Blind Rats 'See' Through Geomagnetic Brain Implants

April 4, 2015 11:32 AM

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Blind Rats 'See' Through Geomagnetic Brain Implants

In an experiment that could significantly advance efforts toward providing a sensory input to blind people, scientists have shown that it is possible to enable blind rats to “see” by attaching tiny digital compasses to their brains. The findings of the study, published in the journal Current Biology, also open the doors to providing something akin to a sixth sense to sighted humans -- expanding their senses to detect even ultraviolet radiation and ultrasound waves.

In their experiments, the Japanese scientists attached a digital compass, similar to one found in smartphones, to the visual cortex of adult rats whose eyelids had been sewn shut. The compass was connected to a microstimulator that sent different electrical signals to the rat’s visual cortex when th...

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