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Tag: brain

People get “brain drain” when smartphones merely exist in room

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[A person typing on the laptop with one hand while tapping the smartphone with the other hand.]

Have you – at least for a moment – ever imagined throwing your smartphone out the window, especially when you are trying to focus on your work? Now you might have a justification for your impulse. Behavioral scientists recently found that if your smartphone is merely present in your room, and even if you are not consciously thinking of it, you may still be distracted…

Heart rate variability: What it is and how it relates to mental health

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[Two red heartbeat waves extend from a black-and-white outline of a brain.]

A healthy heart is not a metronome. Even though most of us can follow our heartbeat with ease, in between each heartbeat is a period of time that varies in duration from one beat to the next. This difference in time between any consecutive heartbeat is known as heart rate variability (HRV), and researchers are increasingly using it as a tool to understand mental health…

Potluck of neuroscience: Meet microglia, your brain’s National Guard

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[An illustration of a microglia.]

One of the first things you’ll learn about if you start studying the brain is that it is made of cells called neurons. While neuroscientists have a decent understanding about how neurons work, it turns out that at least half of the brain is actually made of non-neuronal cells called glia*. Glia, named based on the Greek word for ‘glue,’ were initially thought to be a type of connective tissue in the nervous system, acting just as scaffolding, while the neurons did all the communicating. In the last couple decades, the growing field of neuroimmunology has highlighted the importance of a certain kind of glia: microglia, the brain’s resident immune cells…

A study on grammar and the bilingual brain

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[A cartoon of the brain, with pictures of a heart, a thought bubble, music notes, numbers, a molecule, and words.]

We humans have a unique capacity to acquire language, even as adults. However, if you have ever used Duolingo, you might have realized that children are more successful at acquiring languages than adults. This observation is puzzling; since adults are smarter than children, shouldn’t it be the other way around? One set of explanations for this paradox focuses on parsing — that is, applying our knowledge of grammar as sentences unfold incrementally…

Potluck of neuroscience: Meet microglia, your brain’s National Guard

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[An illustration of a microglia.]

One of the first things you’ll learn about if you start studying the brain is that it is made of cells called neurons. While neuroscientists have a decent understanding about how neurons work, it turns out that at least half of the brain is actually made of non-neuronal cells called glia*. Glia, named based on the Greek word for ‘glue,’ were initially thought to be a type of connective tissue in the nervous system, acting just as scaffolding, while the neurons did all the communicating. In the last couple decades, the growing field of neuroimmunology has highlighted the importance of a certain kind of glia: microglia, the brain’s resident immune cells.  

A moving target: How reliable are dementia assessments?

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MRI scanner photographed from inside.

This post is from ScIU’s archives. It was originally published by Emily Byers in February 2017 and has been lightly edited to reflect current events. “We’re going to do a few tests to see whether your mother is showing typical signs of dementia.” The word conjures chilling images of loved ones’ lives reduced to confusion… Read more »

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