Category: ScienceNews

 

Use social media for any amount of time and eventually you will come across something that’s designed to both appeal to the angels of your better nature and asking to make a (small) effort to support or propagate this appeal. The prime example of recent years is the ALS Ice Bucket Challenge.

When these charitable appeals take off, that’s when social psychologist Sander van der Linden perks up. He studies ‘viral altruism,’ and in this Social Science Bites podcast he details to host David Edmonds how he studies this phenomenon.

“The idea,” van der Linden says, “is that you can ‘catch’ altruism in a behavioral way. When someone acts altruistically online, you catch that behavior as a social contagion, which then causes you to adopt that behavior and encourage other people in your network to also engage in that behavior, which then spreads quickly and rapidly.”

Van der Linden observes and describes the mechanics of these processes using something he calls SMArT, breaking down the online altruistic efforts by their social influence, moral imperative, affective reactions and translational impact.

This yardstick allows van der Linden to draw conclusions from what can be a smallish data set of unique events. SMArT allows van der Linden to find shared similarities that create body of data and which can be tracked. For example, van der Linden, is currently looking at the #MeToo movement to see if it fits into his scope of inquiry.

Van der Linden is a social psychologist and assistant professor in the Department of Psychology at the University of Cambridge where he directs the Cambridge Social Decision-Making Laboratory. He is also a Fellow in Psychological and Behavioural Sciences at Churchill College, Cambridge and an affiliated researcher at the Yale Program on Climate Change Communication at Yale University.

 

 

A cacophony of singing and screaming creatures’ accents are explored to answer: Can animals of the same species from different places communicate with each other? Presenter Geoff Marsh tries to identify how different these calls really sound for CrowdScience.

From wolves to birds to whales and chimpanzees, most animals use sound to communicate, but if groups in different places vocalise in different ways, they may not be able to communicate with others.

CrowdScience questioner, Kitty, sets us on an exploration of the vast and varied world of animal communication with inspiration from her dog Monty.

Presenter: Geoff Marsh Producer: Rory Galloway

(Photo: Three wolves howling on a cold day. Credit: Getty Images)

From worms who time their mating ritual with an inner lunar calendar, to how full moons could cause cows to give birth early. Listener Andreas sends CrowdScience on a mission to separate fact from fiction.

Presenter: Marnie Chesterton Producer: Marijke Peters

Picture: The moon rises over Kadam mountain in Uganda, on January 31, 2018, during the lunar phenomenon referred to as the 'super blue blood moon'. Credit: Yasuyoshi Chiba / AFP / Getty Images

Scientists have been searching for dark matter for 80 years, so CrowdScience wondered whether they could find it faster. Armed with a boiler suit, hard hat and ear defenders, Marnie Chesterton travels over a kilometre underground into a hot and sweaty mine to see how we could catch dark matter in action. She investigates various theories as to what it might be with popping candy and gazes at galaxies to determine how we know it exists in the first place. But most importantly, she questions whether it really matters. And, as our Singaporean listener Koon-Hou askes, what impact would finding it have on our everyday lives?

Presenter: Marnie Chesterton Producer: Graihagh Jackson

(Photo: Finding dark matter could have galactic implications. Credit: Getty Images)

Carbon is special, but is it necessarily the unique building block of life in the universe? Science fiction has long speculated on non-carbon biochemistries existing in the universe – notably in the work of authors such as Isaac Asimov as well as in the popular American TV series Star Trek, which once featured a rock-munching, silicon-based life form called ‘Horta’.

Marnie Chesterton explores the real science behind this intriguing idea and wonders whether in the current search for Earth-like planets elsewhere in the galaxy, we should be looking at completely different possible sets of rules when it comes to the hunt for life?

Producer Alex Mansfield Presenter Marnie Chesterton

(Photo: Saturn viewed from Titan moon. Credit: Getty Images)

The Western feud over “nature vs. nurture” dates back at least to an essay by John Locke in 1690. The idea that it’s an absolute binary – that our actions are determined solely by one or the other – is thankfully passé. And yet, in an academic setting, with scholars safe in their silos, the tension continues in practice if not in conversation.

For a bit of anecdotal evidence, look at Melinda Mills, the head of department and Nuffield Professor of Sociology at Oxford University. She studied the sociology and demography of families and family formation – things like when to choose to have a child, what a women’s age is when she first gives birth, or the number of children someone might have. “I was,” she tells interviewer David Edmonds in this Social Science Bites podcast, “looking at them in a very socially deterministic way. I was looking at things such as childcare institutions or gender equality or the kind of jobs that women and men have, and was childcare available and affordable and ... I was using those as explanations and predictors.

“And then I met some biologists and geneticists.”

Over drinks that day, these fellow researchers made fun of Mills: “This is Melinda and she studies fertility, but she doesn’t think it has any biological basis.” Much hilarity ensued. But the gibes bore a pleasant fruit – Mills broke free of the limits on her scholarship with which she had shackled herself. Her studies and collaborations now combined social science and molecular genetics; she now studies ‘sociogenomics,’ with a particular emphasis on how these interplay in the areas of inequality and life course. In that vein, she is the principal investigator of the SOCIOGENOME project and the ESRC National Centre for Research Methods SOCGEN project.

She notes that each part of the triad – social scientists, biologists and geneticists bring their real science to the table. “Wellbeing, depression, reproductive choice – [social scientist] are very good at measuring that. We then work with biologists and geneticists, who determine genetic loci, and then with biologists, who determine the biological function of those genes.

“As social scientists, we then create a score, your ‘reproductive score,’ and we add those to our statistical models together with the social science variables  -- the usual suspects lie your family background or your partner or educational level – and we add those together with the genetic data and we look at the interaction between those.” And, as you’ll learn, there can be surprises for all concerned. Geneticists, for example, might assume that genetic loci are universal ... but are they?

The effort also harnesses the big data of genetics technology, tapping into databases like the UK Bio Bank or the direct-to-consumer testing services like 23andMe.

In addition to her sociogenomics projects, Mills is a leader of the Working Package on Childlessness and Assisted Reproductive Technology in the European Families And Societies network, editor-in-chief of the European Sociological Review, and a fellow of the European Academy of Sociology.

How far can you see? A few kilometres down the road? Or do you struggle to see past the end of your own nose? Well one listener thinks he might be able to see 15 quintillion miles away... but can he really? Marnie Chesterton and Bobbie Lakhera are on the case for this week’s multi-question human body special. As well as delving into the power of vision, they also discover why male mammals have nipples despite not needing to breastfeed, and Marnie puts herself in a giant refrigerator in the name of finding out why some people feel the cold more than others.

Presenter: Marnie Chesterton Producer: Anna Lacey

Meet the entrepreneurs turning bugs into food and get top tips on how to cook them. In this week’s episode we return to the topic of edible insects and the story of Kahitouo Hein’s caterpillar factory in Burkina Faso, West Africa. Kahitouo is trying to turn a traditional food like the shea caterpillar, available for just a few weeks a year, into a year-long sustainable staple for the whole population.

We also put your questions about edible insects directly to the researchers in Burkino Faso. Discover the best way to cook a bug, explore the curious effects of hornet venom and find out whether eating insects is better for the environment then eating red meat.

Do you have a question we can turn into a programme? Email us at crowdscience@bbc.co.uk

Presenter: Anand Jagatia Producer: Louisa Field

(Photo: Worker at Kahit’s factory cooking caterpillars)

Most of us instinctively know when someone’s singing and when they’re talking. But since music and speech are both just sounds, how do our brains tell them apart? This week’s question comes from Eugene, a music teacher in Northern Ireland, who often hears music in people’s speech, and wonders why.

Step forward, the ‘speech-to-song illusion’. This curious phenomenon means that when certain spoken phrases are repeated, they turn into music as if by magic. We talk to the Diana Deutsch, the scientist who discovered this illusion, and find out what it reveals about how the brain is adapted to understand both music and speech.

But are some languages more musical than others? Many people around the world speak tone languages, where the pitch of a word affects its meaning. One such language is Dinka, spoken in South Sudan; we meet a Dinka speaker and hear how respecting the melody of the language is essential when writing songs.

Presenter: Datshiane Navanayagam Producer: Cathy Edwards

Dinka recordings courtesy of Elizabeth Achol and Anyang Malual

(Photo:Young woman listening to music on yellow headphones. Credit Getty Images)

Dogs have been living and working with humans for thousands of years. But they’re much more than just pets. As any dog owner will tell you, the bond we have with our canine friends is often so strong that they feel more like family.

So how is it that dogs have come to fit so seamlessly into human life?

That’s what CrowdScience listener Peter Jagger in the UK wants to know, and Marnie Chesterton is off to sniff out some answers. She starts by revisiting a previous episode of CrowdScience based in Sweden, where she saw the dog-human bond come alive during a moose hunt. She then heads to the Dog Cognition Centre in Portsmouth to discover how a unique and often unconscious communication system helps our dogs to understand us. Finally, Marnie finds out about the fate of dogs that are no longer wanted by their humans. After thousands of years of domestication, can they ever live without us?

Presenter: Marnie Chesterton Producer: Anna Lacey

(Photo: Image of young girl with her dog, alaskan malamute. Credit: Getty Images)