Humans May Have ’Magnetic’ Sixth Sense
2011 06 23
By Jeanna Bryner | LiveScience.com
Humans may have a sixth sense after all, suggests a new study finding that a protein in the human retina, when placed into fruit flies, has the ability to detect magnetic fields.
The researchers caution that the results suggest this human protein has the capability to work as a magnetosensor; however, whether or not humans use it in that way is not known.
"It poses the question, ’maybe we should rethink about this sixth sense,’" Steven Reppert, of the University of Massachusetts Medical School, told LiveScience. "It is thought to be very important for how animals migrate. Perhaps this protein is also fulfilling an important function for sensing magnetic fields in humans."
Past research has suggested that in addition to helping animals such as sea turtles and migratory birds navigate, the ability to detect magnetic fields could help with visual spatial perception. Reppert said to picture a magnetic-field coordinate system overlaid on objects we view.
"It may aid how animals perceive how objects are in time and space in a way we haven’t thought about before," said Reppert, who is a neurobiologist.
Animals’ magnetic sense is thought to rely on special proteins called cryptochromes, which are also found in the human retina. While past behavioral research has suggested humans can’t sense magnetic fields, with studies showing such a capability remaining controversial, there is evidence that geomagnetism affects the light system in our eyes.
To see if humans perhaps possessed this other sense, Reppert and his colleagues tested wild fruit flies, with their cryptochromes intact, and those that had their own cryptochromes replaced with the human version of the protein.
They placed the fruit flies into a T-shaped maze, with each arm equipped with a coil wrapped in such a way that when a current was sent through it, the coil became magnetized. The team varied which side was magnetized and its strength, which went up to eight times that of Earth’s magnetic field.
The flies with the human cryptochromes showed sensitivity to the magnetic fields — either avoiding them as they might naturally do if not acclimated to the magnetism, or showing a preference for the magnetized arm of the maze when trained with sugar rewards to go toward the magnetic field.
The human protein only worked in the blue range of light, the researchers found.
The research is detailed in the June 21 issue of the journal Nature Communications.
Article from: livescience.com
The Extrasensory perception of plants (Video)
Solar Storms Sparked By Giant ’Magnetic Rope,’ Study Finds
NASA Voyager Discover Magnetic ’Bubbles’ At Solar System’s Edge
Flamingos Drop From Siberian Sky: Locals Mystified (Magnetic Fields Reversing?)
Famed Magnetic Boy Is Probably Just Very Sticky
Foxes see Earth’s magnetic field and use it to target prey
Birds use quantum theory to literally ’see’ Earth’s magnetic field as they fly
Navy test fires electromagnetic cannon
Huge Magnetic Plasma ’Snake’ Spotted On the Sun
Protrude, Flow: Magnetic Sculpture (Video)
Mercury faces huge magnetic storms
Latest News from our Front Page
Magaluf bar where British girl was filmed performing sex acts on 24 men is shut down after police investigation into video
2014 07 26
Is this what the youth in Britain and Europe is spending their their energy, money, efforts and innocence on?
The young girl, pictured, was lured into performing multiple sex acts after organisers offered a free drink although she thought a holiday was on offer* Council officials launched an official investigation after the video went viral
Playhouse bar in Magaluf and entertainment ...
Prejudice is a Form of Common Sense - Hard-Wired Into the Human Brain, Says ASU Study
2014 07 26
Contrary to what most people believe, the tendency to be prejudiced is a form of common sense, hard-wired into the human brain through evolution as an adaptive response to protect our prehistoric ancestors from danger.
So suggests a new study published by Arizona State University researchers in the May issue of the "Journal of Personality and Social Psychology," which contends that, ...
The State is a Bully
2014 07 24
In the history of Western philosophy and social theory, no really silly idea has been more successful than the theory of the social contract.
It is in fact not a theory of the social contract. It is a theory of the political contract. It is the idea, promoted by Thomas Hobbes, John Locke, and Jean-Jacques Rousseau, that, at some point in ...
NATO Exercise in Ukraine Coincided with MH-17 Shoot-down
2014 07 24
Rapid Trident was omitted from the flurry of coverage on the shoot-down MH-17.
From the U.S. Army in Europe website:
Rapid Trident supports interoperability among Ukraine, the United States, NATO and Partnership for Peace member nations. The exercise helps prepare participants to operate successfully in a joint, multinational, integrated environment with host-nation support from civil and governmental agencies. ...
Warning of ’imminent’ terror attack in Norway
2014 07 24
Norwegians were warned Thursday of the concrete possibility of a terror attack occurring in that country at the hands of people with connections to an extremist group in Syria.
A press conference was called in Oslo, Norway on Thursday where an announcement was made of a "possible concrete threat" to national security in that country from terrorists related to an extremist ...
|More News » |