The ability to detect electrical activity in the brain through the scalp, and to control it, will soon transform medicine and change society in profound ways. Patterns of electrical activity in the brain can reveal a person's cognition—normal and abnormal. New methods to stimulate specific brain circuits can treat neurological and mental illnesses and control behavior. In crossing this threshold of great promise, difficult ethical quandaries confront us.
MIND READING
The ability to interrogate and manipulate electrical activity in the human brain promises to do for the brain what biochemistry did for the body. When you go to the doctor, a chemical analysis of your blood is used to detect your body's health and potential disease. Forewarned that your cholesterol level is high, and you are at risk of having a stroke, you can take action to avoid suffering one.
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