Agriculture
Silk’s superpowers
Chicken Eggs as Drug Factories
Getting the dirt on carbon
Amphibians
Frogs and Toads
Salamanders
Bullfrogs
Animals
Sea Giants and Island Pygmies
Professor Ant
Walktopus
Behavior
Video Game Violence
Brain cells take a break
A Recipe for Happiness
Birds
Quails
Swifts
Hummingbirds
Chemistry and Materials
Fog Buster
The Taste of Bubbles
Spinning Clay into Cotton
Computers
The Shape of the Internet
Troubles with Hubble
Computers with Attitude
Dinosaurs and Fossils
Hall of Dinos
Mammals in the Shadow of Dinosaurs
Ancient Critter Caught Shedding Its Skin
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
Earth
Deep History
Weird, new ant
Groundwater and the Water Cycle
Environment
Catching Some Rays
Pumping Up Poison Ivy
Fishing for Fun Takes Toll
Finding the Past
Untangling Human Origins
Big Woman of the Distant Past
A Big Discovery about Little People
Fish
Tuna
Saltwater Fish
Sting Ray
Food and Nutrition
Making good, brown fat
Food for Life
The Essence of Celery
GSAT English Rules
Capitalization Rules
Adjectives and Adverbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
GSAT Exam Preparation
Results of GSAT are in schools this week
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Detecting True Art
How a Venus Flytrap Snaps Shut
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
Hear, Hear
Foul Play?
Sea Kids See Clearly Underwater
Invertebrates
Crabs
Fleas
Oysters
Mammals
Dalmatians
Rhinoceros
African Mammals
Parents
Raise a Lifelong Reader by Reading Aloud
Children and Media
Expert report highlights the importance to parents of reading to children!
Physics
One ring around them all
Black Hole Journey
Hold on to your stars, ladies and gentlemen
Plants
Seeds of the Future
Underwater Jungles
The algae invasion
Reptiles
Asp
Lizards
Anacondas
Space and Astronomy
A Darker, Warmer Red Planet
Chaos Among the Planets
Planning for Mars
Technology and Engineering
Morphing a Wing to Save Fuel
Smart Windows
Supersuits for Superheroes
The Parts of Speech
Problems with Prepositions
Pronouns
What is a Preposition?
Transportation
Robots on the Road, Again
Troubles with Hubble
Where rivers run uphill
Weather
A Dire Shortage of Water
A Change in Climate
In Antarctica watch the heat (and your step)
Add your Article

The Electric Brain

It sounds like a miracle: A man with severe brain damage regained the ability to talk, eat, and move after doctors implanted an electrical device deep inside his brain. Since suffering a brain injury 6 years ago, the man had barely responded to the world around him. He couldn't eat, so tubes delivered nutrients to his body. When asked yes-no questions, he sometimes moved his eyes and thumbs, but his responses were not consistent. During a 10-hour operation, neurosurgeon Ali Rezai put two devices called electrodes deep within the center of patient's brain, in an area called the thalamus. Shaped like a walnut, the thalamus serves as the brain's "grand central station," says Rezai. It helps signals travel between the brain and the body's sensory organs, such as the eyes, skin, and tongue. Electrodes transmit electric currents. Rezai and colleagues proposed that transmitting currents deep in the brain would make the thalamus more active. And firing up the thalamus, they suspected, would wake up the whole brain. "We're essentially jump-starting the brain," Rezai says. Still, the doctors didn't know for sure if the treatment would help the patient. It didn't take them long to find out. Immediately after the surgery, the man opened his eyes and began responding to voices. Over 6 months, his doctors turned the electrical stimulation on and off to see what effects it was having. The patient never knew if the implanted device was on or not. These repeated tests proved that the patient's improvements were due to the stimulation of currents transmitted by the electrodes. The man remains severely disabled. His muscles are extremely weak from years of disuse. Still, he can do some of the motions involved in brushing his teeth and drinking from a cup, which he could not do before. The doctors now plan to test deep-brain electrodes on 11 more patients who also have severe brain damage. The results, they hope, will be just as encouraging.—Emily Sohn

The Electric Brain
The Electric Brain








Designed and Powered by HBJamaica.com™