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For the first time, scientists have recorded how our brains navigate physical space and keep track of others’ location, suggesting that our brains generate a common code to mark where other people are in relation to ourselves. Researchers used a special backpack to wirelessly monitor the brain waves of epilepsy patients as each one walked around an empty room hunting for a hidden, two-foot spot.
In an article published in Nature, the scientists report that the waves flowed in a distinct pattern suggesting that each individual’s brain had mapped out the walls and other boundaries. Interestingly, each participant’s brain waves flowed in a similar manner when they sat in the corner of the room and watched someone else walk around, suggesting these waves were also used to track other people’s movements.
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“We were able to directly study for the first time how a person’s brain navigates an actual physical space that is shared with others,” said Nanthia Suthana, assistant professor of neurosurgery and psychiatry at the David Geffen School of Medicine at the University of California, Los Angeles (UCLA).
The study was part of the US National Institute of Health’s (NIH) Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative. In this study, the team worked with a group of participants with drug-resistant epilepsy, 31-52 years old, whose brains have been surgically implanted with electrodes to control their seizures.
The electrodes reside in a memory center in the brain called the medial temporal lobe, which is also thought to control navigation, at least in rodents. Over the past half-century, scientists, including three Nobel Prize winners, discovered that neurons in this lobe act like a global positioning system (GPS).
“Several pieces of indirect evidence support the medial temporal lobe’s role in how we navigate. But testing these ideas any further has been technically difficult,” said Matthias Stangl, a postdoctoral scholar at UCLA and the lead author of the article.
Dr. Suthana’s team plans to explore these ideas in greater depth. In addition, the team has made the backpack available to other researchers who want to learn more about the brain and brain disorders. (IANS)
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The other factor is that the traditional players are very strong in the consumer laptop market. Top 3 players control more than 70 per cent of the market and strong portfolio, distribution, and channel reach as well as brand marketing has helped them massively. "New brands can surely make a dent in the consumer laptop market but are challenged by supply issues right now. Watch out for them in 2022 as and when supply situation eases up," Navkendar Singh, Research Director, Client Devices & IPDS, IDC India told IANS.
Dominated by HP Inc, Lenovo and Dell, the traditional PC market (inclusive of desktops, notebooks, and workstations) in India continued to be robust as the shipments grew by 50.5 per cent year-over-year (YoY) in the second quarter (Q2), according to IDC. Notebook PCs continue to hold more than three-fourth share in the overall category and grew 49.9 per cent YoY in 2Q21, reporting a fourth consecutive quarter with over 2 million units. Desktops also indicated a recovery as shipments grew 52.3 per cent YoY after recording the lowest shipments of the decade in 2Q20.
According to Prabhu Ram, Head, Industry Intelligence Group, CMR, driven by the pandemic and the associated accelerated pivot to remote work, learn and unwind culture, PCs have been witnessing heightened demand. "Despite the current supply chain constraints, PCs are here to stay in the new never normal. In the run-up to the festive season, established PC market leaders will continue to leverage their brand salience and gain market share," Ram told IANS.
HP maintained its lead in the India PC market with a 33.6 per cent share as its shipments grew 54.2 per cent annually. Dell Technologies continued to hold the second position with a 22.1 per cent share and an impressive 86.1 per cent YoY growth in 2Q21. Lenovo maintained the third position with a share of 17.8 per cent in 2Q21.
Arvind Suraj, Research Fellow, Jawaharlal Nehru University (JNU), said that there is always a trust issue with new brands. "You won't buy a laptop in 6 or 7 months just like smartphones. In this case, we often go for existing players. Brands like Lenovo, HP, ASUS and Acer have already gained our trust," he said. (IANS/ MBI)
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