A REVIEW OF MAIN TRENDS IN RECENT HUMAN RELATIONS RESEARCH IN THE UNITED STATES, PARTICULARLY AS ILLUSTRATED IN THE WORK OF SIGMUND LIVINGSTON FELLOWS, IS PRESENTED. THE FOCUS IS ON STUDIES DEALING WITH ETHNIC, RACIAL, OR RELIGIOUS CATEGORIES, AND ON RESEARCH DEALING WITH INTERGROUP PREJUDICE AND DISCRIMINATION. THE THREE MAJOR TRENDS IN RESEARCH IN RECENT YEARS ARE--IMPORTANT ADVANCES IN RESEARCH DESIGN AND METHODS, INCREASED ATTENTION TO THE FUNDAMENTAL RELATIONS BETWEEN PREJUDICE AND PERSONALITY CHARACTERISTICS, AND NEW APPROACHES TO THE STUDY OF CULTURAL, INSTITUTIONAL, AND GROUP VARIABLES IN INTERGROUP ATTITUDES AND BEHAVIOR. MAIN AREAS OF DISCUSSION INCLUDE--RESEARCH ON HUMAN RELATIONS AND THE SIGMUND LIVINGSTON PROGRAM, THE HISTORICAL BACKGROUND, ADVANCES IN RESEARCH DESIGN, PSYCHOLOGICAL INTERPRETATIONS OF PREJUDICE AS A FUNCTION OF PERSONALITY, STUDIES OF THE GROUP, CULTURAL, AND INSTITUTIONAL NEXUS OF INTERGROUP BEHAVIOR, RESEARCH ON GROUP RELATIONS AND THE LIVINGSTON FELLOWSHIP.