Copyright © 2007 ZERO TO THREE Ed Tronick ( director of UMass Bostons .brThis video is about Using the Still Face Experiment, in which a mother denies her baby attention for a short period of time, Tronick describes how prolonged .brbrDr. Tronick speaks about the research he has conducted using variations of his Still-Face paradigm, and its implications regarding trust and bonding in child .brCopyright © 2007 ZERO TO THREE Ed Tronick ( director of UMass Bostons .