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1,541 news posts in Research news

Neuroscience

01 Jun 2022

This illusion, new to science, is strong enough to trick our reflexes

By Mischa Dijkstra, Frontiers science writer An illusion new to science shows that the pupillary light reflex, which controls the width of the pupil in anticipation of expected changes in light, depends on the perceived environment rather than the physical reality. Have a look at the above image. Do you perceive that the central black hole is expanding, as if you’re moving into a dark environment, or falling into a hole? If so, you’re not alone: a new study shows that this ‘expanding hole’ illusion, which is new to science, is perceived by approximately 86% of people. Dr Bruno Laeng, a professor at the Department of Psychology of the University of Oslo and the study’s first author, said: “The ‘expanding hole’ is a highly dynamic illusion: The circular smear or shadow gradient of the central black hole evokes a marked impression of optic flow, as if the observer were heading forward into a hole or tunnel.” Optical illusions aren’t mere gimmicks without scientific interest: researchers in the field of psychosociology study them to better understand the complex processes our visual system uses to anticipate and make sense of the visual world – in a far more roundabout way than a […]

Health

31 May 2022

When should I schedule my exercise? The question is more important than you think

By Mischa Dijkstra, Frontiers science writer A randomized controlled trial shows for the first time that for physical exercise, the time of day affects its effectiveness. Whether morning or evening exercise is more effective depends on type of exercise and training objectives, and differs between women and men. But even when time of day isn’t taken into account, the new multimodal weekly exercise program presented here improves health and performance for both sexes. When should I fit exercise within my daily schedule? For most, the answer depends on our family’s schedule and working hours, and perhaps on whether we’re ‘larks’ or ‘night owls’. But over the past decade, researchers have found that much more hangs on this question than these constraints. That’s because recent findings suggest that the effectiveness of exercise depends on the time of day (Exercise Time Of Day, ETOD). Now, a randomized controlled trial not only confirms convincingly that ETOD affects the effectiveness of exercise, but also shows that these effects differ between types of exercise, and between women and men. The results are published in Frontiers in Physiology. ► Read original article► Download original article (pdf) Principal investigator Dr Paul J Arciero, a professor at the Health and […]

Space sciences and astronomy

18 May 2022

Method used to track ants underground could revolutionize how we measure snow depth from space

By Simona Pesce, Frontiers writer Photo of snow taken by crew of the International Space Station. Image: NASA With the help of some ants, NASA scientists have developed an innovative concept to measure exactly how deep the snow layer is covering sea ice and mountains using a lidar (Light Detection and Ranging) instrument in space. The findings, published in Frontiers in Remote Sensing, reveal this new method will have several applications and provide more accurate measurements on the evolution of snowpack as a result of the climate crisis and better monitoring of water resources globally. Ants may be the unlikely heroes when it comes to better understanding the health of our planet in the midst of a climate crisis. In a paper published to Frontiers in Remote Sensing, a team of scientists, including those from NASA, have found a way to estimate the depth of snow from orbit using ants deep underground. One member of the team is Yongxiang Hu from NASA’s Langley Research Center who drew inspiration from physics and biology to create a unique snow depth model. A previously developed model found that the average time an ant walks around inside the colony before coming back is roughly […]

Robotics and AI

17 May 2022

Frontiers in Virtual Reality Seminar Series 2: striving for social harmony in XR

Image: Shutterstock.com Online Seminar Series 25th May – 22nd June 2022 This seminar series is presented by field chief editor of the Frontiers in Virtual Reality journal, Prof Mel Slater and members of the GuestXR European Project.  By now we are likely to have come across horror stories from ‘the metaverse‘ about how easy it is to encounter abuse, racism, misogyny, and have an overall unpleasant experience. On the other hand, social virtual environments have been studied for many years and there is evidence about how people behave in virtual meetings. GuestXR is carrying out research towards how to make immersive virtual meetings realize the goals of the participants. Normally virtual meetings have a purpose, even if that is entertainment, and GuestXR has the ambitious aim of intervening in such meetings to make them fit for their purpose. In this seminar series, partners from the GuestXR project will speak about their early work on these issues, covering a review of virtual meetings (‘collaborative virtual environments’), the utility of agent based models for social modeling, what we can learn from the neuroscience of interpersonal interaction, the role of deep learning for virtual humans, and reflections on the ethical aspects. Scheduled seminars TitleSpeakerDateTimeRegisterThe Affordances and Problems of Meeting in Virtual RealityMel […]

Health

12 May 2022

Common steroids after ‘long Covid’ recovery may cut risk of death by up to 51%

By Mischa Dijkstra, Frontiers science writer Researchers show that severe inflammation during hospitalization for Covid-19 increases risk of death within one year from seeming recovery by 61%. This risk is reduced again by 51% if anti-inflammatory steroids are prescribed upon discharge. We need to think of Covid-19 as a potentially chronic disease that requires long-term management, argue the authors. Evidence continues to gather that ‘long Covid’, that is, continued negative health impacts months after apparent recovery from severe Covid-19, is an important risk for some patients. For example, researchers from the University of Florida Gainesville showed last December that hospitalized patients who seemingly recovered from severe Covid-19 run more than double the risk of dying within the next year, compared to people who experienced only mild or moderate symptoms and who had not been hospitalized, or who never caught the illness. Now, a team including some of the same authors shows for the first time that among patients hospitalized for Covid-19 who seemingly recovered, severe systemic inflammation during their hospitalization is a risk factor for death within one year. This may seem paradoxical, as inflammation is a natural part of the body’s immune response, which has evolved to fight infection. […]

Health

10 May 2022

Children grow faster during school year than during summer holidays

By Mischa Dijkstra, Frontiers science writer Image credit: MIA Studio / Shutterstock.com Children grow faster during the school year than during the summer period, show scientists. In contrast to the strong seasonality of vertical growth, there is little seasonality in increase in body weight over time. Slower vertical growth affects the BMI and contributes to the “obesogenicity” of the summer period. It has been long recognized that in Western countries, children are more likely to become overweight or obese over the summer. Causes of this include changes in kids’ physical activity and diet over the summer period, including the summer holidays. But in a new study in Frontiers in Physiology, scientists from the US show that this ‘obesogenicity” of summers has another unexpected cause: children grow faster over the school year than over the summer. And because Body Mass Index (BMI) is the ratio of body weight in kg and height in meters squared, faster vertical growth during the school leads to increased BMI during summers. “Here we show seasonality in standardized body mass index (BMIz), with children gaining height at a greater rate during the school year compared to the summer,” said Dr Jennette P Moreno, an assistant professor […]

Environment

05 May 2022

How bees prove to be skilled mathematicians and 3 other amazing science stories you may have missed

By Colm Gorey, Science Communications Manager Image: Shutterstock.com At Frontiers, we bring some of the world’s best research to a global audience. But with tens of thousands of articles published each year, many often fly under the radar. Here are just four amazing papers you may have missed. What are the odds? Honeybees join humans as the only animals known to be able to tell the difference between odd and even numbers A study published to Frontiers in Ecology and Evolution has created quite a ‘buzz’ among academics after it was found honeybees possess maths skills beyond what was originally thought. Previous studies have shown honeybees can learn to order quantities, perform simple addition and subtraction, match symbols with quantities, and relate size and number concepts. However, this time around, the bees were tasked with solving a parity experiment which involves categorizing two sets of objects as ‘odd’ and ‘even’. The bees were split into two groups: one trained to associate even numbers with sugar water and odd numbers with quinine, a bitter-tasting liquid familiar to gin drinkers. The second group was trained in the reverse with odd numbers linked to sugar water, and even numbers with quinine. Amazingly – […]

Health

27 Apr 2022

Almost 90% of autistic women report experiencing sexual violence, often on multiple occasions

By K.E.D. Coan, science writer The prevalence of sexual abuse may be up to three times higher for women who are on the autism spectrum, compared to those who are not, reports a new study from France. This is the largest survey specifically investigating the vulnerability of autistic women and the results will improve treatment strategies for victims, as well as prevention programs worldwide. As many as nine out of 10 autistic women in France report have suffered sexual violence, shows a new study in Frontiers in Behavioral Neuroscience. This is one of the largest studies to date focused specifically on this population. In contrast, previous research has shown that the rate of sexual aggression against non-autistic women is one in three, suggesting that offenders are three times more likely to target autistic women. The results also revealed that most victims had been assaulted multiple times, that this began when they were young and that they were rarely able to report the abuse or receive care. These findings will guide better prevention and treatment programs.  “This research project was started by the study’s co-authors (Dr David Gourion, a psychiatrist, and Dr Séverine Leduc, a neuropsychologist) who have observed in their […]

Space sciences and astronomy

27 Apr 2022

Solar energy is superior to nuclear for powering crewed mission to Mars, show scientists

By Peter Rejcek, science writer A crewed mission to Mars will require transporting equipment for creating electricity to power life support systems. The choice for the type of device used will require a tradeoff between mass and energy efficiency. Researchers here show that a photovoltaic system using compressed hydrogen energy storage can compete with nuclear energy across about 50% of the Red Planet. No other planet in our solar system has sparked the human imagination more than Mars. While modern science has debunked the Red Planet as a likely source of an alien invasion, today’s technology is bringing us closer to a crewed mission. A research team out of the University of California, Berkeley published a paper in the journal Frontiers in Astronomy and Space Sciences that argues a human expedition on the surface could be powered by harvesting solar energy. The concept is not new. The main source of power for some NASA Mars rovers comes from a multipanel solar array. But, in the last decade or so, most people had assumed that nuclear power would be a better option than solar energy for human missions, according to co-lead author Aaron Berliner, a bioengineering graduate student in the Arkin […]

Life sciences

26 Apr 2022

Think fast! Clever monkeys plan their food trips to avoid stronger rivals

By Mischa Dijkstra, Frontiers science writer Vervet monkey, Chlorocebus pygerythrus, from K social group in Uganda. Image credit: TJM Arseneau-Robar, KA Anderson, EN Vasey, P Sicotte, JA Teichroeb Researchers show that vervet monkeys take into account complex social contexts to plan their food trips. When higher-ranking competitors are nearby, they rush to secure the best food immediately. But when they have sufficient time, they choose a route that maximizes the total food intake and minimizes travel distance. Vervet monkeys are quick and clever planners of the best route to follow on foraging trips, shows a new study. When dominant group mates are too far away to interfere, vervets tend to choose the shortest route along successive food sites, snacking on each at leisure. But when dominants group mates are nearby, they seem to assess the time before these can approach and displace them at the feeding site. They then choose the route that maximizes their food intake and minimizes travel distance before the competitors’ arrival. These results, published in Frontiers in Ecology and Evolution, mean that vervets have excellent cognitive skills for quickly appraising the social context and planning their route accordingly. These skills allow them to choose foraging strategies […]

Health

25 Apr 2022

World Malaria Day: Meet a researcher using genetic engineering to tackle a serious global disease

By Colm Gorey/Prof Tania de Koning-Ward, Deakin University Prof Tania de Koning-Ward, Deakin University. Image: Deakin University World Malaria Day – held on the 25 April –  is an occasion to highlight the need for continued investment and sustained political commitment for malaria prevention and control. To mark this important awareness day, Frontiers caught up with Prof Tania de Koning-Ward to hear how she is contributing to a global effort to prevent hundreds of thousands of deaths each year. Tania de Koning-Ward is a professor in molecular microbiology based at Deakin University’s School of Medicine in Australia and is a senior research fellow of the country’s National Health and Medical Research Council. Here she heads the school’s malaria pathogenesis research group which aims to investigate molecular level, key parasite-host interactions that enable malaria parasites to thrive and survive in their host and cause disease. She has published extensively on the subject, including in an article published to Frontiers in Cellular and Infection Microbiology in September 2020. What inspired you to become a researcher? Do you have any specific memories that set off a spark? Growing up, I always enjoyed biology and maths but realized pretty quickly at university that it […]