Protecting Cows—and People—from a Deadly Disease
Keeping Bugs Away from Food
Hungry bug seeks hot meal
Salamanders and Newts
Tree Frogs
Cannibal Crickets
Little Beetle, Big Horns
Sleepless at Sea
Baby Talk
Chimpanzee Hunting Tools
Why Cats Nap and Whales Snooze
Chemistry and Materials
Popping to Perfection
Heaviest named element is official
A New Basketball Gets Slick
Batteries built by Viruses
Electronic Paper Turns a Page
Getting in Touch with Touch
Dinosaurs and Fossils
Early Birds Ready to Rumble
Big Fish in Ancient Waters
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E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
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Watering the Air
Meteorites may have sparked life on Earth
The Best Defense Is a Good Snow Fence
The Down Side of Keeping Clean
Where rivers run uphill
Finding the Past
Untangling Human Origins
A Big Discovery about Little People
Fakes in the museum
Electric Ray
Food and Nutrition
Yummy bugs
Building a Food Pyramid
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Order of Adjectives
Who vs. That vs. Which
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Scholarship
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
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42,000 students will sit for the GSAT Exam in two weeks
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42,000 students will sit for the GSAT Exam in two weeks
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Human Body
Spitting Up Blobs to Get Around
Cell Phones and Possible Health Hazards
Walking to Exercise the Brain
Flying Foxes
What Not to Say to Emerging Readers
Choosing a Preschool: What to Consider
Raise a Lifelong Reader by Reading Aloud
Strange Universe: The Stuff of Darkness
Hold on to your stars, ladies and gentlemen
Black Hole Journey
Hungry bug seeks hot meal
Fastest Plant on Earth
Underwater Jungles
Box Turtles
Gila Monsters
Sea Turtles
Space and Astronomy
Slip-sliding away
Evidence of a Wet Mars
Saturn's New Moons
Technology and Engineering
Supersuits for Superheroes
Dancing with Robots
Weaving with Light
The Parts of Speech
Countable and Uncountable Nouns
What is a Preposition?
Problems with Prepositions
Seen on the Science Fair Scene
Morphing a Wing to Save Fuel
Troubles with Hubble
Recipe for a Hurricane
The Best Defense Is a Good Snow Fence
Science loses out when ice caps melt
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Storing Memories before Bedtime

A good night's sleep may help your brain permanently file away lessons learned during the day. But, according to a new study, the brain begins processing and storing those memories long before it's time for bed—and continues to do so even while you're thinking about and doing other things. Recent studies have shown that the parts of the brain that we use to learn a task become active again during sleep. This activity, scientists suggest, could be the brain transferring memories from short-term to long-term storage (see "Memories Are Made with Sleep"). But the brain doesn't necessarily wait until the lights are out to begin processing those memories. To find out how the brain handles memories during waking hours, scientists gave 15 volunteers two tasks, each requiring different parts of the brain to learn. In one task, the subjects learned how to navigate a virtual town and then searched the town for an object. In the second task, they learned to predict where a sequence of dots would appear on a screen. Using a special machine, the researchers scanned the volunteers' brains right before and right after the tasks. They compared the two images to see whether the regions of the brain involved in learning the task were still active even after the task was completed. After a break, the scientists took a third image of each participant's brain. They wanted to determine whether these regions in the brain continued to be active after more time had passed. They discovered that, for at least an hour after learning a task, the brain stays active. It appears to continue processing the new information. Furthermore, the images showed that distracting the subjects doesn't affect their ability to store memories. The processing continues even when they're thinking about or doing other things. Some scientists say this could mean that sleep isn't essential for storing memories. Others disagree. Until that's settled, it's probably still better to be on the safe side, getting plenty of sleep.—C. Gramling

Storing Memories before Bedtime
Storing Memories before Bedtime

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