Activist Rehana Fathima’s house ransacked for trying to entre Sabarimala temple

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 13: District administration in Kalaburagi, where the first death in India due to COVID-19 was reported, has identified over 25 people, who come close to the deceased and quarantined for observation, Minister for Health B Sreeramulu said on Friday.

In reply to a debate on the issue during Zero Hour of the Legislative Assembly, the Health Minister said that two members of the victim’s family and 23 others are suspected of COVID-19.

Mr. Sreeramulu said all the schools of the district have been as a preventive measure to contain the deadly virus.

Mangalore, Jan 21: Former city councillor and social activists Naveenchandra and social activist Vidya Dinker have been invited to participate in two-day National Level Consultation on Urban Governance which will take place on January 22 and 23 at Juniper Hall, India Habitat Centre, New Delhi.

Urban governance stakeholders of 20 states and one union territory will be participating in this national level consultative seminar. The participants will include elected representatives, NGO representatives and urban planning experts. The seminar is being organised by Mumbai based Prajna Foundation, which has undertaken an in-depth study of the governance of the 20 states and one union territories.

Having served several terms as a corporator of Mangaluru City Corporation, Naveenchandra is knowledgeable in matters relating to urban governance. He is very popular in his constituency. Vidya Dinker is a well known city based social activist. She is the Coordinator, Citizens Forum for Mangalore Development.