Contact: Louis Bergeron
louisb3@stanford.edu
650-725-1944
Stanford University
Caption: A small camera (white object with green circuit board on top), poised above the fluid chamber in the center of the black stand, transmits images of the paramecia as they swim about in response to changes in the polarity of an electrical field applied to the fluid chamber by the game player using a laptop computer.
Credit: L.A. Cicero, Stanford University News Service
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