Can privacy coexist with technology that reads and changes brain activity?
Ethicists, scientists and our readers consider the ethics of brain technology
The idea of letting outsiders inside the mind sparks a slew of ethical and privacy questions.
Julia Yellow
Gertrude the pig rooted around a straw-filled pen, oblivious to the cameras and onlookers — and the 1,024 electrodes eavesdropping on her brain signals.