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Though I pride myself on being familiar with Gandhi’s voluminous writings, there was one aspect of his thinking that never registered with me until I saw the back window of a truck the other day with a death’s head on the rear window and a bumper sticker that read, “Politically incorrect and proud of it.” When people call themselves “the Proud Boys” and display bumper stickers like that, what they’re telling us, between the lines, is they feel disrespected. We had better listen to them. Psychiatrist James Gilligan, who worked with men incarcerated for violent crimes for 25 years...

What causes the characteristic slowing of movement in patients with Parkinson’s disease? EEG recordings from the brains of Parkinson’s patients may offer some answers, according to researchers, in Electrical oscillations of nerve cells deep inside the brain and the cortex are pathologically coupled with one another. Researchers know this from recordings taken from the brains of Parkinson’s patients during surgery to fit a brain pacemaker. But is it possible to detect this coupling if the electrical nerve activity is only derived from the patient’s scalp, by electroencephalogram (EEG)...