Children-wearing-masks-is-it-harmful?

Original article written by Lindsey Tanner.

According to Lindsey Tanner, who researched this question, the answer is no, there is no scientific evidence showing masks cause harm to kids’ health.  Despite this, there are claims suggesting otherwise.

The claims are circulating on social media and elsewhere, most of them being arguments that are unsupported by any evidence.  They lead to beliefs that masks can foster germs if they become moist or cause unhealthy levels of carbon dioxide. But the real experts say that washing masks routinely keeps them safe and clean.

Some argue that young children miss important visual and social cues that enhance learning and development when their classmates and teachers are wearing masks. There may be some truth in this and teachers need to take notice of this.  However, it has also been noted that children even with vision or hearing impairment learn to adapt and that others can too with help.

“We don’t know for sure that masks have no developmental effects but we do know that there are adverse effects from not trying to stop transmission,” said Dr. Emily Levy, a critical care and infection control expert at Mayo Clinic Children’s Center.

There’s strong evidence that masking children in schools can reduce COVID-19 transmission to other children and adults.

In various states in America, it’s been found that COVID-19 outbreaks are two times more common in those that do not have a mandate for mask wearing.  Studies from school districts in some states have also found that masking can greatly reduce COVID-19 transmission rates, especially when it’s combined with physical distancing and other prevention measures.

“One thing that we know about prevention, about infection control is that there isn’t a single intervention that will win the day,” said Dr. Joshua Schaffzin, director of infection prevention and control at Cincinnati Children’s Hospital. But he noted there’s plenty of evidence that masking is a key component in making schools safer.

To avoid skin irritation, doctors suggest washing masks regularly, making sure they fit properly and picking masks made with soft, breathable fabric.

 

Martin Doherty, writing for The Conversation, says that at the age of about four, children reach important milestones in brain development.

One of these is a huge improvement in understanding others’ thoughts and feelings. This is the start of empathy.  Another is in spatial thinking—understanding how objects are positioned and related. This is the beginning of the ability to read maps.

Martin and his colleague, Catherine Sayer, conducted a study with 175 two to five-year-olds to explore how children are able to use scale models to figure out where something is in the real world. At about four, children are able to use a scale model of a room to work out where something is. We thought that this might result from children’s understanding of how one thing can represent something else. But we actually found that four-year-olds’ ability to use scale models came from their spatial abilities.

At the same age, children start to understand that someone’s behaviour is due to what that person believes, not necessarily what is really the case. This has interesting consequences.

If you’ve played hide-and-seek with young children, you may have noticed that they aren’t always very good at it. They love the ritual of looking in all the wrong places first, but beforehand they may tell you where they are going to hide, hide in the same place every time, or not be especially hidden.

After their fourth birthday, they get much better at hide and seek. They understand that the seeker looks in the wrong places because they don’t know where the hider is.

At about three to four children also start to tell lies. They realize they can make someone believe something that isn’t true.

Understanding symbols

Martin’s earlier research with fellow psychologist Josef Perner suggests that four-year-olds don’t just start to understand how others’ minds work. Figuring this out is part of the development of an understanding of “representation”—that symbols, like thoughts, words, or pictures, can be used to stand for something else.

Children start to think about how words relate to objects. This means, for instance, knowing that “animal” can refer to something you already have a name for, such as “rabbit”. This might help children learn the new word.

Their ability to use a understand the components of pictures also improves around this age. Very young children use a lot of trial and error to complete a jigsaw, picking up random pieces to see if they fit. By the time they are about four years old, they start to use the picture as a guide, trying to connect lines and match bits of colour, while checking the guide picture on the box lid.

Developmental experiments

Another ability children develop at around four is using scale models. A classic set of developmental experiments involved a model of a regular household room. The real room had typical furniture—sofa, table, cupboard and so on—and the model had miniature versions laid out in the same way.

Children were shown where something was hidden in the model and told to find an object hidden in “the same place” in the room. Children of around four can find the object using the identical layouts. If shown a sticker under a particular chair in the model room, for example, they can go straight to the “same” chair in the other room. This is the fundamental understanding required to read maps.

Adults see scale models and maps as representations. Maps represent a town or a country. A scale model of, say, the Eiffel Tower represents the real thing. At first, Martin suspected children’s ability to use scale models is more evidence of understanding representation at this age.

He was wrong. Instead, the researchers found that this ability is based on a development in children’s spatial abilities that also occurs at about four. This is the ability to think about spaces and where objects are within them. Spatial abilities help with maths skills, and good spatial ability is linked to an interest in science, technology, engineering and mathematics.

Their experiment was simple. They compared the model room task with a test of understanding how representation works. The two abilities develop around the same age, but they found they were not related. Children who could do one task couldn’t necessarily do the other.

They also had a test of purely spatial ability. Children who passed the model room task also passed the spatial task. So it looks like the model room task relied on children‘s spatial thinking.

They don’t yet know why two important but apparently unrelated abilities arise at the same time. Perhaps it’s related to changes in the growing brain at this  interesting age.

Provided by The Conversation

Image supplied by Freepik.