Experts warn of the risks of DIY brain hacking

In the 1995 film'Batman Forever,' the Riddler used 3-D television to secretly access viewers' most personal thoughts in his hunt for Batman's true identity. By 2011, the metrics company Nielsen had acquired Neurofocus and had created a'consumer neuroscience' division that uses integrated conscious and unconscious data to track customer decision-making habits. What was once a nefarious scheme in a Hollywood blockbuster seems poised to become a reality. Researchers can use P300, a brain signal that alerts us to important changes in our environment and holds what is important or relevant to you. Ethical issues arise when BCIs are able to'read' someone's mind who isn't actively cooperating - or giving consent Researchers can use P300, a kind of brain signal that alerts us to important changes in our environment, in an experimental setting to determine what is important or relevant to you.