Skip to main content

Home/ Autism Teachers/ Group items tagged expressions

Rss Feed Group items tagged

Tero Toivanen

NIMH · Our brains are made of the same stuff, despite DNA differences - 1 views

  • “Having at our fingertips detailed information about when and where specific gene products are expressed in the brain brings new hope for understanding how this process can go awry in schizophrenia, autism and other brain disorders,” said NIMH Director Thomas R. Insel, M.D.
  • Among key findings in the prefrontal cortex:Individual genetic variations are profoundly linked to expression patterns. The most similarity across individuals is detected early in development and again as we approach the end of life.Different types of related genes are expressed during prenatal development, infancy, and childhood, so that each of these stages shows a relatively distinct transcriptional identity. Three-fourths of genes reverse their direction of expression after birth, with most switching from on to off.Expression of genes involved in cell division declines prenatally and in infancy, while expression of genes important for making synapses, or connections between brain cells, increases. In contrast, genes required for neuronal projections decline after birth – likely as unused connections are pruned.By the time we reach our 50s, overall gene expression begins to increase, mirroring the sharp reversal of fetal expression changes that occur in infancy.Genetic variation in the genome as a whole showed no effect on variation in the transcriptome as a whole, despite how genetically distant individuals might be. Hence, human cortexes have a consistent molecular architecture, despite our diversity.
  • Among key findings:Over 90 percent of the genes expressed in the brain are differentially regulated across brain regions and/or over developmental time periods. There are also widespread differences across region and time periods in the combination of a gene’s exons that are expressed.Timing and location are far more influential in regulating gene expression than gender, ethnicity or individual variation.Among 29 modules of co-expressed genes identified, each had distinct expression patterns and represented different biological processes. Genetic variation in some of the most well-connected genes in these modules, called hub genes, has previously been linked to mental disorders, including schizophrenia and depression.Telltale similarities in expression profiles with genes previously implicated in schizophrenia and autism are providing leads to discovery of other genes potentially involved in those disorders.Sex differences in the risk for certain mental disorders may be traceable to transcriptional mechanisms. More than three-fourths of 159 genes expressed differentially between the sexes were male-biased, most prenatally. Some genes found to have such sex-biased expression had previously been associated with disorders that affect males more than females, such as schizophrenia, Williams syndrome, and autism.
  • ...2 more annotations...
  • Our brains are all made of the same stuff. Despite individual and ethnic genetic diversity, our prefrontal cortex shows a consistent molecular architecture.
  • Males show more sex-biased gene expression. More genes differentially expressed (DEX) between the sexes were found in males than females, especially prenatally. Some genes found to have such sex-biased expression had previously been associated with disorders that affect males more than females, such as schizophrenia, Williams syndrome, and autism.
  •  
    Our brains are all made of the same stuff. Despite individual and ethnic genetic diversity, our prefrontal cortex shows a consistent molecular architecture. 
Tero Toivanen

Autism Research Blog: Translating Autism: Expressive communication in children with sev... - 0 views

  • Given that the rate of elicited expressive communication in the present study is much lower than the suggested rate of teacher prompt, it can be assumed that teachers of students with autism do not actively promote their students’ expressive communication.
  • The results also indicate that verbal prompts and a combination of verbal prompts and modeling were the most commonly used instruction. However, simple (non-combined) prompts were most effective in eliciting a communicative response with kids with the most severe autism. But most surprisingly, physical prompts did not seem to be as effective as verbal prompts, which may also explain why verbal prompts were use significantly more by these teachers.
  • In sum, the study has implications for the type of techniques that are effective in eliciting communicative responses in children with severe autism. In this study simple verbal prompts and modeling were the most effective strategy to elicit communicative responses in these children.Chiang, H. (2009). Naturalistic observations of elicited expressive communication of children with autism: An analysis of teacher instructions Autism, 13 (2), 165-178 DOI: 10.1177/1362361308098513
  •  
    In sum, the study has implications for the type of techniques that are effective in eliciting communicative responses in children with severe autism. In this study simple verbal prompts and modeling were the most effective strategy to elicit communicative responses in these children.
Amanda Kenuam

Learning Expression & Socialization Skills through Art - 0 views

  •  
    "special education, students, SPED, art, socialization, expression, emotional development"
Graeme Wadlow

Cultural Confusions Show that Facial Expressions Are Not Universal - 0 views

  •  
    Current Biology - Cultural Confusions Show that Facial Expressions Are Not Universal
J B

British DVD Takes Aim At Autism: Cartoons Focus on Facial Expressions - washingtonpost.com - 0 views

  •  
    Happy, worried, surprised, ashamed: Children with autism can find it difficult to discern from facial expressions how another person is feeling. A team of researchers at Britain's Cambridge University has created an animated DVD called "The Transporters" to help children with autism learn this...
Tero Toivanen

iPad Apps for Autistic Students - 14 views

  •  
    The following iPad apps are designed to augment self-expression among children with autism spectrum disorders and other cognitive impairments.
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.
  • ...3 more annotations...
  • 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.
  •  
     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

Asperger Square 8: Autistic Awareness: Empathy - 0 views

  •  
    Autistic people have feelings! They just express feelings differently.
Tero Toivanen

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

  • 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.”
  •  
    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.
Tero Toivanen

What Do New Genetic Findings Mean to Families with Autism? - 0 views

  • reply from lead researcher Hakon Hakonarson:
  • The variant we detected at the 5p14 locus (common variant) has been present for a long time in the genome (most likely since man moved out of Africa) and this region is highly conserved between species which means that it is regulating gene expression and gene function (the CHD10 gene being the most critical one).
  • We know that the association is strongest in those individual who have the greatest abnormalities in social skills/interactions and those that show least interest in interactions; we have not detected any other characteristics yet, but we keep working on it.
  • ...2 more annotations...
  • Once we learn about this difference, we can then look for medications that block the consequences of the variant and once we make sure they are safe, we can then start testing these new medications in children who are at risk of developing autism, with the objective of preventing autism (i.e., avoid breakdown in connections between nerves and abnormality in brain connectivity).
  • Response: Yes, all of them could be tested in utero; we have identified 10 new variations (9 rare and 1 common) and we have replicated (and confired) four other once that were previously published (neurexin 1, contactin 4, 15q11 and 22q11). However, we do not have a yes or no answer as to whether the fetus will be autistic -- but if we are testing a fetus in an autistic family the value of the test is much higher.
Tero Toivanen

Yale Study Suggests Children with Autism Watch for the Wrong Visual Clues - 0 views

  • Individuals with autism spectrum disorders (ASD) tend to stare at people's mouths rather than their eyes. Now, an NIH-funded study in 2-year-olds with the social deficit disorder suggests why they might find mouths so attractive: lip-sync—the exact match of lip motion and speech sound.
  • Such audiovisual synchrony preoccupied toddlers who have autism, while their unaffected peers focused on socially meaningful movements of the human body, such as gestures and facial expressions.
  • "Typically developing children pay special attention to human movement from very early in life, within days of being born. But in children with autism, even as old as two years, we saw no evidence of this," explained Ami Klin, Ph.D., of the Yale Child Study Center, who led the research. "Toddlers with autism are missing rich social information imparted by these cues, and this is likely to adversely affect the course of their development."
  • ...1 more annotation...
  • In theory, this finding could lead to educational techniques that could help very young children with autism build their social referencing skills. This could be hugely important for children with autism, since their challenges with "reading" social cues create so many problems as they enter school, interact with peers, and begin to navigate social relationships.
  •  
    Individuals with autism spectrum disorders (ASD) tend to stare at people's mouths rather than their eyes. Now, an NIH-funded study in 2-year-olds with the social deficit disorder suggests why they might find mouths so attractive: lip-sync-the exact match of lip motion and speech sound.
Tero Toivanen

Facilitated Communication - 0 views

  • 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.
  • ...12 more annotations...
  • 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.
  •  
    Facilitated Communication by Natalie Russo [First Published in Quality of Care Newsletter, Issue62, January-February 1995]
Tero Toivanen

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

  • 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.
  • ...11 more annotations...
  • 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.
  •  
    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

Research Unearths New Treatments for Autism - 2 views

  • 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
  • ...5 more annotations...
  • 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."
  •  
    Several treatments, and combinations of treatments, are under intense study.
1 - 17 of 17
Showing 20 items per page