Sex, Lies, and Brain Scans - How fMRI reveals what really goes on in our minds

The potential of fMRI is extraordinary. It allows us to observe brain activity in real time, build an understanding of thoughts and motivations, and discern unconscious biases. In a limited but real way we can now 'read minds'. Barbara Sahakian and Julia Gottwald explain the science, and consider the ethical implications of using these techniques.