RSS worker’s murder: Cops illegally detaining innocent Muslims, says SDPI

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, Mar 8: Lieutenant General Milind Hemant Thakur, Director-General of Supply and Transport Corps of the Indian Army, unveiled the renovated Animal Memorial at Agram Grounds in ASC Centre and College here on Saturday.

The animal memorial signifies the contributions of mules and horses of the Indian Army. These animals belonging to the Army Service Corps, who have rendered their services relentlessly during the war in the Himalayas, often paying the highest price of sacrificing their lives in the line of duty have been chronicled in the Memorial.

To ensure that these hoof prints do not get obliterated, on approval by the Government of India, their saga was brought to life in the form of a sculptured monument in the Equestrian Training Area of the ASC Centre and College.

This animal transport memorial has now been extended by constructing two walls supported by Roman pillars on either side.

These walls highlight the role played by the animals in the Indian Army since the British Raj. It gives details of 637 gallantry awards won by the brave muleteers, 49 battle casualties since independence, 14 gallantry awards to mules since independence and 05 military recognitions bestowed by the Chief of the Army Staff and other Army Commanders on AT units, who have been relied upon heavily to fill an important niche in the logistics networks of the Indian Army.

Gen Thakur also declared that 26 September each year has been nominated as the AT Remembrance Day as it was on this day in 1914, that 9th mule Corps, as part of the Indian Expeditionary Force, landed at Marseilles in France, to a most hearty and enthusiastic welcome by the French to support the British and allied armies in World War One.

Bhatkal, Mar 30: Uttara Kannada district administration has decided to shift all those Bhatkal residents who have returned from abroad after March 15 to quarantine facilities in Bhatkal town to avoid further family contacts, Deputy Commissioner of Uttara Kannada K Harish Kumar said on Monday.

“All primary contacts identified are already in government quarantine facilities,” he said in a communique.

All people must cooperate to maintain social distancing to avoid further spread of COVID-19, he added.