Agriculture
Seeds of the Future
Getting the dirt on carbon
Hungry bug seeks hot meal
Amphibians
Newts
Bullfrogs
Salamanders and Newts
Animals
The History of Meow
Fishy Sounds
Sleep Affects a Bird's Singing
Behavior
Reading Body Language
Worldís largest lizard is venomous too
Internet Generation
Birds
Swans
Chicken
Robins
Chemistry and Materials
Atom Hauler
Undercover Detectives
Spinning Clay into Cotton
Computers
Earth from the inside out
Secrets of an Ancient Computer
Middle school science adventures
Dinosaurs and Fossils
Dinosaur Eggs-citement
Dino Bite Leaves a Tooth
A Rainforest Trapped in Amber
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Polar Ice Feels the Heat
Undersea Vent System Active for Ages
Warmest Year on Record
Environment
A Change in Time
Missing Tigers in India
Bald Eagles Forever
Finding the Past
Fakes in the museum
A Big Discovery about Little People
Words of the Distant Past
Fish
Swordfish
Basking Sharks
Megamouth Sharks
Food and Nutrition
Healing Honey
Strong Bones for Life
Sponges' secret weapon
GSAT English Rules
Subject and Verb Agreement
Order of Adjectives
Who vs. Whom
GSAT Exam Preparation Jamaica
Mastering The GSAT Exam
GSAT Exam Preparation
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT Exam Preparation
GSAT Mathematics
A Sweet Advance in Candy Packing
Math is a real brain bender
Play for Science
Human Body
The tell-tale bacteria
Gut Microbes and Weight
Sun Screen
Invertebrates
Insects
Nautiluses
Termites
Mammals
African Wildedbeest
Hoofed Mammals
Vampire Bats
Parents
How children learn
Expert report highlights the importance to parents of reading to children!
Choosing a Preschool: What to Consider
Physics
Powering Ball Lightning
Electric Backpack
Spin, Splat, and Scramble
Plants
When Fungi and Algae Marry
White fuzzy mold not as friendly as it looks
Fungus Hunt
Reptiles
Cobras
Tortoises
Turtles
Space and Astronomy
Holes in Martian moon mystery
Big Galaxy Swallows Little Galaxy
Roving the Red Planet
Technology and Engineering
Slip Sliming Away
Beyond Bar Codes
Toy Challenge
The Parts of Speech
What is a Preposition?
Countable and Uncountable Nouns
What is a Noun
Transportation
Seen on the Science Fair Scene
Middle school science adventures
How to Fly Like a Bat
Weather
In Antarctica watch the heat (and your step)
Earth's Poles in Peril
Either Martians or Mars has gas
Add your Article

Math is a real brain bender

Donít feel bad if it took forever to wrap your brain around math. Mastering arithmetic requires major reorganization in the way the brain works. As kids grow up, the parts of the brain used to do math problems change. In elementary school kids, a region of the brain called the prefrontal cortex lights up while doing arithmetic. But by the time kids become adults, that region takes a backseat when crunching numbers, and another part of the brain, called the left superior temporal gyrus, kicks in. A nearby region called the parietal cortex also plays a bigger role in adultsí calculations. Scientists have shown that the left superior temporal gyrus may help connect the sounds of speech to written letters. The region may also get in gear when you play an instrument, helping you link the sound of your clarinet solo to the notes written on sheet music. Itís possible that this part of the brain helps adults tie the symbols for numbers to precise amounts, says Daniel Ansari, of the University of Western Ontario in London, Canada. Ansari and his colleagues conducted the study that uncovered the shift in brain regions used for math. To understand how the brain tackles math at different ages, Ansariís team matched 19 children, ages 6 to 9, with 19 adults, ages 18 to 24. The researchers showed both groups pairs of written numbers from one to 10, and then asked the kids and adults to say which number was bigger. Next, the people were shown pairs of images ó each one with a group of one to 10 squares. The volunteers were asked to say which image in the pair had more squares. During the experiment, the scientists took pictures of the participantsí brains using a functional MRI scanner. This machine measures blood flow, which offers clues about the activity of certain regions of the participantsí brains during each task. Adults performed the tasks better than children, but it took everyone longer to choose the bigger amount when the difference between the numbers was smaller. (For instance, deciding if two squares is more than three squares was harder than comparing one square and nine squares.) The scientists found that as the numbers got closer together, the parietal cortex got more active in adults, but didnít rev up in kidsí brains. ďOur results demonstrate that the brain basis of number processing changes as a function of development and experience,Ē Ansari says. The findings suggest that peopleís ability to link symbols with precise quantities builds on an older system used to gauge rough amounts. Animals like monkeys use this older number sense, for instance, to estimate the better deal when choosing between handfuls of sunflower seeds. After many years of math problems, however, peopleís parietal cortex takes over from the older system, jumpstarting translation of approximate amounts into symbolic, precise numerals. And after even more practice, the left superior temporal gyrus takes over major math tasks, Ansari suspects.

Math is a real brain bender
Math is a real brain bender








Designed and Powered by HBJamaica.com™