Contingencies Of Reinforcement

B. F. Skinner titled this book, Contingencies of Reinforcement, after the heart of his science of behavior. Contingencies relate classes of actions to postcedent events and to the contexts in which those action-postcedent relations occur. The basic processes seem straightforward, but many people do not know or understand the underlying theory. Skinner believed that ‘a theory is essential to the scientific understanding of behavior as a subject matter”. This book presents some of Skinner’s most sophisticated statements about theoretical issues. To his original articles, he added notes to clarify and expand subtle points. The book thus provides an overview of Skinner’s thinking about theory and the philosophy underpinning the science he began.

The contingent relationship between actions and their consequences lies at the heart of Skinner’s experimental analysis of behavior. Particular patterns of behavior emerge depending upon the contingencies established. Ferster and Skinner examined the effects of different schedules of reinforcement on behavior. An extraordinary work, Schedules of Reinforcement represents over 70,000 hours of research primarily with pigeons, though the principles have now been experimentally verified with many species including human beings. At first glance, the book appears to be an atlas of schedules. And so it is, the most exhaustive in existence. But it is also a reminder of the power of describing and explaining behavior through an analysis of measurable and manipulative behavior-environment relations without appealing to physiological mechanisms in the brain. As en exemplar and source for the further study of behavioral phenomena, the book illustrates the scientific philosophy that Skinner and Ferster adopted: that a science is best built from the ground up, from a firm foundation of facts that can eventually be summarized as scientific laws.

Animal learning and human learning traditions have been distinguishable within psychology since the start of the discipline and are to this day. The human learning wing was interested in the development of psychological functions in human organisms and proceeded directly to their examination. The animal learning wing was not distinguished by a corresponding interest in animal behavior per se. Rather, the animal learners studied animal behavior in order to identify principles of behavior of relevance to humans as well as other organisms. The two traditions, in other words, did not differ so much on goals as on strategies. It is not by accident that so many techniques of modem applied psychol ogy have emerged from the animal laboratory. That was one of the ultimate purposes of this work from the very beginning. The envisioned extension to humans was not just technological, however. Many animal researchers, B. F. Skinner most prominently among them, recognized that direct basic research with humans might ultimately be needed in certain areas but that it was wise first to build a strong foundation in the controlled environment of the animal laboratory. In a sense, animal learning was always in part a human research program in development.

In How and Why People Change Dr. Ian M. Evans revisits many of the fundamental principles of behavior change in order to deconstruct what it is we try to achieve in psychological therapies. All of the conditions that impact people when seeking therapy are brought together in one cohesive framework: assumptions of learning, motivation, approach and avoidance, barriers to change, personality dynamics, and the way that individual behavioral repertoires are inter-related.

Actions have consequences--and the ability to learn from them revolutionized life on earth. While it's easy enough to see that consequences are important (where would we be without positive reinforcement?), few have heard there's a science of consequences, with principles that affect us every day. Despite their variety, consequences appear to follow a common set of scientific principles and share some similar effects in the brain--such as the "pleasure centers." Nature and nurture always work together, and scientists have demonstrated that learning from consequences predictably activates genes and restructures the brain. Applications are everywhere--at home, at work, and at school, and that's just for starters. Individually and societally, for example, self-control pits short-term against long-term consequences. Ten years in the making, this award-winning book tells a tale ranging from genetics to neurotransmitters, from emotion to language, from parenting to politics, taking an inclusive interdisciplinary approach to show how something so deceptively simple can help make sense of so much.