changing perception of its experienced world; it is, with care and understanding, genius’s fertile soil.
  • Tero Toivanen on 30 Mar 09
     
    Autism is not a mental illness, not a brain disorder, it is instead the source of humanity's changing perception of its experienced world; it is, with care and understanding, genius's fertile soil.
Tero Toivanen

Autistic Aphorisms: Enhanced Perception in Savant Syndrome - 0 views

autisticaphorisms.blogspot.com/...eption-in-savant-syndrome.html

autism savant perception structure creativityn patterns syndrome

shared by Tero Toivanen on 24 Apr 09 - Cached
  • Mottron team did not shy away from suggesting that the features of savant syndrome could serve as an entryway into understanding all forms of autistic perception and cognition, savant like or not. This effectively removed savant syndrome from being the freak sideshow of autism and elevated it to the status of being a key element for understanding the condition.
  • it is orientation towards structure and pattern that determines the essential characteristics of autistic perception and cognition.
  • Not weak central coherence. Not damaged executive functioning. Not a missing theory of mind. Not a masculinized brain. Orientation to pattern and structure is the key to understanding autistic perception—an approach that is productive towards autistic interests and abilities, not destructive, as is the case for nearly every other competing theory. The Mottron team's emphasis on pattern-oriented perception in autistic individuals is a helpful step forward in understanding autistic individuals as they truly are.
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  • all the success stories related inside the pages of EPSS are accompanied by fortuitous exposure to various forms of structured material, clearly marking out the most promising path for autistic development and growth.
  • And of course these discussions fly in the face of the current clamor for early intervention in autism, where it would seem the goal is always to yank the autistic child away as early as possible from his or her preferred method of engaging the world, and substitute instead an intense bombardment of socially based indoctrination, hoping to turn the child around while there is still time for the “malleable” brain to be re-molded.
  • In my opinion, it is no mere coincidence that the very same elements that stand at the core of the Mottron team's affirmative description of autistic perception and cognition are also the very same elements that stand at the core of humanity’s sudden departure off the savannah and leap into the modern world.
  • Admittedly, a thorough discussion of such a topic would be much too large for inclusion in an academic research paper such as EPSS, but the fact that the Mottron team does not mention, or even hint at, the connection between the features of autistic perception and the features of human cognitive history leave it unclear whether the team has ever considered such a connection.
  • At this point in time, the Mottron team seems to be the only autism research team heading in a positive and enlightening direction—a direction that is constructive for autistic individuals everywhere—and I look forward to all their future contributions.
Tero Toivanen

Autism disorders might be reversible. | - I Teach Autism.com - - 0 views

www.iteachautism.com/...-or-disorder-may-be-reversible

autism fever epigenetics locus coeruleus brain neurobiology LC-NA system theory Albert Einstein College

shared by Tero Toivanen on 08 Jun 09 - Cached
  • Scientists at Albert Einstein College of Medicine of Yeshiva University have proposed a sweeping new theory of autism that suggests that the brains of people with autism are structurally normal but dysregulated, meaning symptoms of the disorder might be reversible.
  • The central tenet of the theory, published in the March issue of Brain Research Reviews, is that autism is a developmental disorder caused by impaired regulation of the locus coeruleus, a bundle of neurons in the brain stem that processes sensory signals from all areas of the body.
  • The new theory stems from decades of anecdotal observations that some autistic children seem to improve when they have a fever, only to regress when the fever ebbs.
  • ...8 more annotations...
  • Einstein researchers contend that scientific evidence directly points to the locus coeruleus–noradrenergic (LC-NA) system as being involved in autism. “The LC-NA system is the only brain system involved both in producing fever and controlling behavior,” says co-author Dominick P. Purpura, M.D., dean emeritus and distinguished professor of neuroscience at Einstein.
  • The locus coeruleus has widespread connections to brain regions that process sensory information.
  • It is also involved in a variety of complex behaviors, such as attentional focusing (the ability to concentrate attention on environmental cues relevant to the task in hand, or to switch attention from one task to another).
  • “What is unique about the locus coeruleus is that it activates almost all higher-order brain centers that are involved in complex cognitive tasks,” says Dr. Mehler.
  • Drs. Purpura and Mehler hypothesize that in autism, the LC-NA system is dysregulated by the interplay of environment, genetic, and epigenetic factors (chemical substances both within as well as outside the genome that regulate the expression of genes). They believe that stress plays a central role in dysregulation of the LC-NA system, especially in the latter stages of prenatal development when the fetal brain is particularly vulnerable.
  • Drs. Purpura and Mehler believe that, in autistic children, fever stimulates the LC-NA system, temporarily restoring its normal regulatory function.
  • the future of autism treatment probably lies in drugs that selectively target certain types of noradrenergic brain receptors or, more likely, in epigenetic therapies targeting genes of the LC-NA system.
  • “You can’t take a complex neuropsychiatric disease that has escaped our understanding for 50 years and in one fell swoop have a therapy that is going to reverse it — that’s folly. On the other hand, we now have clues to the neurobiology, the genetics, and the epigenetics of autism. To move forward, we need to invest more money in basic science to look at the genome and the epigenome in a more focused way.”
  • Tero Toivanen on 08 Jun 09
     
    Scientists at Albert Einstein College of Medicine of Yeshiva University have proposed a sweeping new theory of autism that suggests that the brains of people with autism are structurally normal but dysregulated, meaning symptoms of the disorder might be reversible.
Team RxPinoy

Alternative Choices: 80 Percent Autism Divorce Rate Debunked in First-Of-Its Kind Scien... - 0 views

alternativechoicespa.blogspot.com/...ism-divorce-rate-debunked.html

autism

shared by Team RxPinoy on 17 Aug 10 - Cached
  • Team RxPinoy on 17 Aug 10
     
    "a study by researchers from Kennedy Krieger Institute in Baltimore found that a child's autism has no effect on the family structure."
Tero Toivanen

Enhanced perception in savant syndrome: patterns, structure and creativity - Philosophi... - 1 views

rstb.royalsocietypublishing.org/...1385.abstract

autism savant syndrome perception creativity pattern recognition redintegration

shared by Tero Toivanen on 24 Apr 09 - Cached
  • utistic perception is characterized by: enhanced low-level operations; locally oriented processing as a default setting; greater activation of perceptual areas during a range of visuospatial, language, working memory or reasoning tasks; autonomy towards higher processes; and superior involvement in intelligence.
  • We now propose that enhanced detection of patterns, including similarity within and among patterns, is one of the mechanisms responsible for operations on human codes, a type of material with which savants show particular facility.
  • A second mechanism, related to but exceeding the existing concept of redintegration, involves completion, or filling-in, of missing information in memorized or perceived units or structures.
Tero Toivanen

Neuronal Circuits In Autism Can Be Reversed - 0 views

www.medicalnewstoday.com/...250295.php

autism research

shared by Tero Toivanen on 17 Sep 12 - No Cached
  • When the production of neuroligin-3 in the mice was reactivated, the nerve cells reduced the production of the glutamate receptors to a normal level and the structural defects in the brain typical for autism were gone. Consequently, these glutamate receptors could be targeted in the development of drugs that could stop autism from developing or even reverse it.
  • Tero Toivanen on 17 Sep 12
     
    "A specific dysfunction in neuronal circuits has been identified, by Professors Peter Scheiffele and Kaspar Vogt at the Biozentrum of the University of Basel, that results from autism. The researchers also discovered a way to reverse these neuronal changes. They believe that their findings, published in the journal Science, will have a great effect in drug development for treating autism."
Tero Toivanen

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

kendrik2.wordpress.com/...setting-up-an-autism-classroom

autism special education special needs students SPED ASD:teaching classroom ASD:educators tips

shared by Tero Toivanen on 30 Dec 10 - Cached
  • 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.
  • ...47 more annotations...
  • 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
      Tero Toivanen on 30 Dec 10
       
      Exactly!
  • Often, people with autism have very specific interests.  Use these interests as motivators.
    • Tero Toivanen
      Tero Toivanen on 30 Dec 10
       
      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
      Tero Toivanen on 30 Dec 10
       
      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
      Tero Toivanen on 30 Dec 10
       
      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

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

www.slate.com/2215076

autism ineffective treatments treatment

shared by Tero Toivanen on 02 Apr 09 - Cached
  • 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.
  • ...4 more annotations...
  • 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.
  • Tero Toivanen on 02 Apr 09
     
    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.
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