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Video: The Secret Powers of Time

In this brilliant lecture-with-animation, Professor Philip Zimbardo discusses six different ways people's minds are focused on time. Do you focus on the past? If so, are you "Past Positive" (focusing on the good times) or "Past Negative" (focusing on failures)? Do you focus on the present? If so, are you hedonistic or do you just feel it doesn't pay to plan?

As Zimbardo says, "Most of us are here because we're future-oriented. We have learned to work, rather than play -- to resist temptation. But there's another way to be future-oriented. Depending on your religion, life begins after the death of the mortal body. To be future-oriented, you have to trust that when you make a decision about the future, it's gonna carry out." He proceeds to discuss how in different cultures, people have different paces of life, different time orientations, and how that affects their societies' function. He also goes into a detailed discussion of how computers and technology change our perception of time, and what that means for things like technology. Basically, Zimbardo makes a powerful argument that our individual (and collective) perception of time affects our health, wellbeing, and work habits.

There's a fun personal anecdote in the video as well. Zimbardo is Sicilian, and gets into a discussion of how there's an ongoing debate in Italy about splitting the country into two. It appears, at least in part, to boil down to a surprising linguistic anomaly of the Sicilian language -- watch for this around the 3:15 mark and enjoy.

Recommended for those interested in: science, linguistics, religion, time, geography, time, psychology, and sociology.

For the full non-animated lecture by Zimbardo (about 40 minutes), go here. It's worth it. There's also an MP4 download, so those of you behind YouTube blockers may be able to enjoy the lecture at work.

Note: Zimbardo was the primary researcher behind the infamous Stanford Prison Experiment in 1971. Read this interview discussing the project, 40 years later.

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Land Cover CCI, ESA
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Afternoon Map
European Space Agency Releases First High-Res Land Cover Map of Africa
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Land Cover CCI, ESA

This isn’t just any image of Africa. It represents the first of its kind: a high-resolution map of the different types of land cover that are found on the continent, released by The European Space Agency, as Travel + Leisure reports.

Land cover maps depict the different physical materials that cover the Earth, whether that material is vegetation, wetlands, concrete, or sand. They can be used to track the growth of cities, assess flooding, keep tabs on environmental issues like deforestation or desertification, and more.

The newly released land cover map of Africa shows the continent at an extremely detailed resolution. Each pixel represents just 65.6 feet (20 meters) on the ground. It’s designed to help researchers model the extent of climate change across Africa, study biodiversity and natural resources, and see how land use is changing, among other applications.

Developed as part of the Climate Change Initiative (CCI) Land Cover project, the space agency gathered a full year’s worth of data from its Sentinel-2A satellite to create the map. In total, the image is made from 90 terabytes of data—180,000 images—taken between December 2015 and December 2016.

The map is so large and detailed that the space agency created its own online viewer for it. You can dive further into the image here.

And keep watch: A better map might be close at hand. In March, the ESA launched the Sentinal-2B satellite, which it says will make a global map at a 32.8 feet-per-pixel (10 meters) resolution possible.

[h/t Travel + Leisure]

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iStock
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science
Scientists May Have Found the Real Cause of Dyslexia—And a Way to Treat It
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iStock

Dyslexia is often described as trying to read letters as they jump around the page. Because of its connections to reading difficulties and trouble in school, the condition is often blamed on the brain. But according to a new study published in Proceedings of the Royal Society B, the so-called learning disability may actually start in the eyes.

As The Guardian reports, a team of French scientists say they've discovered a key physiological difference between the eyes of those with dyslexia and those without it. Our eyes have tiny light-receptor cells called rods and cones. The center of a region called the fovea is dominated by cones, which are also responsible for color perception.

Just as most of us have a dominant hand, most have a dominant eye too, which has more neural connections to the brain. The study of 60 people, divided evenly between those with dyslexia and those without, found that in the eyes of non-dyslexic people, the arrangement of the cones is asymmetrical: The dominant eye has a round, cone-free hole, while the other eye has an unevenly shaped hole. However, in people with dyslexia, both eyes have the same round hole. So when they're looking at something in front of them, such as a page in a book, their eyes perceive exact mirror images, which end up fighting for visual domination in the brain. This could explain why it's sometimes impossible for a dyslexic person to distinguish a "b" from a "d" or an "E" from a "3".

These results challenge previous research that connects dyslexia to cognitive abilities. In a study published earlier this year, people with the condition were found to have a harder time remembering musical notes, faces, and spoken words. In light of the new findings, it's unclear whether this is at the root of dyslexia or if growing up with vision-related reading difficulties affects brain plasticity.

If dyslexia does come down to some misarranged light-receptors in the eye, diagnosing the disorder could be as simple as giving an eye exam. The explanation could also make it easy to treat without invasive surgery. In the study, the authors describe using an LED lamp that blinks faster than the human eye can perceive to "cancel out" one of the mirror images perceived by dyslexic readers, leaving only one true image. The volunteers who read with it called it a "magic lamp." The researchers hope to further experiment with it to see see if it's a viable treatment option for the millions of people living with dyslexia.

[h/t The Guardian]

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