Author Archives: ArrthyThayaparan

Can Video Games Help You Learn?

Canada currently has the third largest video game industry in the world. As a leader in the industry, it comes to no surprise that over 19 million Canadians identify as gamers. In doing so, as the societal interest in video games increases, so does the interest to research the effects of gaming, especially on students.

Child playing Fortnite. Image from Alex Haney, Unsplash

What does past research show?

Past research has shown that gaming by young people can lead them to develop a variety of detrimental behaviours. Children who played violent games had a higher likelihood of being more antisocial, more aggressive, and less empathetic than their non-gaming peers. Other studies have shown that excessive gaming can have a similar effect on a child’s brain as drugs and alcohol. This effect would lead to poor school performance and a higher likelihood of developing other addictions later in life. These results highlight the issues behind unhealthy gaming behaviour that goes beyond the limits of a hobby. While these results are very important to consider, there may be some benefits to gaming.

Is there any current research on gaming?

A recent study done by Ruhr-Universität Bochum compared the learning of gamers and non-gamers. Of the 34 participants, 17 volunteers did not play games regularly, and the other 17 played for 15+ hours a week. Both groups completed a weather prediction task while being recorded by an MRI.

In the task, participants were shown a combination of cue cards with varying symbols. Based on the cards shown, they had to guess whether that particular combination predicted sun or rain. With each guess, participants were given feedback on whether they were correct or not. This feedback would lead to learning of the combinations by all participants, but at varying rates.

Diagram of the brain showing the hippocampus, amygdala and cerebellum. Image from picturesboss.com

What are the effects of gaming on learning?

The results showed that gamers were significantly better at learning the card combinations with a faster learning curve and more correct answers. While the non-gamers did show learning, they were much slower in comparison. Also, the MRI scans showed that gamers had a stronger activation response in the hippocampus and surrounding regions of the brain. All of which are associated with learning and memory.

Based on these results, researchers were able to conclude that gaming helped individuals in probability-based tasks, which are activities that requires individuals to learn rules as they go. Gamers displayed a heightened ability to analyze and adapt to a new situation. This adaptation showed that players had a much better categorization performance, where they are able to generate and classify new information quickly. Thus illustrating that video games helped enhance learning performance rather than deter it.

While excessive gaming can have detrimental effects, there also are some beneficial factors. Video games, when done in moderation, allows individuals to learn more rapidly by training their hippocampus to be quick and effective. Video games create a challenging environment that pushes players to problem-solve and think creatively to achieve their goals. Looking ahead, researchers believe that further studies can be done to see whether games can help older people reduce the effects of memory loss.

– Arrthy Thayaparan

New Wireless Pacemaker Offers Treatment for Parkinson’s Disease

In Canada, over 10,000 people currently live with Parkinson’s disease with an additional 6,600 new cases being diagnosed every year. The disease is caused by a loss of dopamine producing nerve cells. Without dopamine, the nerves are unable to control body movements efficiently. As Parkinson’s advances, movements such as walking and talking become heavily affected. Due to the complexity of this disease, the reason behind the nerve damage is very difficult to determine. Thus, researchers are focusing on ways to alleviate patients’ difficulty in movement. Most recently, UC Berkeley scientists have discovered a new neurostimulator, WAND, that could change the course of neurological disorder treatment, especially Parkinson’s.

What is a neurostimulator?

The most effective method of Parkinson’s treatment is the implantation of a neurostimulator device to the brain. This is very similar to a cardiac pacemaker, since it is able to maintain appropriate circuits in the brain. The dysfunctional areas of the brain are targeted by electrical signals that block any irregular brain waves.

What is Deep Brain Stimulation?

The most used neurostimulator is the deep brain stimulation (DBS) device. As seen in the video below, the DBS electrode is implanted near target areas, with wires passing under the skin down to the shoulders and connected to the neurostimulator in the chest. The patient after recovery is provided with a remote or magnet that allows for the stimulator to be turned on and off at home. While this treatment has been seen to be mostly effective, the surgery process and control of the device can be very strenuous, especially considering the advanced age of most Parkinson’s patients. Therefore, UC Berkeley researchers have developed a new neurostimulator, called WAND, that is smaller and much more advanced in capabilities.

Video of How Deep Brain Stimulation Works. Courtesy of The Wall Street Journal

What is WAND?

WAND or wireless artifact-free neuromodulation device, contains wireless and autonomous capabilities. This means that the device once trained to recognize signs of tremors or seizures, is able to adjust the stimulation parameters and apply electrical signals on its own. WAND is also able to record brain wave activity while applying the treatment. These recordings would allow doctors to see how the patient is reacting during and after the treatment. This is a large advancement from the typical DBS treatments which either stop recording or record away from the target region.

Newly Developed WAND Device. Source: Rikky Muller, UC Berkeley

Has WAND been tested?

To test its effectivity, researchers applied the device in a study that taught subjects to use a joystick to move a cursor. WAND was able to detect the neural signatures that preceded the joystick motion, and delay it by applying electrical stimulation. Thus, showing that the closed-loop system and neurological recordings worked more effectively in a demonstration done by previous DBS devices.

In all, WAND is a brilliant new technology that is cost-effective, time-effective, and saves patient’s the worry of having to apply their own electrical stimulations. The device is able to treat and record simultaneously, which builds an up-to-date record of treatment. While there is still much research needed to look at potential side effects, this technology gives hopes to Parkinson’s patients of returning to their former, healthy selves.

          Arrthy Thayaparan

New Wireless Pacemaker Offers Treatment for Parkinson’s Disease

In Canada, over 10,000 people are currently living with Parkinson’s disease with an additional 6,600 new cases being diagnosed every year. The disease is caused by a loss of dopamine producing nerve cells. Without this vital neurotransmitter the nerves are unable to control body movements efficiently. As Parkinson’s advances, movements such as walking and talking become heavily affected. Due to the complexity of this disease, the reason behind the nerve damage is very difficult to determine. Thus, researchers are focusing on ways to alleviate patients’ difficulty in movement. Most recently, UC Berkeley scientists have discovered a new neurostimulator, WAND, that could change the course of neurological disorder treatment, especially Parkinson’s.

The most effective method of Parkinson’s treatment is the implantation of a neurostimulator device to the brain. This is very similar to a cardiac pacemaker; in which it is able to maintain appropriate circuits in the brain. The dysfunctional areas of the brain are targeted by electrical signals that block any irregular brain waves.

The most used neurostimulator is the deep brain stimulation (DBS) device. As seen in the video below, the DBS electrode is implanted near target areas, with wires passing under the skin down to the shoulders and connected to the neurostimulator in the chest. The patient after recovery is provided with a remote or magnet that allows for the stimulator to be turned on and off at home. While this treatment has been seen to be mostly effective, the surgery process and control of the device can be very strenuous, especially considering the advanced age of most Parkinson’s patients. Therefore, UC Berkeley researchers have developed a new neurostimulator, called WAND, that is smaller and much more advanced in capabilities.

WAND or wireless artifact-free neuromodulation device, contains wireless and autonomous capabilities. This means that the device once trained to recognize signs of tremors or seizures, is able to adjust the stimulation parameters and apply electrical signals on its own. WAND is also able to record brain wave activity while applying the treatment. These recordings would allow doctors to see how the patient is reacting during and after the treatment. This is a large advancement from the typical DBS treatments which either stop recording or record away from the target region.

Newly Developed WAND Device. Source: Rikky Muller, UC Berkeley

To test its effectivity, researchers applied the device in a study that taught subjects to use a joystick to move a cursor. WAND was able to detect the neural signatures that preceded the joystick motion, and delay it by applying electrical stimulation. Thus, showing that the closed-loop system and neurological recordings worked more effectively in a demonstration done by previous DBS devices.

In all, WAND is a brilliant new technology that is cost-effective, time-effective, and saves patient’s the worry of having to apply their own electrical stimulations. The device is able to treat and record simultaneously, which builds an up-to-date record of treatment. While there is still much research needed to look at potential side effects, this technology gives hopes to Parkinson’s patients of returning to their former, healthy selves.

          Arrthy Thayaparan