Agriculture
Chicken Eggs as Drug Factories
Seeds of the Future
Fast-flying fungal spores
Amphibians
Newts
Frogs and Toads
Salamanders
Animals
Blotchy Face, Big-Time Wasp
The History of Meow
Jay Watch
Behavior
Internet Generation
Swedish Rhapsody
Bringing fish back up to size
Birds
Cardinals
Dodos
Finches
Chemistry and Materials
Bandages that could bite back
Spinning Clay into Cotton
Cooking Up Superhard Diamonds
Computers
Electronic Paper Turns a Page
Batteries built by Viruses
Graphene's superstrength
Dinosaurs and Fossils
An Ancient Spider's Web
The man who rocked biology to its core
Downsized Dinosaurs
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Flower family knows its roots
Petrified Lightning
Springing forward
Environment
Improving the Camel
Food Web Woes
Cactus Goo for Clean Water
Finding the Past
A Human Migration Fueled by Dung?
Oldest Writing in the New World
Preserving Ancient Warrior Paint
Fish
A Jellyfish's Blurry View
Salmon
Codfish
Food and Nutrition
The Essence of Celery
Recipe for Health
Sponges' secret weapon
GSAT English Rules
Adjectives and Adverbs
Subject and Verb Agreement
Problems with Prepositions
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Mastering The GSAT Exam
GSAT Scholarship
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Setting a Prime Number Record
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Math is a real brain bender
Human Body
A Fix for Injured Knees
Sea Kids See Clearly Underwater
Remembering Facts and Feelings
Invertebrates
Flies
Dust Mites
Moths
Mammals
Minks
Echidnas
Dachshunds
Parents
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Strange Universe: The Stuff of Darkness
IceCube Science
Powering Ball Lightning
Plants
Assembling the Tree of Life
Stalking Plants by Scent
Getting the dirt on carbon
Reptiles
Tortoises
Cobras
Pythons
Space and Astronomy
Evidence of a Wet Mars
A Very Distant Planet Says "Cheese"
Sounds of Titan
Technology and Engineering
Shape Shifting
A Micro-Dose of Your Own Medicine
Smart Windows
The Parts of Speech
Countable and Uncountable Nouns
What is a Preposition?
What is a Noun
Transportation
Reach for the Sky
Charged cars that would charge
Robots on a Rocky Road
Weather
Weekend Weather Really Is Different
Either Martians or Mars has gas
In Antarctica watch the heat (and your step)
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™