Harvard psychologist, Dr. Mahzarin R. Banaji, delivers a lecture titled "Paradoxes of Mind & Society" at the Yale University Department of Psychology. Dr. Banaji describes her research into the unconscious prejudices that human beings may carry below the threshold of consciousness. She is also a key contributor for the development of the "Implicit Association Test" (IAT), which is used in a range of experiments to measure the magnitude of prejudices that may lie in the subconscious of the test taker. This video may be viewed in its entirety along with a description and transcript at the following link:

Democratic Vistas
http://www.yale.edu/terc/democracy/media/jan23.htm