What FTD patients reveal about consciousness

Researchers are interested in disorders like frontotemporal dementia, or FTD, “because they hit the personality so hard, it makes you wonder what a personality is to begin with,” says Robert Kolker, author of “The Vanishing Family.” The research could also potentially address competing questions about the relationship between the brain, personality and consciousness. “FTD patients are, in a way, an amazing place to study this issue,” Kolker told Horizons host William Brangham. Horizons from P