Mangaluru: Gang attacks two Muslim youths at Bajal

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 22: President Ram Nath Kovind on Saturday said an ideal trade-off needs to be reached between new media -- which is fast and popular -- and traditional media which has developed skills to authenticate a news report, which is a costly operation.

Addressing the fourth edition of ‘the Huddle’ – the annual thought conclave of the Hindu here, he asserted that the internet and social media had democratised journalism and revitalised democracy, but had also led to many anxieties.

While the new media was fast and popular and people could choose what they wanted to watch, hear or read, traditional media would have to introspect on its role in society and find ways to earn the reader’s full trust again as "the project of democracy was incomplete without informed citizens – which means, without unbiased journalism."

Debate and discussion were internalised in India’s social psyche to arrive at truth since time immemorial, he said.

"There is no doubt that perception of truth is conditioned by circumstances. The conditions that cloud the truth’s positions are effectively dispelled by a contestation of ideas through debate, discussion and scientific temper. Prejudices and violence vitiate the search for truth."

Expressing happiness to attend ‘The Huddle’ organised by The Hindu, he said the Hindu group of publications had been relentlessly aiming to capture the essence of this great country through its responsible and ethical journalism. He commended them for their insistence on sticking to the five basic principles of journalism – truth-telling, freedom and independence, justice, humaneness and contributing to the social good, an official release here said.

Mr Kovind said dogmas and personal prejudices distorted the truth. In the 150th year of Gandhiji’s birth, he asked all to ponder over this question: "will it not be proper to pursue truth itself as the ideology? Gandhiji has shown us the path by walking ceaselessly in search of truth which would ultimately encompass every positive attribute that enriches the universe."

Mangaluru, Jul 16: Streets in Mangaluru wore a deserted look as the city woke up to the first morning of the seven-day lockdown on Thursday.

The lockdown is being observed after the state government announced it as a necessary step to combat the spread of COVID-19.

The week-long total shutdown came into effect in the Karnataka's Dakshina Kannada district from 8 pm on July 15 till 5 am on July 22.

The state government allowed relaxation between 8am to 11 am for purchasing of essential commodities. A slight rush was observed during the hours of the relaxation.

Karnataka has so far reported 47,253 positive COVID-19 cases, including 27,859 active cases and 18,466 recoveries.

So far, 928 people have lost their lives due to the infectious virus in the state.