(I read this one page article in my current Newsweek and it directed me to the online version. Well worth the read!)
Oct. 23, 2006 issue - Carl Marci was jubilant. After a year in therapy, trying to decide whether to propose to his girlfriend, he had finally taken the plunge—and she had said yes! As Marci recounted the story to his shrink days later, his therapist appeared to share the triumph with him. And it wasn't just an act. Marci, a psychiatrist himself at Massachusetts General Hospital, had wired himself and his therapist to special equipment that records heart-rate variability and "skin conductivity"—two measures that, taken together, indicate the ebb and flow of emotional arousal. When he examined the data later, Marci was stunned. Lines on the two charts rose and fell in perfect unison, revealing that his therapist was truly sharing his excitement. "It's no accident that we speak of being on the same wavelength with someone," says Marci. "In a moment like that, you really are."
continue article here.