Word: experimenter
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By March, more than one million leaked documents from governments and corporations in Asia, the Middle East, sub-Saharan Africa and the former Soviet Bloc will be available online in a bold new collective experiment in whistle-blowing. That is, of course, as long as you don't accept any...
IN MACAQUES, MIRROR NEURONS HAVE THUS FAR BEEN LOCALIZED to just two brain areas (the parietal and premotor cortexes) that exercise control over voluntary movement. In humans, however, evidence suggests that neurons with mirror properties may be more widely distributed. For example, a recent experiment conducted by Keysers and his...
But while human mirror systems are similar, they are not identical. Individuals vary widely, for example, in their capacity to resonate with the emotional state of others--something that can be measured by psychological tests. In a sequel to their rancid-butter experiment, Keysers' team found that subjects with higher...
It was a fairly modest experiment, as these things go, with volunteers trooping into the lab at Harvard Medical School to learn and practice a little five-finger piano exercise. Neuroscientist Alvaro Pascual-Leone instructed the members of one group to play as fluidly as they could, trying to keep...
The finding was in line with a growing number of discoveries at the time showing that greater use of a particular muscle causes the brain to devote more cortical real estate to it. But Pascual-Leone did not stop there. He extended the experiment by having another group of volunteers...