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Are Sleepwalking Killers Conscious?

Some people commit violent acts while asleep. In seeking to understand their brain states, scientists and physicians are investigating the murky borders of consciousness

By Francesca Siclari, Giulio Tononi and Claudio Bassetti

Group Dynamics Lend a Leader Charisma

Heads of state, chief executives and other leaders are not born with the power to inspire. They manufacture this magic dust in partnership with their followers

By S. Alexander Haslam and Stephen D. Reicher


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July 2012

Scientific American Space & Physics