(Press-News.org) DURHAM, N.C. -- What makes preschoolers eat their veggies? Raise their hand? Wait their turn? "Because I say so" is a common refrain for many parents. But when it comes to getting kids to behave, recent research suggests that the voice of adult authority isn't the only thing that matters. Around age three, fitting in with the group starts to count big too.
That's the finding of a new study by Duke University researchers showing that, by their third birthday, children are more likely to go along with what others say or do for the sake of following the crowd, rather than acting out of a desire to kowtow to authority or heed that person's preferences per se.
"Every culture has its do's and don'ts," said first author Leon Li, a doctoral student in psychology and neuroscience at Duke.
We're not born knowing what to say when someone sneezes, the right and wrong time to wear a hat, or that we should eat with a fork and not with our hands. But most of us begin to pick up on these unwritten social rules when we are very young, and quickly figure out when and how to follow them.
The question, Li said, is what makes young children "behave"? What propels a 3-year-old to use their quiet voice when they'd rather sing and shout? What's really going on when a person covers their cough and a preschooler follows suit, against their own inclination?
Perhaps children this age are not really trying to conform to the accepted way of doing things, some have suggested, as much as they are trying to show regard for adults by doing what they say. Or the child's copycat behavior could be rooted in a desire to feel bonded with that person.
To better understand what motivates preschoolers to fall in line, the researchers conducted a study in the lab of professor Michael Tomasello at Duke, where Li and Duke undergraduate Bari Britvan invited 3.5-year-olds to help set up for a pretend tea party.
Each of the 104 children was given a blue sticker to wear at the start of the study, and told that the people with that color sticker were part of the same team.
Next the researchers watched as the children decided among different kinds of teas, snacks, cups and plates for the tea party, first on their own and then after listening to the choices of other team members.
Sometimes the other team member framed their choice as a matter of personal preference. ("For my tea party today, I feel like using this snack.") Other times they presented it as a norm shared by the whole group: ("For tea parties at Duke, we always use this kind of snack.")
After listening to the choices of others, most of the time the children stuck with their first choice. In other words, children who initially said they felt like using, say, the donut eventually wound up picking the donut no matter what the other person said they were using.
But 23% of the time the children switched their choice to settle for someone else's. And when they did, they were more likely to go along with the other person when an option was presented as a group norm rather than a mere personal preference.
The pattern held up even when the other person was another child, not an adult, suggesting that the preschoolers weren't simply acting out of a desire to imitate adults or obey authority.
Li says the findings lend support to an idea, proposed by Tomasello and colleagues, about how children develop the moral reasoning capacity that sets humans apart from other animals.
When an adult says to an infant or a toddler, "we don't hit," the child generally does as she's told out of deference to that person. But eventually, by around their third birthday, children start to think in a different way. They begin to understand cues such as "we don't hit" as something larger, coming from the group, and act out of a sense of connectedness and shared identity.
INFORMATION:
CITATION: "Young Children Conform More to Norms Than to Preferences," Leon Li, Bari Britvan, and Michael Tomasello. PLOS ONE, May 26, 2021. DOI: 10.1371/journal.pone.0251228.
Malignant tumour cells undergo mechanical deformation more easily than normal cells, allowing them to migrate throughout the body. The mechanical properties of prostate cancer cells treated with the most commonly used anti-cancer drugs have been investigated at the Institute of Nuclear Physics of the Polish Academy of Sciences in Cracow. According to the researchers, current drugs can be used more effectively and at lower doses.
In cancer, a key factor contributing to the formation of metastasis is the ability of the neoplastic cells to undergo ...
Although vaccination programmes against pertussis are very effective in Europe, new Finnish study shows that the disease is still very common among middle-aged adults in various European countries. At the same time, the results show that the disease is underdiagnosed as the annually reported figures are considerably lower than those discovered in the study.
The primary cause of pertussis, also known as whooping cough, is the Bordetella pertussis agent which spreads through the respiratory mucosa and produces toxins that damage the mucous membrane. These toxins incapacitate the body's ...
The first ever vaccine target for trypanosomes, a family of parasites that cause devastating disease in animals and humans, has been discovered by scientists at the Wellcome Sanger Institute. By targeting a protein on the cell surface of the parasite Trypanosoma vivax, researchers were able to confer long-lasting protection against animal African trypanosomiasis (AAT) infection in mice.
The study, published today (26 May 2021) in Nature, is the first successful attempt to induce apparently sterile immunity against a trypanosome parasite. A vaccine was long thought impossible due to the sophisticated ability of the parasites to evade the host immune system. As well as a strong ...
NEW YORK (May 26, 2021) -- About 12,000 bacteria and viruses collected in a sampling from public transit systems and hospitals around the world from 2015 to 2017 had never before been identified, according to a study by the International MetaSUB Consortium, a global effort at tracking microbes that is led by Weill Cornell Medicine investigators.
For the study, published May 26 in Cell, international investigators collected nearly 5,000 samples over a three-year period across 60 cities in 32 countries and six continents. The investigators analyzed the samples using a genomic sequencing ...
May 26, 2021 - Social media sites - especially Instagram - have revolutionized the way plastic surgeons market their practice. These platforms allow surgeons to post testimonials, educational videos, and before-and-after photos. This information can help to guide patients in making decisions about whether to undergo cosmetic surgery and which plastic surgeon to choose, based on factors like the surgeon's experience and results achieved.
However, patient perceptions of plastic surgeons' skills may also be affected by implicit bias - based solely on the ethnicity of the surgeon's name. "In our survey of responses to otherwise-identical Instagram ...
Threads of superheated gas and magnetic fields are weaving a tapestry of energy at the center of the Milky Way galaxy. A new image of this new cosmic masterpiece was made using a giant mosaic of data from NASA's Chandra X-ray Observatory and the MeerKAT radio telescope in South Africa.
The new panorama of the Galactic Center builds on previous surveys from Chandra and other telescopes. This latest version expands Chandra's high-energy view farther above and below the plane of the Galaxy - that is, the disk where most of the Galaxy's stars reside - than previous imaging campaigns. In the image featured in our main graphic, X-rays from Chandra are orange, green, blue and purple, showing different X-ray energies, and the ...
Children with ADHD are generally treated with medication and/or behavioral treatments. However, medication-alone is insufficient in a quarter to a third of the children. For that reason, the scientists investigated whether a mindfulness-based intervention (MBI) would have a positive effect on children who did not respond sufficiently to other ADHD treatments. MBIs can elicit positive effects on psychological symptoms and behavior of children and parents.
In the study, two groups of children between the ages of eight and sixteen were compared. One group received only regular care (CAU, care-as-usual), and the other group also received MYmind, the mindfulness-based intervention ...
DURHAM, N.C. - Decades after federal bans ended widespread use of lead in paint and gasoline, some urban soils still contain levels of the highly toxic metal that exceed federal safety guidelines for children, a Duke University study finds.
To conduct their study, the researchers analyzed and mapped soil lead concentrations along 25 miles of streets in Durham, N.C., a city of about 270,000 people. They found that while soil lead levels have generally decreased since the 1970s, they have decreased much less near residential foundations than along streets.
The researchers collected soil samples near foundations of houses built before 1978. Samples within a meter of the older homes averaged 649 milligrams (mg) of lead per kilogram (kg) of soil, more than ...
Depression is the leading cause of disability worldwide. Neuroscientists from Synapsy - the Swiss National Centre of Competence in Research into Mental Illness - based at Lausanne University Hospital (CHUV) and Lausanne University (UNIL) have recently demonstrated that lactate, a molecule produced by the body during exercise, has an antidepressant effect in mice. Lactate is best known for the pivotal role it plays in the nutrition of neurons inside the brain. Yet it can also counter the inhibition of the survival and proliferation of new neurons, a loss ...
Normal cells usually have multiple solutions for fixing problems. For example, when DNA becomes damaged, healthy white blood cells can use several different strategies to make repairs. But cancer cells may "put all their eggs in one basket," getting rid of all backup plans and depending on just one pathway to mend their DNA. Cold Spring Harbor Laboratory (CSHL) Professor Christopher Vakoc focuses on probing cancers to figure out if they have any unique dependencies. His lab was surprised to discover that a single DNA repair method remained in acute myeloid leukemia (AML), an aggressive cancer that originates in bone marrow. They discovered that if they shut down that pathway in cells grown in the ...