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
This is a advance education era. Most of the grown up childrens are well capabe to understand what is good what us bad. What is God's Creation and what is not. In our Inpendence country every one have right to choose their choice.
Orthere no need to interfere or they have right to do any forcefull act fo
Convert the rest or to do forcefull Ghar Wapsi.
Trust street mongers will stop these non sense activity.
Some one faught with his father n left home. Some mentally group's trying to create communal tension in South Kanara surroundings.
State Govt n dept must take strict action n send them behind bar for at least 6 months period is the only right remedy.
Jai Hind
bjp has no other issue and that is the reason they take up converion issue. Its cleared by Police Dept that no case of forced conversion taken place in Suliya. Based on this, Police should ban hate mongers from giving any speech and ban these terrorist organisations.
More & More people converted to Islam in USA & Britain so that they can create another Afaghanistan & Syria
Bopanna...
I feel you need more education on God... U look dumb when u dont study about your enemies.. Dont just depend on cheddis fed info on islam...
Use your own intellect and read your enemies book The QURAn...
I will help U ... read online theQuranProject , well explained for people like you... Try it man.
Another pillar of Islam
1. Bombs
@Sangeeth, Mangalore
Yes! they converted because of listening to zakir naik's speeches. Because he speak the truth. and they liked the truth.
Entire Karnataka incluidng Dakshina Kannada is crying for drinking water. But these shakunis are worried about religious conversions.
I want to ask the bunch of jokers in this forum - Viren, Yogesh & Sangeeth
Your voice speaks that you are really worried of growing popularity of Islam
Why do you think people are forcibly converted? Are they illiterates ?
You will agree to the fact that in this modern age, each product has its own USP and just imagine why there are more Airtel subscribers in the country compared to other telecom providers ?
Are the customers compelled to subscribe for their product ? In this age, every individual are smart enough to decide which one suites him.
So it is foolish to tell people are being converted forcibly
Yogesh...how innocent Hindus became chaddis...this is mind wash from terrorist group RSS
@Yogesh
UK's No 1 News channel
http://www.dailymail.co.uk/news/article-1343954/100-000-Islam-converts-…
@Yogesh proof for yogesh
http://www.dailymail.co.uk/news/article-1343954/100-000-Islam-converts-…
http://www.ibtimes.com/muslims-america-more-latinos-converting-islam-us…
CELEBRITIES WHO CONVERTED TO ISLAM, SO MANY
https://en.wikipedia.org/wiki/List_of_converts_to_Islam
And whoever seeks a religion other than Islam, it will never be accepted of him) ?3:85?.
In this Ayah ?3:19?, Allah said, asserting that the only religion accepted with Him is Islam,
No other religion book says. We dont benifit by converting u people, u are getting benifitted.
At the end of the day, those who doesnt follow and practice islam. He will be the loser.
More educated person is converting to islam than non educated ones.
Highest people are converting islam is from britain and america. There is no pint of force converting.
After 9/11 to prove quran wrong. many started to studing quran, they found that it is the true peace religion. And the terrorists are doing anti islamic. Against islam. So many people converted stil now people are converting.
Many big celebrities like mohammed ali, tyson, tony blairs sister are all converted to islam
please note that hindus converting to islam because of some hate speeches made by hindu leaders like kalladka
@VIren
U should Thank Arabs, the word Hindu is given by Arabs.
The actual Religion is named as Sanathan Dharm. Which nobody Follows.
@viren
How Hindu Population is Increasing, Show me a single Person who converted from Islam to Hindu.
i think u r just telling Opposite,
Plz Check, Ur family Members might have converted to Islam.
Police should arrest all PFI goons , hindu population is increasing day by day and PFI aware about it
Just say in ur heart, La ilaaha illalla Muhammed arra Soorula, u Have passed first stage of islam. No body can stop it.
This is the power of islam.
The Five Pillars consist of:
Shahadah: sincerely reciting the Muslim profession of faith.
Salat: performing ritual prayers in the proper way five times each day.
Zakat: paying an alms (or charity) tax to benefit the poor and the needy.
Sawm: fasting during the month of Ramadan.
Hajj: pilgrimage to Makkah.
No other religion book says so.
Hindus make idols, But i think, the man who makes the idol. is greater than idol.
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