Psychological novel is a significant sub-genre of the popular literature. The post-modern literary scenario is marked with the depiction of the psychological disorders created out of the contemporary life. It is seen that the advancement in science and technology has built a superstructure of the physical facilities to promote a good quality of life, but at the same time it is also highlighted that it could not sustain the psychological security. Tremendous changes in the ideologies, adverse effects of materialism, decline of humanism in the wake of capitalism, emotional insecurity in automatization of machine age and most importantly distorting human values have created many social, cultural and psychological problems. Literature of the period cannot be separated from these problems. In the delineation of the characters, modern authors cannot follow the ideal model of the character with the didactic motif. The present book attempts to investigate the psychological disorders in American novels