There’s something a bit dark about this impressive experiment, in which one rat telepathically gives orders to the other. New Scientist reports:
The world’s first brain-to-brain connection has given rats the power to communicate by thought alone. “Many people thought it could never happen,” says Miguel Nicolelis at Duke University. Nicolelis’s team has demonstrated a direct interface between two brains – with the rats sharing both motor and sensory information.
The feat was achieved by first training rats to press one of two levers when an LED above that lever was lit. A correct action opened a hatch containing water to drink. The researchers wired up the implants of an encoder and a decoder rat. The pair were given the lever-press task, but only the encoder rats saw the LEDs come on. Brain signals from the encoder rat were transmitted to the decoder rat. The team found that the decoders, despite having no visual cue, pressed the correct lever.
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