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.
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If Mr.Bhat arrested then it will be in Guinnus Book of records!! Congress Government have no guts to do it!! Mr. Bhat a well known figure in creating communal tension involving directly / indirectly in various types of crimes in our district since 35 years!!! but no Government so far not even able to file an FIR against him!! This is very sad news for peace loving people of this district. In this case also CID is helpless.
Do anybody have the guts to touch this chaddi? Hope atleast this time.
Put him behind the bars. Law is equal to all.
No one can touch bhat, even congRSS goverment cannot touch him because all are wearing his chaddi.
Not god call father or baap, shame on you yaar study history of that rowdy bhat, do you know he is barking about cow but he is selling cow from your mother land sulliya asram,
Arrest this insect of mangalore Before he spread the virus
he will get punishment for his mistake,. but why people are so much interested in his life,
Prabhakar Bhat is Like Poojary, No hold for tongue. creating non sense in the society
kalladka bhat dont have any work to go behind this rape case?
Manohar! This is the problem with you guys.. If he says one word against Minorities then he is god for you.. grow up buddy! Before making him god try to understand what type of god he is? Good or bad!
No guts to congress arrest bhat, its 100% sure.. this congress only cheating minoties name of bhat and RSS. they are also blindly supporting Congress.. Above 70% of congress leaders touched with RSS. then how they are arrest
This person actually divides the community with his poisonous speech causing hatred among people.
It is individuals choice how he/she wants to live.
How can he impose Hindutwa on others who has his own principles.
There is a limit for toleration and patience, one day when the limit exceeds, then automatically faces the consequence.
If the law can not protect, then it needs to protect the law and do the justice to all.
Manohar ,
There are many faces who are sheep in front & Fox from behind.. Which u guys are unable to recognize... Go and ask with the Victim. If u personally did not met them. then Dont judge and give certificate of Honesty... A honest person will never give hate speeches..
Now behind Harish Murder ???? who sponsored ??? who is giving bike , car, money and legal protection to Bhajrang dal Boys???
If brain map Mr. Bhat ..... all these stories will come out.
He is the paid goonda from RSS. Its the closing time of bhatta.
Manohar, Bhatta is a stray animal......
will congi govt show guts to teach him lesson? i dont think so bcz most congi leaders are in touch with him
Guilty Must be Punished.
Such dual personality person cant fool people for long
Bhat bajrangi clean bowled....jail term not less then 10 years.....all the best....
The Great RSS!!!!
sabko pap yek din bugathna hoga.
Put him in jail forever, he s one and only person who creates communal dispute in the society.
THU THO GAYA BHAT ISS BAAR...
Must be a trap by congress, Kalladka Bhat is a prominent personality. goons are trying to defame some innocents
Great Personality of Tulu Nadu, This s the Fake news, he s like god to us, he cant make this .
Bhat is a murderer, This type of goons must be sent to pakistan.
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