Category Archives: Science Communication

Study Suggests Video Games Can Improve Your Mental Health

A person playing on a Nintendo Switch. Image: Mister Mister / Pexels

With people staying indoors due to the COVID-19 pandemic, many will socially connect through video games. A new timely study by Oxford University, using actual gameplay data for the first time, suggests playing video games can be beneficial for your mental health.

The study, which focused on popular games such as Nintendo’s Animal Crossing: New Horizons, as well as Electronic Art’s Plants vs Zombies: Battle for Neighborville, found that experiences of social connection with others through play may contribute to people’s wellbeing.  In other words, those who enjoyed playing were more likely to report positive wellbeing.

Crucially, the study is the first of its kind. Rather than asking players how much they play, it uses industry data on actual playtime. This let the Oxford University study team link psychological questionnaires along with true records of time spent playing games. This is important since in the past, studies tended to focus on self-reported time playing, which has been found by the study to be weakly correlated with reality.

“Without objective data from games companies, those proposing advice to parents or policymakers have done so without the benefit of a robust evidence base,” said Professor Andrew Przybylski, Director of Research at the Oxford Internet Institute, University of Oxford, and lead-author of the study.

Przybylski said, “this is about bringing games into the fold of psychology research that’s not a dumpster fire,” allowing us to explain and understand video games a leisure activity.

People smiling while playing video games. Image: cotton bro / Pexels

The researchers were surprised by how little data gaming companies actually had about their players — but also how little hard data had been used by previous studies for the potential harms and benefits of gaming.

The study explored the link between objective game time and well-being, examining the association between directly measured behaviour and subjective mental health. It also explored the roles of player experiences, specifically how feelings of autonomy, relatedness, competence, enjoyment and feeling pressured to play related to well-being.

In the study, 3,274 players were asked to complete a survey designed by the researchers to measure well-being, self-reported play, and motivational experiences during play. The survey findings were combined with objective behavioural data for the survey participants, collected by the video game companies.

Looking Ahead

The researchers hope the study will introduce a higher standard of evidence to discussions about the concept of video game addiction, or digital harms in general.

“You have really respected, important bodies, like the World Health Organization and the NHS, allocating attention and resources to something that there’s literally no good data on. And it’s shocking to me, the reputational risk that everyone’s taking, given the stakes. For them to turn around and be like, ‘hey, this thing that 95% of teenagers do? Yeah, that’s addictive, no, we don’t have any data,’ that makes no sense,” Przybylski said.

While the findings indicate an increase in wellbeing through playing video games, this may not be the case if research continues for more games where behavior deemed as toxic may be found.

 

– Amrit Jagpal

Altruism Gene

Why do people show signs of altruistic (selfless/unselfish) behaviour such as donating money to a homeless person on the street, or even helping someone with their homework? You might be thinking that people are displaying these signs of empathy and generosity, simply because they care about the health of others, and believe that they should treat others the way in which they wanted to be treated. This general understanding is flawed because it provides no evidence to why some people may act selflessly, while others are only concerned about their own well-being. In order to fit the missing pieces necessary to complete the puzzle, we must take into consideration the possibility of there being an Altruism Gene. This gene variation can alter the way in which human beings undergo various tasks on a day-to-day basis.

Monkeys grooming one another is a form of altruism by Muhammad Mahdi Karim

There exist one prevalent theory that explains the evolution of altruism through natural selection. The principle of inclusive fitness, or the amount of offspring equivalents that an organism supports, was defined by W.D. Hamilton in 1964. Hamilton demonstrated that it is beneficial for these organisms to attempt to raise the fitness of other members of the population in order to pass on their genes. This is known as kin selection, and applies mainly to organisms that are genetically related. Hamilton’s Rule declares that a gene controlling altruism will only spread in a population if:

c < rb

where c is the reproductive cost to the organism displaying altruistic behaviour, r represents how closely related the altruist is to the recipient (since the recipient is more likely to share the altruism gene if it is more closely related to the altruist), and b is the degree to which the altruistic act benefits the recipient.

In a recent German study, researchers sampled DNA from 101 individuals and looked at the COMT gene, which is linked to positive emotions and possibly altruistic acts. The gene has 3 variations: Val/Val, Met/Met, and Val/Met. The researchers gave the participants a certain amount of money and told them that they could anonymously donate to a charity. They discovered that those participants with the Val/Val and Val/Met variations donated twice as much as those with the Met/Met version of the gene. This study demonstrated the link between altruism and a specific gene for the first time. 

Percentage of money donated to an impoverished child in Peru based on the COMT gene variation by Martin Reuter, et al.

Scientists have only scratched the surface in this field of study, as they believe that there are many altruism-related genes that are yet to be found. Thus, this evolutionary puzzle will require much more time until it is completed, and I believe that these findings will help us gain further insight on the nature of human beings.

– Yoshinao Matsubara

Social Media Addiction – Do you have it?

Have you found yourself constantly checking your phone when someone likes your post or sends you a message? Then you might have what is called “social media addiction”.

Tiktok, an example of a popular social media app. (via Wikimedia Commons)

How does Social Media Addiction work?

Cognitive neuroscientists have shown that rewarding social stimuli – positive feedback by our peers, messages from loved ones – activate dopaminergic reward pathways. Dopaminergic reward pathways are pathways that release the neurotransmitter dopamine, a molecule that causes pleasure. The brain has three major dopaminergic reward pathways,  the nigrostriatal, the mesocortical, and the mesolimbic system. These pathways are activated when a user receives social stimuli on social media, specifically a notification.  Therefore, this is why when you receive a notification, you experience a feeling of pleasure.

Dopamine pathways in the brain labelled as the mesolimbic, nigrostriatal, and mesocortical pathway (via Wikimedia Commons)

When talking about social media, Facebook, Snapchat, Instagram, Tiktok are all prominently huge social apps that many teenagers/young adults use. Every notification from social media apps like these, whether it’s a message, a “like” on Instagram, or a Facebook notification is scheduled on a variable reward schedule, introduced by psychologist B.F. Skinner.  These apps are designed with the schedule in mind to maximize dopamine release, producing addictive tendencies similar to gambling and recreational drugs like cocaine to keep users using their products as much as possible.

How can I tell if I have social media addiction or will be likely to be addicted?

Addiction is normally classified as “engagement in the behaviour to achieve appetitive effects,  preoccupation with the behaviour, temporary satiation,  loss of control, and suffering negative consequences.” In the context of social media addiction, it would mean users would be:

  • Consistently checking our phones to engage with social media apps.
  • Only feeling satisfied when we engage with the apps.
  • Suffering negative feelings when using or not using social media.

As well,  a study demonstrates that users that struggle with “fear of missing out” (FOMO) behaviours predicted social media addiction. Additionally, it is also noted that attachment anxiety and avoidance predicted social media addiction, but this relationship was no longer significant after the addition of FOMO. Furthermore, the study finds users who display extraversion and neuroticism are more likely to use social media in the first place.

What does this mean for me if I’m addicted?

Social media addiction can lead to lower self-esteem, where low self-esteem is associated with lower satisfaction with life. Consequently, due to low self-esteem, it was further found that social media addiction was affecting depression indirectly. Many users suffering from social media addiction also found themselves experiencing time distortion, where those who were addicted were more likely to present significant upward time estimate bias. Additionally, the following Ted Talk by Bailey Parnell further highlights social media and its role in causing a poor mental health state.

Preventative Measures

Curing social media addiction is hard. As previously mentioned, companies that make the apps we use purposely design their apps to maximize the use of our dopamine-driven reward circuitry to keep us continually using their apps. Seemingly, the only way to cure the addiction is to simply stop using the apps, and remove them from our phones.

Martin Au-yeung

“Signs of Life Found in Space?!?” – A Media Misnomer

Whenever I find myself reading through the science headlines of any mainstream news website, it is not uncommon to find an article with a clickbait title like “Signs of Life Found on Venus”. To the average reader, this seems like huge news, as it’s not every day that we discover alien life in our own solar system. But, like many headlines today, this is far from the truth that this scientific discovery is presenting.

An example of not-so-true headlines

An example of a clickbait headline from scitechdaily.com regarding life on Venus

What was actually discovered?

While it is true that recently a team of astronomers from around the globe announced the discovery of a rare molecule called phosphine in the clouds of Venus, this does not mean that life as we know it was found on Venus. This recent discovery showed that in the higher atmosphere of Venus, there were detections of molecules of phosphine at a rate of twenty phosphine molecules per billion molecules in the atmosphere. The reason this is interesting is that phosphine (PH3) is mainly produced on earth by chemical reductions of phosphate in organic matter such as bacteria that have died and are decaying.

This discovery showed that somehow, there are chemical signs of decaying organic matter on Venus despite its harsh acidic atmosphere and high planetary temperatures. Here is a scientist from the Royal Astronomical Society detailing the findings in full:

YouTube Preview Image

What is the media getting wrong?

Even though scientists are extremely excited about this discovery, it’s not because they have definitively found life outside of our planet. Rather, scientists are excited about this discovery because it raises a lot of questions about how phosphine got to where it is on Venus. This is an important scientific discovery because it opens doors to new areas of research that can be done on determining where the phosphine in Venus’ atmosphere comes from.

The fact that there is this huge piece of evidence that goes against what we know regarding phosphine and conditions for life to exist is a huge stepping stone towards learning more about both subjects.

Photo of Venus. Photo Credit: NASA/JPL

So what other explanations are there?

There are lots of alternative explanations for where this phosphine could have come from besides organic life. For example, it’s possible that there is some unknown chemical process occurring on Venus that is creating these phosphine molecules. But even after extensive scientific review, astronomers are still unsure of where these molecules are coming from. So, unfortunately, we will not know the truth about these molecules’ origin until we go out and discover it for ourselves.

Until we have real, solid, observable evidence that the phosphine molecules we are discovering in our solar system (along with any other biomarkers) are actually being created by alien life forms, don’t believe any headlines you see reading “Signs of Life Found In Space!”, as they really should read “Potential Biomarker Molecules Found in the Upper Atmosphere of Venus”!

  • Written by Ryan Reiss, Nov. 2020

COVID-19 and alcohol use: Why managing your alcohol consumption is crucial during the COVID-19 pandemic

COVID-19 has taken the world by storm. It has forced countries to shut down and people to self-isolate. While self-isolation and shutdowns are effective methods of preventing the spread of COVID-19, they come with collateral effects. A recent report published by the Canadian Centre on Substance Use and Addiction (CCSA) found that 25% of Canadians (aged 35-54) are drinking more while at home during the COVID-19 pandemic due to boredom, stress, and/or a lack of regularity in their schedules.

Image: Nanos/CCSA – This shows the reasons people are drinking more during COVID-19, this is important as it gives us invaluable information on what is contributing to the rise in alcohol intake.

A similar increase was seen in Australia, where there was an increase of around 30% in alcohol bought compared to last year. Alcohol is used as a way to relax by many, but it can harbor many negative effects in a time such as the COVID-19 pandemic.

The World Health Organization (WHO) has recently debunked the misconception that drinking alcohol can provide you extra immunity against the Coronavirus.

Image: WHO/Europe/Twitter  – The image above shows the message the World Health Organization sent out on Twitter to explain to the public that alcohol does not help your body fight COVID-19.

In contrast, a study concluded that alcohol might increase vulnerability to the Coronavirus. Alcohol consumption at levels such as 5 – 6 drinks at a time or having more than 14 drinks in a week has a role in disrupting one’s immune system. It can do so by disrupting physical, chemical, and cellular responses that are a part of the body’s first line of defense. Furthermore, alcohol can impair t-cell recruitment which lowers the number of white blood cells that can destroy the invaders, which weakens the immune system. This is dangerous, especially with COVID-19 looming, as a weaker immune system leaves you more susceptible to infections.

In this video, Dr. Charity Baker states “Alcohol isn’t healthy and never was”, which explains that alcohol use is not a way to fight COVID-19

Alcohol can not only damage the immune system, but there is also a growing concern that the sudden increase in alcohol usage during the pandemic may result in greater cases of alcoholism. Alcoholism can lead to many health problems ranging from mental disorders to liver/heart problems. In a family setting, this can result in domestic violence and child negligence, contributing to the development of many other long-term problems such as Post-Traumatic Stress Disorder and depression.

The future is dependent on what actions people decide to take now. The increase in alcohol drinking can become a problem if not addressed properly. The way to prevent an increase in alcoholism and all of the consequential problems attached to it is to lower your alcohol intake to a low-to-moderate amount (maximum of 1 -2 drinks a day).  The effects of COVID-19 are here to stay for many years to come and if alcohol consumption is not controlled during this time, it will only add to the persistence of these effects.

– Harman Sandhu

Artificial Intelligence: What, if anything, do brains and computer vision have in common?

Did you know that artificial neural networks (which are computing systems) can process information in a similar way compared to the human brain? According to a study this month from the journal Current Biology, “artificial neural networks can perceive 3D objects in the same first-glance way our brains do”.

A diagram depicting the basic structure of an artificial neural network. Source: Wikimedia Commons

That being said, after all humans do use organic brains to model artificial neural networks. Therefore, it should not be groundbreaking news that such networks somewhat resemble natural brains. Well, at least not until they become similar in ways which we have not designed them to be.

Let’s start with explaining more about the human brain. It processes visual information through several sections, with each part combining different perceived properties of an object to create a full image. Scientifically, this is how we view and perceive objects.

However, the aforementioned study shows how neurons in the V4 area (the first section in the brain’s object vision) also represent 3D shape fragments, and not only 2D shapes as previously thought. According to TechXplore, this is a significant finding because it is opposite to the general scientific consensus for the last 40 years.

During this same research, scientists noticed something they did not expect: the same 3D patterns the brain utilizes to see are also used in an artificial neural network. As stated by Futurism, this was noticed upon looking further into the AlexNet algorithm (an advanced computer vision network).

Ed Connor, a Johns Hopkins University neuroscientist, discovered very similar natural & artificial neuron image response patterns in AlexNet’s layer 3, and the V4 section in the brain. He was “surprised to see strong, clear signals for 3D shape” as soon as the brain’s V4 section. However, it was even more shocking that the AlexNet algorithm also had such signals for 3D shapes. That’s because the algorithm had been solely designed to convert 2D photographs to object labels.

This shows how visual information is transferred through different sections of the human brain. Source: Wikimedia Commons

According to Connor, artificial networks are currently the most promising models for learning about the human brain. On the flip side, the brain contains the most reliable source of strategies for bringing artificial intelligence closer to natural intelligence.

This latest research hints at the new standard for artificial intelligence research. Rather than taking the traditional method of utilizing information known about the brain to build computers, researchers now take a reverse approach.

This image depicts how there are growing similarities between natural and artificial intelligence. Source: Pxfuel

That is, they rely on computers to discover how our brains function. It is quite interesting, yet strange, to find out that artificial computer vision systems can resemble the human brain’s perception in unintended ways.

– Jacqueline (Wai Ting) Chan

COVID-19: Could the common cold help protect you?

A woman blowing her nose while sick with the common cold. Image: Mojca J / Pixabay

The common cold is never any fun to deal with, however a past cold might also provide you with some protection from COVID-19, a recent study suggests by the University of Rochester Medical Center.

Research from infectious disease experts at the University of Rochester Medical Center have also suggested that people who have had COVID-19 may be immune to it for a long time, possibly even for the rest of their lives.

What’s the foundation?

Even though the virus that causes COVID-19 (SARS-CoV-2) is relatively new, it falls under a category of beta coronaviruses that cause about 15–20% of common colds.

Depiction of a coronavirus with crown-like spikes leading to where it got it’s name. Image: Daniel Roberts / Pixabay

When you catch a cold, your body fights against the virus through your immune system. While your body does this, the immune system “remembers” the virus for the future. This is so the next time that virus enters your system, your immune system will be able to fight back even faster.

Video:  How immunity defenders work against COVID-19

The evidence

The study is the first to focus on memory B cells — immune cells that can last for decades. Since memory B cells can survive for decades, they could protect COVID-19 survivors from future infections for a long time — but further research is needed to confirm this.

Blood samples being analyzed in the lab. Image: Ahmad Ardity / Pixabay

The researchers compared blood samples from 26 people who were recovering from mild to moderate COVID-19 symptoms and 21 healthy people who had their samples collected 6–10 years ago — long before they could be exposed to COVID-19.

The study found that B cells from the immune system that attacked previous cold-causing coronaviruses seemed to also recognize the coronavirus (SARS-CoV-2) that causes COVID-19 as a result of memory B cells being activated.

“When we looked at blood samples from people who were recovering from COVID-19, it looked like many of them had a pre-existing pool of memory B cells that could recognize SARS-CoV-2 and rapidly produce antibodies that could attack it,” said study authour Mark Sangster.

The study authors believe this could mean that anyone who has ever been infected by a common coronavirus — which is almost everyone — may have some amount of immunity to COVID-19. This means that if you were to be infected with COVID-19, the severity of your symptoms would be lower compared to those without pre-existing memory B cells for a common coronavirus.

What’s for the future?

The researchers will “need to see if having this pool of pre-existing memory B cells correlates with milder symptoms and shorter disease course — or if it helps boost the effectiveness of COVID-19 vaccines,” said study co-authour David Topham.

What can you do now?

While a past common cold may help lessen the symptoms of COVID-19, it does not mean that you should be trying to catch a cold. Instead, health officials advise for people to get their flu shots this season to reduce serious health complications and an additional burden on the health care system.

 

– Amrit Jagpal