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The idea that people can interfere with others’ thoughts and implant things in their minds was made famous by the 2010 film ‘Inception’.
But the concept is not completely science fiction, according to a group of researchers at Brown University.
The scientists have discovered a way to implant associations in people’s brains, without the subjects being aware of it happening.
Working with colleagues in Japan, scientists at Brown University have been studying how a functional magnetic resonance machine (FMRI) can ‘induce’ knowledge in someone through their visual cortex by sending signals that change their brain activity pattern.
This process is called Decoded Neurofeedback, or ‘DecNef’.
In a recent breakthrough, the group used a new technique to surreptitiously train a small group of volunteers to associate vertical stripes with the colour red and horizontal stripes with the colour green.
The people taking part thought they were seeing the colour red when looking at black and white stripes, and had no idea this was happening.
The association was induced by specifically targeting two early visual areas of the brain.
Named ‘V1′ and ‘V2′, the areas are the first parts of the cortex to process basic visual information coming from the eyes.
But scientists had not previously seen associative learning happening in these areas.