A team of Japanese scientists have created a device that enables the processing and imaging of our brain's thoughts and dreams to appear on a computer screen.
While researchers have so far only created technology that can reproduce simple images from the brain, the discovery paves the way for the ability to unlock people's dreams and other brain processes.
The scientists focused on the image recognition procedures in the retina of the human eye. It is while looking at an object that the eye's retina is able to recognise an image, which is then changed into electrical signals sent into the brain's visual cortex.
The research investigated how electrical signals are captured and reconstructed into images, according to the study, which will be published in the U.S. journal "Neuron."
As part of the experiment, researchers showed testers the six letters of the word "neuron", before using the technology to measure their brain activity and subsequently reconstruct the letters on a computer screen.
Since Sigmund Freud published The Interpretations of Dreams over a century ago, the workings of the sleeping human mind have been the source of extensive analysis by scientists keen to unlock its mysteries.