Anthony Dickinson, University of Cambridge, UK. Robert A.Boakes, University of Sussex, Brighton.

• 1: Jerzy Konorski and Western Psychology; 2: Classical Conditioning as the Formation of Interstimulus Associations: Stimulus Substitution, Parasitic Reinforcement, and Autoshaping; 3: Habituation and Memory; 4: Conditioned Inhibition and Extinction; 5: Brain Processes and Conditioning; 6: Instrumental (Type II) Conditioning; 7: Motivational Processes; 8: Appetitive—Aversive Interactions and Inhibitory Processes; 9: Interactions Between Type I and Type II Processes Involving Positive Reinforcement; 10: Extinction, Inhibition, and Differentiation Learning; 11: Brain Mechanisms in the Inhibition of Behavior; 12: Cortical Mechanisms and The Inhibition of Instrumental Responses; 13: The Study of Association: Methodology and Basic Phenomena; 14: Selective Associations; 15: Constraints on Conditioning in the Writings of Konorski; 16: Cognitive Processes in Conditioning