Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Your Brain Knew It Would Click This Link Before You Did
A fascinating study published in Nature Neuroscience shows graphically that we make decisions before we are consciously aware of having made them.
(This schematic shows the brain regions (green)
from which the outcome of a participant's decision can be predicted
before it is made. Courtesy John-Dylan Haynes.)
The experiment was simple; hit the button with the left hand, or with the right? For up to seven seconds, the test subjects showed increased activity in their frontopolar cortex, a brain region associated with high-level planning. Soon afterwards, activity moved to the parietal cortex, a region of sensory integration. Finally, the button was pushed. MRIs were used to measure brain activity; researchers were able to consistently predict which hand would be used to push the button.
"Your decisions are strongly prepared by brain activity. By the time consciousness kicks in, most of the work has already been done," said study co-author John-Dylan Haynes, a Max Planck Institute neuroscientist.
Although this is not a prediction, the situation is summed up neatly in the 2005 short story Second Person, Present Tense by Daryl Gregory. The story provides a fascinating examination of the problem of identity.
"They wired up patients and told them to lift one of their fingers, move it any time they wanted. Each time, the brain started the signal traveling toward the finger up to 120 milliseconds before the patient consciously decided to move it. Dr. S said you could see the brain warming up right before the patient consciously thought, now."
Read more details about how Brain Scanners Can See Your Decisions Before You Make Them; thanks to Conor for the tip on the article and the short story. Be sure to read Second Person, Present Tense by Daryl Gregory for yourself.
Scroll down for more stories in the same category. (Story submitted 4/16/2008)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 3 )
Related News Stories - (" Medical ")
ErythroMer Artificial Blood
'My chemists are all working on the preparation of the artificial blood.' - Dr. David H. Keller, M.D.
MouthPad Supports Head And Tongue Tracking
'The operation that had transformed half his body... had located the control switchboard in his teeth.'- Alfred Bester, 1956.
Drug Induces Hibernation-Like State In Humans
'... drugged and chilled and stowed in sleep tanks.' - Robert Heinlein, 1951.
Drug To Regenerate Teeth In Humans
'We want to do something to help those who are suffering from tooth loss or absence,' said lead researcher Katsu Takahashi.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Nuclear Plant Restarted To Power AI To Feed Us Dreams
'...Anything was possible in my imaginary environment.'
SpaceX's Starman Tesla Roadster In Space
'Somewhere in space, a chrome and blue automobile raced the green light of Earth.'
Pivotal Blackfly Electric Aircraft Lifts And Hovers
'That explains how it was so easy for me to remain motionless in midair...'
CORLEO Robotic Horse Concept Looks Ready To Ride
Imagine digging your heels in to a steam horse!
Who First Thought Of A Tin Foil Hat?
'We had discovered that metal was relatively impervious to the telepathic effect.'
Warp Drive Tech Back On The Menu
'Detailed plans for the construction of the Gundstetter-Halone warp drive were flowing.'
Huawei Pura X Folding Phattie Phone
Why can't we get more innovative phone configurations?
Sleep Pods At Daxing International Airport
'Do not waste your priceless company on the unappreciative folds of a sleep pod...'
Robot Baristas Learn Their Trade Without Paying Royalties
'...so we've promised him a generous pension from the royalties.'
JAXA Int Ball 2 Coming Right Along As Star Wars Remote
'Hocus-pocus religions and archaic weapons are no substitute for a good blaster at your side.'
Robot Bricklayer Or Passer-By Bricklayer?
'Oscar picked up a trowel. 'I'm the tool for the mortar,' the little trowel squeaked cheerfully.'
Robot Gas Station Attendant Pumps Gas For You
'... he waited for the robotrix attendant to finish fueling up his ship.'
Engineer Creates Crazy Motorized Track Hospital Bed
The Roujin Z system provides care to fully bedridden patients - and then some!
Tiny Flying Robot Weighs Just One Gram
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'
Some Ringworld Configurations Are Stable
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
TRANSFORM Dynamic Furniture Concept Becomes What You Need
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'
