 Ong's works also made possible an integrated theory of oral tradition which accounted for both production of content (the chief concern of Parry-Lord theory) and its reception.This approach, like McLuhan's, kept the field open not just to the study of aesthetic culture but to the way physical and behavioral artifacts of oral societies are used to store, manage and transmit knowledge, so that oral tradition provides methods for investigation of cultural differences, other than the purely verbal, between oral and literate societies.The most-often studied section of "Orality and Literacy" concerns the "psychodynamics of orality" This chapter seeks to define the fundamental characteristics of 'primary' orality and summarizes a series of descriptors (including but not limited to verbal aspects of culture) which might be used to index the relative orality or literacy of a given text or society.