Tigers are like terrorists; make cow ‘national animal’ to end terrorism: Pejavar Seer

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.

Bengaluru, Feb 24: Raising questions about the situation in Kashmir, senior Congress leader and former Karnataka chief minister Sidddaramaiah on Monday asked the BJP heading the union government to prove 'normalcy' by hosting US President Donald Trump's event in the valley.

If @BJP4India feels Kashmir has returned to Normalcy, & If @BJP4India feels that there is no govt orchestrated violence. Now is the time to prove the same by hosting @realDonaldTrump's event at Kashmir, Siddaramaiah tweeted.

Amid concerns raised by opposition parties, the government has said efforts have been made to restore normalcy in Jammu and Kashmir which faced months of restrictions after its special status under Article 370 was scrapped in August last year.

Siddaramaiah, who is Leader of Opposition in Karnataka Assembly, in another tweet hit out at Prime Minister Narendra Modi on the long wall built near the airport in Ahmedabad allegedly to block the view of a slum, ahead of Trump's visit.

It is time for @realDonaldTrump to get inspired from @narendramodi. Inspiration to build decorative walls to hide not so decorative life!! he tweeted. The opposition Congress in Gujarat had accused the BJP- ruled civic body in Ahmedabad of building the 500-meter long wall to block the view of a slum colony. Refuting the allegations, AMC officials had said the construction of the wall, around four feet in height, was approved much before Trump's Gujarat visit was finalised.

Trump, accompanied by First Lady Melania Trump and a high-level delegation, arrived in Ahmedabad around noon on Monday for a little less than a 36-hour-long trip.

Mangaluru, Jan 29: Days after some youths allegedly threatened to 'behead' local MLA and former Karnataka minister U T Khader during a pro-CAA rally here, the Dakshina Kannada district unit of the Congress on Wednesday urged the police to register a case against the culprits.

A video of the incident that went viral on social media showed the youths raising slogans that they will "cut off his limbs and chop off his head if necessary" during the rally organised by the BJP in support of the Citizenship Amendment Act on Monday.

Addressing reporters here, District Congress Committee president Harish Kumar demanded that the police register a case on their own against the youths. He said if prompt action was not taken against the youths seen in the video, the Congress will launch an agitation before the office of the Commissioner of Police.

When asked by reporters about the video, Khader had on Tuesday brushed aside the threat, saying he had not taken it seriously. The MLA had also said he did not file a complaint with police as he had concern for the families of the youths.