Hyperlexia difference to AS/HFA
btbnnyr
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Hyperlexia is not well-studied. To researchers, it is defined as precocious word-reading plus poor reading comprehension. The other traits in the list were added by the person who made the website. They are some characteristics of some children with hyperlexia. Since many children with hyperlexia are autistic, the traits on the list are autistic traits. I have read an older research study in which non-autistic MR children with precocious word-reading and poor comprehension were also considered hyperlexic. Some researchers consider hyperlexia to be a superability or splinter skill associated with autism, like perfect pitch is associated with autism.
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whirlingmind
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Everywhere I read about hyperlexia it includes autistic traits as part of the symptoms, I don't think what you said is therefore correct, e.g.
http://www.nldline.com/hyperlexia.htm
Hyperlexia has also been defined as "advanced word-recognition skills in individuals who otherwise have pronounced cognitive, social, and linguistic handicaps" (Nation, 1999). Often, a child with hyperlexia can be a very visual learner and has difficulty interacting socially. However they can also have a great deal of perceptual problems. Signs of hyperlexia usually do not begin to emerge until after 18 to 24 months of age (www.hyperlexia.org). A child has been developing normally until this point, but then begins to regress. It is almost as though the child misses the developmental step of learning the meaning of language and thus, he learns to read words first, then later he learns what those words mean. Many children with hyperlexia tend to emerge as self-taught readers at an age below the norm. Also, they have a physical need for reading, a sort of obsession. This is quite similar to the variety of fixations that many other children with disorders experience. Usually the fixation does not define the disorder, but in this case it is a significant indicator that distinguishes the child from having other developmental disorders. If the child does not have books, he will try to decode signs or symbols. If he is given even less, he may form the shapes and symbols with his own fingers. But, he is not learning language this way, nor is he learning any subject that he may be reading. He just has a need to read.
Also, here is a university study:
http://www.yale.edu/eglab/pdf/ELGReprint.pdf
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btbnnyr
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Hyperlexia is often associated with autism, as in some autistic children are hyperlexic. In studies, some non-autsitic MR children were also considered hyperlexic. In studies, autistic children with hyperlexia are compared with non-autistic MR children with hyperlexia and both clinical groups are matched with typical children with similar word-reading abilities. Compared to the typical children with similar word-reading abilities, the autistic and mr children have poorer reading comprehension.
I learned to read around two, but didn't have good reading comprehension until nine or so. By ten or eleven, I had high word-reading skill and high reading comprehension.
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whirlingmind
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I was hyperlexic myself, but I'm on the spectrum anyway.
What does the 'MR' stand for?
I just can't see how any of the hyperlexic children were not considered autistic if they have all the traits of autism that I have listed, which are, according to the research and information I have found, also traits of hyperlexia itself.
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btbnnyr
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MR is mentally ret*d.
Hyperlexia is ill-defined, no consensus on what it should be considered, a disability or superability.
If you read studies about hyperlexia, there is no consensus on the other traits associated with it, whether strong this kind or that kind of memory or specific social deficits. The only consensus is high word-reading early and usually self-taught + low reading comprehension. The other traits are similar to autistic traits, because some autistic children have hyperlexia, so the anecdotal descriptions are based on these children.
I have autism and hyperlexia. Some children have autism without hyperlexia. Some children have AS and hyperlexia, and some have AS without hyperlexia.
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Drain and plane and grain and blain your brain, and then again,
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Hyperlexia doesn't have an "official" definition, it isn't a diagnostic code in DSM or ICD.
I think I've read almost everything available online regarding hyperlexia. The most comprehensive information on it I've found is a slide deck from Phyllis Kupperman which is available by registering for a continuing ed course on linguisystems (I'd post a link but I haven't posted 5 posts so I can't).
She reviews a bunch of different definitions of hyperlexia that were used in different studies. She says in her speech therapy practice they use it to recognize kids with a certain learning style. They then use teaching methods that emphasize written language, rote memorization, and so on to help those kids learn.
If you google you can also find an article "Hyperlexia III: separating 'autistic-like' behaviors from autistic disorder" by Darold Treffert in which he proposes that there are three types of hyperlexia: precocious kids with no autism-like traits; kids with autism; and kids with autism-like traits which go away later. This "three types" theory is cited in other places on the internet as if it were more canonical than it is, but in fact it's only in this one paper, that I have found.
Personally I would suspect that rather than three neat types there's a continuum. (How could it be otherwise?)
Some of the "hyperlexia III" kids might be kids who are 98th percentile on autism-like traits, while a diagnosis requires 99th percentile, something like that. So those kids would have lots of autism-like traits but simply aren't severe enough to meet the ADOS/DSM threshold. Perhaps others are similar to the kids in that recent "optimal outcome" study. Who knows... this stuff is not super well-understood.
whirlingmind
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I know they must have a cut off point, but the list of autistic traits allocated to hyperlexia don't seem that they could be too mild to be considered full autism.
It's just so contradictory, I'd like to see the descriptions and studies of NTs with hyperlexia. They clearly need to do more studies!
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Last edited by whirlingmind on 11 Mar 2013, 6:35 pm, edited 1 time in total.
It definitely needs more research. My son is hyperlexic and probably just around the ASD borderline somewhere. We will see how he grows up eventually (and see how he does on the ADOS in the short term). I was an early reader as a child as well and also probably around the borderline somewhere. For both of us you can make a list of traits but it's a question of severity (and the judgment and beliefs of the clinician, and random factors).
It's certainly possible to have some of the strengths and weaknesses of ASD without making the cutoff. Surely 98th percentile on autism-like traits is more like the 99th percentile than like the 50th.
