THIS PAPER PRESENTS A SUMMARY OF BERLYNE'S THOUGHT ABOUT CURIOSITY AND COGNITIVE CONFLICT AS MOTIVATIONAL FACTORS IN KNOWLEDGE-SEEKING BEHAVIOR. THE SUMMARY IS BASED UPON FOUR OF BERLYNE'S WORKS THAT WERE SELECTED AS "CORE" TO THE DEVELOPMENT OF HIS THOUGHT. THIS PAPER CONCENTRATES UPON BRINGING OUT THE SIGNIFICANT DIFFERENCES OF THE SELECTED WORKS. THE AUTHORS DISCUSS BERLYNE'S CLASSIFICATION OF MOTIVATIONAL FACTORS, TYPES OF MOTIVATION OF EXPLORATORY BEHAVIOR, THE DETERMINANTS OF EXPLORATORY BEHAVIOR, THE ROLES OF SELECTED FACTORS (AROUSAL, CONCEPTUAL CONFLICT, EQUILIBRIUM, AND INFORMATION THEORY VARIABLES) AS DETERMINANTS OF HUMAN PERCEPTUAL CURIOSITY, AND EPISTEMIC (LEARNING) BEHAVIOR. THE AUTHORS CONCLUDE THAT A KNOWLEDGE OF THE EFFECTIVE USE OF CURIOSITY IN EDUCATIONAL PROCESSES IS NECESSARY FOR UNDERSTANDING INTELLECTUAL PROCESSES AND THAT THE WORK OF BERLYNE IS AN IMPORTANT RESOURCE FOR THOSE WHO WISH TO UNDERSTAND THE USE OF CURIOSITY IN EDUCATION. (AL)