Press release from the Max Planck Institute (8 Feb):
Our secret intentions remain concealed until we put them into action -so we believe. Now researchers have been able to decode these secret intentions from patterns of their brain activity. They let subjects freely and covertly choose between two possible tasks – to either add or subtract two numbers. They were then asked to hold in mind their intention for a while until the relevant numbers were presented on a screen. The researchers were able to recognize the subjects intentions with 70% accuracy based alone on their brain activity – even before the participants had seen the numbers and had started to perform the calculation.
[...] The work of Haynes and his colleagues goes far beyond simply confirming previous theories. It has never before been possible to read out of brain activity how a person has decided to act in the future.
This press release prompted a piece in the UK Guardian (9 Feb) that explored both the research and the possible applications of this knowledge:
The latest work reveals the dramatic pace at which neuroscience is progressing, prompting the researchers to call for an urgent debate into the ethical issues surrounding future uses for the technology. If brain-reading can be refined, it could quickly be adopted to assist interrogations of criminals and terrorists, and even usher in a “Minority Report” era (as portrayed in the Steven Spielberg science fiction film of that name), where judgments are handed down before the law is broken on the strength of an incriminating brain scan.”These techniques are emerging and we need an ethical debate about the implications, so that one day we’re not surprised and overwhelmed and caught on the wrong foot by what they can do. These things are going to come to us in the next few years and we should really be prepared,” Professor Haynes told the Guardian.