Washington D.C., May 8: The prime time for brain development in a child's life is the first year, where the infant spends most of the time asleep. It is the time when neural connections form and sensory memories are encoded.
However, when sleep is disrupted, as occurs more often among children with autism, brain development may be affected, too.
New research led by the University of Washington finds that sleep problems in a baby's first 12 months may not only precede an autism diagnosis but also may be associated with altered growth trajectory in a key part of the brain, the hippocampus.
The study, which was published in the American Journal of Psychiatry, researchers report that in a sample of more than 400 taken of 6- to 12-month-old infants, those who were later diagnosed with autism were more likely to have had difficulty falling asleep.
It also states that this sleep difficulty was associated with altered growth trajectories in the hippocampus.
"The hippocampus is critical for learning and memory, and changes in the size of the hippocampus have been associated with poor sleep in adults and older children.
As many as 80 per cent of the children with autism spectrum disorder have sleep problems," said Annette Estes, director of the UW Autism Center and senior author of the study.
"In our clinical experience, parents have a lot of concerns about their children's sleep, and in our work on early autism intervention, we observed that sleep problems were holding children and families back," added Estes, who is also a UW professor of speech and hearing sciences.
"It could be that altered sleep is part-and-parcel of autism for some children. One clue is that behavioural interventions to improve sleep don't work for all children with autism, even when their parents are doing everything just right. This suggests that there may be a biological component to sleep problems for some children with autism," said Estes.
To consider links among sleep, brain development, and autism, researchers at the IBIS Network looked at MRI scans of 432 infants, surveyed parents about sleep patterns, and measured cognitive functioning using a standardized assessment.
At the outset of the study, infants were classified according to their risk for developing autism: Those who were at higher risk of developing autism -- about two-thirds of the study sample -- had an older sibling who had already been diagnosed.
Infant siblings of children with autism have a 20 per cent chance of developing autism spectrum disorder -- a much higher risk than children in the general population.
In the current study, 127 of the 432 infants were identified as "low risk" at the time the MRI scans were taken because they had no family history of autism.
They later evaluated all the participants at 24 months of age to determine whether they had developed autism. Of the roughly 300 children originally considered "high familial risk," 71 were diagnosed with autism spectrum disorder at that age.
Problems with sleep were more common among the infants later diagnosed with an autism spectrum disorder, as were larger hippocampi. No other subcortical brain structures were affected, including the amygdala, which is responsible for certain emotions and aspects of memory, or the thalamus, a signal transmitter from the spinal cord to the cerebral cortex.
The authors note that while parents reported more sleep difficulties among infants who developed autism compared to those who did not, the differences were very subtle and only observed when looking at group averages across hundreds of infants.
Sleep patterns in the first years of life change rapidly as infants transition from sleeping around the clock to a more adult-like sleep/wake cycle. Until further research is completed, Estes said, it is not possible to interpret challenges with sleep as an early sign of increased risk for autism.
Comments
Is she not liable to be arrested for making such HATE statements and offering rewards for killing somebody. Is the police sleeping?
He should be crazy, kidnapping her and for what ?
She is shouting to get the government support to start a new business, like ramdev established patanjali company by using politics mantra. \Ghanda hain par dhanda hain\".
People are using Zakir Bhai s name to get the international attention on them. You will find some Non-Muslims and Muslims struggler against Zakir Bhai.
Zakir Bhai name is enough to get the bread and butter for all strugler."
She is fit to be Feku / dakus wife....
WHAT A HORRIBLE WOMEN
WHY DON'T YOU DO IT YOURSELF, YOU CAN SAVE 50 LAKH AND GET 15 LAKH FROM MR'S = 110%'S. YOU CAN BECOME A HERO.
WHY THIS CRAZY WOMEN, COMMUNAL HARMONY DESTROYER LEFT OUT TO STAY OUT OF BARS?
WHY THE GOVT BECOMING DEAF AND DUMB ON HER STATEMENT AND OFFERING MONEY TO KILL SOME HUMAN?
IN WHAT WAY AND PRACTICE SHE BECOME A SADHVI?
Whos is Sadhvi Prachi......Desh Bakth?
Manga kayyali Manikya Kotre ide gathi
We Love n support DR.ZN
Now every Peace loving Hindu should stand united against her and denounce her terrorizing speech. Say boldly she does not represent any peace loving Hindus.
Hinduism does not reflect in her. If people like her continues to live, they then spoil the Hinduism or the religion what they represent.
If the government is fair, they should take immediate action by arresting her and prosecuting under law of the land.
Now there is no any surprise for any peace loving person declares a bounty of 1crore for head brainless head, if the government does not take any action against her.
Oh peace loving Hindus and Muslims be united, live together follow whatever your religion says, but please use your valued brain for understanding the true teaching of God.
Look at her .........like shit....she represents. A religion...?
Again the drain is open.......may be because of rain...
Need some good man to please her....so she is satisfied with something.....
Dear Majoosi sect please identity yourself & Hussaini Tiger organization address before placing 15 lakh on Dr Naik. secondly implement your Ayatullah fatwa & award on Rushdi.
Sadhvi is on drug. She has no capacity to give birth to baby how can she behead someone like Dr. Naik. Too funny.
We need organization to file criminal case against these organizations & individuals scums in the court.
A Killer / Murderer in Sadhvi's clothing?
What are the criminal charges for supari killing?
Can police arrest her and put behind the bars.
VHP and its allies are feeding and nurturing few lunatic creatures in its terror camps and utilize them in such cirumstances which becomes mockery every time they tries. Arnav Goswami must be a frustrated joker at this moment.
look at her face... looks like an ugly pig.... thiti kaaladalli naayi tara bogalabeke???? I don know whether ths pig knjows d speeling of d word TErrorist,,, forget abt d meaning.....
This is th lab test for BJP govt hope Indian home minister n law ministers will respect our constitution and they will take firm action against this crap sadvi. Trace out, from where she got fund to announce such big amount.Either may rss or israely grours are supporting to spoil peace in INDIA.
Such persons should not alive in India.should hang in public.
JAI HIND!
Lie and lie more. Taqiiyya artists all of you
Now what shall we call this? Peace lovers? Is this not terrorism. Wher is arnab and party now, dont they have guts to question or interrogate her why she is promoting terror and hatred in peoples mind and encourage killing??!!!!
See her ugly face ..did she ever seen 10k rupee in her life ..first spend some amount in beauty parlour.
Zakir Naik s head is more costlier than kohinoor diamond. just by wearing orange dress an uncultured woman will not become sadhvi.
There are many scholars got defeated by zakir bhai in debate. They have tried all their scholars after getting defeat they are using terrorism weopons against him.
It shows their impotency .
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