Social psychology is the scientific study of how people's thoughts, feelings and behaviors are influenced by others. A major area is social influence in interaction, including obedience and conformity. Stanley Milgram's obedience experiments in 1963 found that 65% of participants administered what they believed were painful electric shocks to a learner when ordered by an experimenter, showing that ordinary people may obey authority even if it violates their conscience. The experiments demonstrated people's willingness to follow orders and the power of authorities to alter habitual thinking and command obedience.