Cuidado com os vossos pensamentos mais obscuros...

A capacidade de nos lerem os pensamentos e verem literalmente a nossa mente, já não está tão longe como pensaríamos! Cientistas no Japão construíram um sistema que consegue extrair imagens directamente do cérebro e depois visioná-las num monitor dum PC qualquer.

The scientists were able to reconstruct various images viewed by a person by analyzing changes in their cerebral blood flow. Using a functional magnetic resonance imaging (fMRI) machine, the researchers first mapped the blood flow changes that occurred in the cerebral visual cortex as subjects viewed various images held in front of their eyes. Subjects were shown 400 random 10 x 10 pixel black-and-white images for a period of 12 seconds each. While the fMRI machine monitored the changes in brain activity, a computer crunched the data and learned to associate the various changes in brain activity with the different image designs.

Then, when the test subjects were shown a completely new set of images, such as the letters N-E-U-R-O-N, the system was able to reconstruct and display what the test subjects were viewing based solely on their brain activity.

Caso para dizer que a médio prazo, nem os pensamentos mais escondidos que tenhamos estarão a salvo...


Fonte: Boing Boing