Murray Sidman (April 29, 1923 – May 18, 2019) was an American behavioral scientist, best known for ''Sidman Avoidance'',Haraway, M. M., E. G. Maples, and S. C. Cooper. "Contiguous Approach Conditioning: A Model For Sidman Avoidance Learning." ''Psychological Reports'' 55.1 (Aug. 1984): 291-295. ''PsycINFO.'' Web. December 21, 2011. also called "free-operant avoidance",de Souza, Deisy Das Graca, and Antonio Bento A de Morales. "Probing Stimulus Control In Free-Operant Avoidance." ''Psychological Record''42.1 (Winter 1992): 41. ''Academic Search Premier.'' Web. December 21, 2011.Powell, Robert W. "Acquisition Of Free-Operant (Sidman) Avoidance In Mongolian Gerbils (Meriones Unguiculatus) And Albino Rats." ''Psychonomic Science'' 22.5 (Mar. 1971): 279-281. ''PsycINFO.'' Web. December 21, 2011. in which an organism learns to avoid an

aversive In psychology, aversives are suffering, unpleasant Stimulus (physiology), stimuli that induce changes in behavior via negative reinforcement or positive punishment (psychology), punishment. By applying an aversive immediately before or after a be ...

stimulus by engaging in a targeted response in the absence of stimuli indicating whether the aversive stimulus is forthcoming. Sidman's explanation of free-operant avoidance is an alternative to the

Miller A miller is a person who operates a mill, a machine to grind a grain (for example corn or wheat) to make flour. Milling is among the oldest of human occupations. "Miller", "Milne" and other variants are common surnames, as are their equivalents ...

- Mowrer two-process theory of avoidance.

Methodology

Methodologically, a "Sidman avoidance procedure" is an experiment in which the subject is periodically presented with an aversive stimulus, such as the introduction of carbon dioxide or an electric shock, unless they engage in a particular response, such as pulling a plunger, which delays the stimulus by a certain amount of time. His work on methodology for behavioral psychologists is the standard textbook in its field.

Career

Sidman took his PhD at Columbia in psychology from Columbia University 1952 under the advisership of William N. Schoenfeld. He worked at many research institutions, including Harvard Medical School, Johns Hopkins University Medical School, and the Walter Reed Army Institute of Research. He served as director of the Behavioral Sciences Department at the E.K. Shriver Center for Mental Retardation and Developmental Disabilities. Murray Sidman made significant contributions to the field of behavioral pharmacology through his groundbreaking research on the behavioral effects of drugs. His work focused on understanding how drugs can influence behavior and the underlying mechanisms involved. Sidman's research helped shed light on the behavioral principles that govern drug effects and addiction. Until his death in 2019, he was professor emeritus at Northeastern University. Dr. Sidman has held academic appointments at the University of São Paulo in Brasil, Keio University in Tokyo, Japan and the University of Canterbury in Christchurch, New Zealand.

Influence in the field

Sidman pioneered research on stimulus equivalence, and made important contributions to the discipline of

applied behavior analysis Applied behavior analysis (ABA), also referred to as behavioral engineering, is a behavior modification system based on the principles of respondent and operant conditioning. ABA is the applied form of behavior analysis; the other two are: ...

. He published three highly impactful books in the areas of applied behavior analysis and the experimental analysis of behavior. Tactics of Scientific Research "Tactics of Scientific Research" (1960)-Sidman's early work, focused on the

methodology In its most common sense, methodology is the study of research methods. However, the term can also refer to the methods themselves or to the philosophical discussion of associated background assumptions. A method is a structured procedure for bri ...

of scientific inquiry. This text explores the principles and practices of conducting rigorous scientific research and has been influential in shaping research approaches in various disciplines. Coercion and Its Fallout "Coercion and Its Fallout" (1989)-Perhaps Sidman's best-known book among scientists and thinkers outside of behavior analysis. In it, he examines the unintended consequences of using coercive tactics in attempts to control behavior. Sidman argues for a more humane and effective approach to behavior change, emphasizing positive reinforcement over punishment. Equivalence Relations and Behavior: A Research Story "Equivalence Relations and Behavior: A Research Story" (1994)-This book delves into Sidman's research on stimulus equivalence, a concept in behavior analysis that explores the emergence of complex behavioral relations between stimuli. "Equivalence Relations and Behavior" is a seminal work in this area, contributing to a deeper understanding of how individuals learn and generalize concepts. Murray Sidman's work has had a lasting impact on the field of

behavior analysis Behavioural science is the branch of science concerned with human behaviour.Hallsworth, M. (2023). A manifesto for applying behavioural science. ''Nature Human Behaviour'', ''7''(3), 310-322. While the term can technically be applied to the stu ...

. His emphasis on

empirical research Empirical research is research using empirical evidence. It is also a way of gaining knowledge by means of direct and indirect observation or experience. Empiricism values some research more than other kinds. Empirical evidence (the record of one ...

, ethical considerations, and a scientific approach to understanding behavior has influenced generations of psychologists and behavior analysts. Murray Sidman's books and research have left an indelible mark on the field of behavior analysis. His work continues to shape the way

psychologist A psychologist is a professional who practices psychology and studies mental states, perceptual, cognitive, emotional, and social processes and behavior. Their work often involves the experimentation, observation, and explanation, interpretatio ...

s and behavior analysts approach the study of behavior and the development of interventions for individuals with diverse needs. Dr. Sidman’s publications in peer-refereed journals number close to 100 and have defined much of our current understanding of stimulus control, stimulus equivalence, and avoidance behavior. His 1960 text, Tactics of Scientific Research, is considered the first primer on within- subject research methodology. It is a classic that is still used today. Other contributions have extended to important social problems. The second edition of his book Coercion and Its Fallout was published in 2000, and his treatment of “Terrorism as Behavior” was published in Behavior and Social Issues.

Sidman Avoidance Theory

Overview

Developed by Murray Sidman in 1953, the Sidman Avoidance Theory is a fundamental concept in

behavioral psychology Behaviorism is a systematic approach to understand the behavior of humans and other animals. It assumes that behavior is either a reflex elicited by the pairing of certain antecedent (behavioral psychology), antecedent stimuli in the environmen ...

. This theory provides insight into how organisms, including humans, learn to avoid negative consequences through specific behaviors. It represents a significant shift from traditional theories of behavior modification and learning processes.

Theoretical Framework

At its core, Sidman's theory contrasts with the classical 'escape' behavior paradigm. Traditional models focus on how organisms learn to avoid an ongoing negative stimulus. In contrast, Sidman Avoidance examines the learning process whereby an organism preemptively engages in behavior to avoid the negative stimulus altogether. This unique aspect of the theory emphasizes the proactive nature of learning in avoidance behaviors. Sidman's work emphasized the principles governing the acquisition and maintenance of avoidance behavior. He explored how organisms, both human and non-human, learn to perform specific behaviors to prevent or avoid aversive consequences. Murray Sidman's studies on avoidance conditioning significantly contributed to the understanding of the principles governing the acquisition and maintenance of avoidance behavior. His work laid the groundwork for further research in behavioral psychology and had practical implications for therapeutic approaches.

Experimental Foundations

The experimental foundations of Murray Sidman's Sidman Avoidance Theory are centered around a distinctive approach in

. This approach, known as the "Sidman avoidance procedure," involves experiments where the subject is exposed to an aversive stimulus, such as an electric shock or the introduction of carbon dioxide, at regular intervals. The subject can avoid this stimulus by performing a specific response, such as pulling a plunger or jumping over a barrier. Each successful avoidance response delays the presentation of the aversive stimulus by resetting the timer to zero. This method is also referred to as free operant avoidance conditioning. These experiments were pivotal in demonstrating the learning process in the absence of a warning signal before the aversive stimulus. This aspect was a significant departure from previous avoidance conditioning models, which typically included a warning signal. Sidman's research showed that subjects could learn to avoid an unpleasant stimulus through a specific behavior, even without any external cues signaling the imminent presentation of the stimulus.

Significance and Applications

Sidman's theory has had a profound impact on the field of psychology, particularly in understanding the mechanisms behind avoidance behavior. Its implications extend beyond basic psychology, influencing clinical approaches to treating

phobia A phobia is an anxiety disorder, defined by an irrational, unrealistic, persistent and excessive fear of an object or situation. Phobias typically result in a rapid onset of fear and are usually present for more than six months. Those affected ...

s and

anxiety disorder Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear such that a person's social, occupational, and personal functions are significantly impaired. Anxiety may cause phys ...

s. The theory has been instrumental in developing behavioral therapies that target avoidance behaviors, providing a more nuanced understanding of how such behaviors develop and are sustained.

Research Context

The development of the Sidman Avoidance Theory took place over several years and was influenced by Sidman's work at various institutions, including

Harvard Medical School Harvard Medical School (HMS) is the medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area in Boston, Massachusetts. Founded in 1782, HMS is the third oldest medical school in the Un ...

and Johns Hopkins University Medical School. His academic journey and professional appointments greatly contributed to the richness and depth of his research.

Stimulus Equivalence Theory

Murray Sidman had a significant influence on research examining stimulus equivalence—a topic that has now garnered decades of empirical examination. This theory rooted in the study of how organisms come to form relationships between different stimuli due to the organism's history of conditioning and interaction with their environment. To call a relationship an equivalence relation, there are three features that must be demonstrated:

Reflexivity

Reflexivity is a relationship between a stimulus and itself. Reflexivity is shown when an organism is trained A is equal to A, and subsequently emits responding indicating that A is equal to A.

Symmetry

Symmetry is a relationship between two different stimuli that operates in both directions. The organism may be taught that A is equal to B. Symmetry is shown if the organism emits behavior indicating that B is equal to A.

Transitivity

Transitivity describes a relationship between two differing stimuli. An organism is taught A is equal to B, and B is equal to C. If the organism can then demonstrate that A is equal to C (an untrained relation), a transitive relation has been identified.

References

{{DEFAULTSORT:Sidman, Murray 20th-century American psychologists Behaviourist psychologists Columbia University alumni Harvard Medical School people Johns Hopkins University faculty Northwestern University faculty 1923 births 2019 deaths