Travis Thompson

This paper proposes that an organism's integrated repertoire of operant behavior has the status of a biological system, similar to other biological systems, like the nervous, cardiovascular, or immune systems. Evidence from a number of sources indicates that the distinctions between biological and behavioral events is often misleading, engendering counterproductive explanatory controversy. A good deal of what is viewed as biological (often thought to be inaccessible or hypothetical) can become publicly measurable variables using currently available and developing technologies. Moreover, such endogenous variables can serve as establishing operations, discriminative stimuli, conjoint mediating events, and maintaining consequences within a functional analysis of behavior and need not lead to reductionistic explanation. I suggest that explanatory misunderstandings often arise from conflating different levels of analysis and that behavior analysis can extend its reach by identifying variables operating within a functional analysis that also serve functions in other biological systems.

This book continues to be one of the more widely read books in psychology. Skinner's magnum opus is one of a handful of books that changed the face of modern psychology. The Behavior of Organisms provided the first example of the use of the operant method to measure behavioral effects of drugs and led to the development of teaching machines, programmed instruction and community treatment programs for juvenile delinquents. The functional unit Skinner defined in his doctoral dissertation and explicated in The Behavior of Organisms remains the foundation of modern behavior analysis. The operant was defined as a class of behavior bearing characteristic probability relations with environmental events previously occurring after instances of members of that class. The Behavior of Organisms is a remarkably mature book written by the author when he was in his early 30s. The regularities and principles explicated in The Behavior of Organisms stand largely intact after half a century, and the analytic strategy has been highly effective.

A festschrift volume for Prof Kenneth MacCorquodale retired from th e University of Minnesota. MacCorquodale was one of the first graduate students to study with B.F. Skinner. Chapters are concerned with the basic units into which behavior is analyzed according to functional analysis principles. A second theme was how such units once demonstrated can be integrated to comprise more complex naturalistic behavior, animal and human. Contributors included many leaders in the experimental and applied analysis of operant behavior.