In the future it is very possible scientists will be able to read minds with brain activity data. Someday our thoughts may no longer be personal and private as we perceive them to be today. Although this is still in very early stages of development, researchers have found significant information on how to actually read thoughts.
Jack Gallant shares," There are several limitations on "mind reading" directly from the brain" revealing that there are many things that prevent mind reading from occurring. Meanwhile, test candidates who have epilepsy are being tested to show the neural recordings towards the brains surface.
Just recently in March an extraordinary experiment of face recognition by the brain was performed by Alan Cowen. People were shown numerous photographs of faces and the scientists used the person's brain waves to reconstruct them. Surprisingly many of the faces turned out to be similar to what the original ones appeared as. This is a fairly new and extremely broad theory to have so many experiments and testing occurring on it. With the pace scientist are going now I believe this will be possible within 50 to 100 years at the least.
Landau, Elizabeth. "Scan a Brain, Read a Mind?" CNN. Turner Broadcasting System, 12 Apr. 2014. Web. 28 Apr. 2014. <http://www.cnn.com/2014/04/12/health/brain-mind-reading/index.html?hpt=he_bn5>.
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