[POSSIBLE SPAM] Re: Re: Autistic Brains - slower to react to sounds - new study

[Guest guest]

This all goes with RDI theory only, instead of repeating, we give long

processing times. The theory is if you repeat or reword the statement/

question / command, the child has to process that as well.

Sara

bbrowne123 wrote:

>

> could explain why my kid takes a second or two to carry out a

> request.

>

> also, our kids might only be hearing the middle or last part of our

> sentences, good reason to speak slowly and clearly and maybe repeat

> things every so often.

>

> Donna talked about this in her books, how sentences were all

> garbled, she might hear the first and last part but not the middle.

>

>

> >

> > http://in.reuters.com/article/health/idINTRE4B00PI20081201?

> <http://in.reuters.com/article/health/idINTRE4B00PI20081201?>

> > pageNumber=1 & virtualBrandChannel=0

> >

> >

> > Brains of autistic slower to react to sounds: study

> > Mon Dec 1, 2008 9:17pm IST

> > Email | Print | Share| Single Page[-] Text [+]

> >

> >

> >

> > CHICAGO (Reuters) - The brains of autistic children react to sounds

> a

> > fraction of a second slower than those of normal children, which

> may

> > help explain the communication problems associated with autism,

> > researchers said on Monday.

> >

> > " What this does is it provides strong supporting evidence for the

> > emerging theory that autism is a problem of connectivity in the

> > brain, " said , vice chairman of research in the

> > Department of Radiology at Children's Hospital of Philadelphia.

> >

> > and his colleagues had 30 autistic children age 6 to 15

> > listen to a battery of sounds and syllables while monitoring the

> tiny

> > magnetic fields produced by the brain's electrical impulses.

> >

> > The test employed a technique, called magnetoencephalography (MEG),

> > in which a helmet-like device is used to detect and locate brain

> > activity. Only around one hundred devices exist that can monitor

> the

> > tiny magnetic fields, said in a telephone interview.

> >

> > In comparison to the tenth of a second response time in the brains

> of

> > normal children in the study, the autistic children's brains were

> > anywhere from 20 percent to 50 percent slower to react.

> >

> > Since a single syllable in a multisyllable word might take less

> than

> > one-quarter of a second to say, said 1/20th of a second

> extra

> > delay in the response time of the brains of autistic children may

> > hamper their ability to comprehend.

> >

> > " There could be abnormal routing or a lack of connectivity in the

> > brain, " he said in a telephone interview. " It may be like a highway

> > with traffic making it hard to get through. "

> >

> > " We think this (delay) is a signature or a biomarker that could be

> > used to stratify autism patients, " since autism is a spectrum of

> > disorders that afflicts people to vastly different degrees, he said.

> >

> > FEWER CONNECTIONS

> >

> > Microscopic examination of the brain tissue of people with autism

> has

> > shown there may be fewer connections between their brain cells,

> said

> > , who presented his findings at a meeting of the

> Radiological

> > Society of North America.

> >

> > Brain scans performed by the more frequently used magnetic

> resonance

> > imaging or computed tomography are not detailed enough to detect

> such

> > microscopic differences in brain cell connections. Such scans have

> > not found structural or size differences between autistic and

> normal

> > brains.

> >

> > Autism, which is characterized by difficulty interacting with

> others

> > and sometimes repetitive behaviors, occurs in about one in 150 U.S.

> > children, a rate that has climbed since the 1980s.

> >

> > Children are usually diagnosed with autism only after they reach

> age

> > 2 years or older and said the hope is that MEG could

> diagnose

> > children as young as 1 year, so therapy could begin earlier and

> > perhaps be monitored to evaluate the results on the brain.

> >

> > MEG can cost roughly $400 an hour to perform, but it is harmless

> and

> > could become less expensive if more devices were available. MEG is

> > used currently to help locate brain tumors and to diagnose epilepsy.

> >

> > foresees MEG being employed to examine people with

> attention

> > deficit disorder and other mental problems.

> >

> > He said it may also provide researchers with more clues to the

> causes

> > of autism and help solve the dilemma of what is hereditary and what

> > is environmental about the condition.

> >

>

>