This volume contains 20 essays on current research in representative areas of psychology. The authors are professors and researchers at universities in the United States, England, Colombia, Poland, Australia, the Netherlands, France, and Canada. A wide range of topics is discussed. Included among these are social psychology of intergroup relations; color vision; endorphins and behavior; psychology in Latin America today; social motivation; touch in primates; group research; social approaches to abnormal behavior; behavioral studies of associative learning in animals; mental retardation; organizational development and change; brain function, synapse renewal, and plasticity; human behavior genetics; the psychology of law; information processing models; large group awareness training; organizational behavior; personnel selection and classification; consumer psychology; and environmental psychology. The volume concludes with author and subject indexes, cumulative indexes of contributing authors and chapter titles for volumes 29-33, and a list of chapter titles planned for volume 34 in 1983. (Author/RM)