Punishment and its putative fallout: A reappraisal

A Discussion of Positive Behavior Support and Applied Behavior Analysis in the Context of Autism Spectrum Disorder in the UK and Ireland

This article addresses the relationship between applied behavior analysis (ABA) and the emergence of positive behavior support (PBS) in context of autism spectrum disorder (ASD) in the UK and Ireland. Two overarching issues that are salient in this discussion are professional training and certification. To date, there has been a lack of standardized training or statutory requirements to practice PBS despite proponents insisting that its practice should be grounded in behavior analytic principles. Furthermore, there is an undercurrent of anti-ABA bias fueled by misinterpretation and unsubstantiated anecdotal claims used to promote an alternative "value based" approach to managing behavior.

Toward a further understanding of assent

Arranging assent opportunities is an increasingly common strategy for involving clients in therapeutic decisions within behavior analysis. Recent behavior-analytic articles have helped create a basic behavioral definition and conceptualization of assent, but much more guidance is needed for practitioners and researchers interested in embedding assent into their practices. The purpose of this article is to advance the conceptualization and understanding of assent and assent practices by refining previous definitions and conceptualizations of assent and providing six essential considerations for embedding assent into practice. The six considerations consist of determining the applicability and feasibility of assent, assessing assent-related skills, arranging assent procedures and teaching assent-related skills, arranging fair choices, selecting opportunities to assess assent, and informally assessing assent. Following the discussion of the considerations for assent practices, we issue a call for specific topics of research on assent.

Working hard to avoid: Fixed-ratio response effort and maladaptive avoidance in humans

Maladaptive avoidance of safe stimuli is a defining feature of anxiety and related disorders. Avoidance may involve physical effort or the completion of a fixed series of responses to prevent occurrence of, or cues associated with, the aversive event. Understanding the role of response effort in the acquisition and extinction of avoidance may facilitate the development of new clinical treatments for maladaptive avoidance. Despite this, little is known about the impact of response effort on extinction-resistant avoidance in humans. Here, we describe findings from two laboratory-based treatment studies designed to investigate the impact of high and low response effort on the extinction (Experiment 1) and return (Experiment 2) of avoidance. Response effort was operationalised as completion of fixed-ratio (FR) reinforcement schedules for both danger and safety cues in a multi-cue avoidance paradigm with behavioural, self-report, and physiology measures. Completion of the FR response requirements cancelled upcoming shock presentations following danger cues and had no impact on the consequences that followed safety cues. Both experiments found persistence of high response-effort avoidance across danger and safety cues and sustained (Experiment 1) and reinstated (Experiment 2) levels of fear and threat expectancy. Skin conductance responses evoked by all cues were similar across experiments. The present findings and paradigm have implications for translational research on maladaptive anxious coping and treatment development.

Contingent Electric Skin Shock: An Empirical or Ideological Issue?

Intractable self-injury, aggressive, and other destructive behaviors are real human conditions. Contingent electric skin shock (CESS) is a technology, based on behavior-analytic principles, used to ameliorate such behaviors. However, CESS has always been extraordinarily controversial. The Association for Behavior Analysis (ABAI), commissioned an independent Task Force to examine the issue. After a comprehensive review, the Task Force suggested the treatment should be available for use in select cases through a largely accurate report. Yet, ABAI adopted a position indicating CESS is never appropriate. On the issue of CESS, we are extremely concerned behavior analysis departed from the fundamental epistemology of positivism and is misleading nascent behavior analysts and consumers of behavioral technology. Destructive behaviors are extremely difficult to treat. In our commentary, we outline clarifications regarding aspects of the Task Force Report, proliferation of falsehoods by leaders in our field, and limitations to the standard of care in behavior analysis. We recommend using science to answer important questions instead of propagating false information at the expense of current and future clients with treatment refractory behaviors.

Aversive control versus stimulus control by punishment

Estes (1944) reported that adding electric shock punishment to extinction hastened response suppression but that responding increased when shock was removed. This result contributed to a view that reinforcement and punishment are asymmetrical processes because punishment has only indirect and temporary suppressive effects. Azrin and Holz (1966) suggested the result might be interpreted instead as shock serving as a discriminative stimulus for the absence of reinforcement. Here, to further examine potential stimulus control by punishment in a similar preparation, two groups of rats initially responded for food plus punishment and a third group for food alone. Reinforcement was then removed for all groups for the remaining three phases. With P and N denoting punishment and no punishment, the four phases for the three groups were: P-P-N-N, P-N-P-N, and N-P-N-N. We found some evidence for stimulus control by shock deliveries for group N-P-N-N (as suggested by Azrin and Holz), but all other changes in responding appeared due to introduction or removal of the aversive properties of shock. Although punishment may indeed have temporary effects under many circumstances, we argue that the view that this implies asymmetrical reinforcement and punishment processes was based on the flawed assumption that reinforcement has direct strengthening effects.

Grounding applied animal behavior practices in the experimental analysis of behavior

Some of the earliest applications outside the laboratory of principles derived from the experimental analysis of behavior (EAB), such as the pioneering work of Keller and Marian Breland, involved animals. This translational tradition continues to the present as EAB-related behavior principles are applied with increasing frequency to behavior management and training practices with animals in nonlaboratory settings. Such translations, and those populations to which they are applied, benefit from a rigorous experimental analysis of practices that are promulgated in popular outlets. These translations both affirm the generality of those principles and serve as goads for laboratory and field research that can further articulate extant principles, develop new ones, and refine methods of application and assessment. This review considered several areas of basic EAB research and contemporary applied animal behavior (AAB) practices in relation to one another: (1) response establishment and maintenance, (2) response reduction and elimination, (3) chaining and conditioned reinforcement, and (4) discriminative stimulus control. Within each topic, a selection of processes and procedures in both EAB and AAB work were reviewed in relation to one another.

Description and evaluation of a function-informed and mechanisms-based framework for treating challenging behavior

Individualization and iterative design are essential components of the assessment and treatment of challenging behavior. Currently, there are few validated frameworks for engaging in iterative processes. Due to the nature of single-case design, empirically rigorous evaluations of decision-tree processes are particularly prohibitive. Notwithstanding, evaluations are needed. In this paper we first describe a function-informed and mechanisms-based (FIMB) framework for selecting treatment components employed by a university-based practicum experience designed to expose pre-service practitioners to a valid treatment process for challenging behavior. Then, we share a completed retrospective consecutive case series across a 6-year period in which we conducted a technique analysis to identify which procedures were most commonly selected in the practicum, and the impact of those choices on client outcomes. The results suggest that the model can be highly effective for some, but not all, cases. Implications are discussed.

Effects of repeated exposure to escalating versus constant punishment intensity on response allocation

The present experiment investigated the effects of 1) repeated exposures to escalating punishment intensities and 2) repeated exposure to punishment after periods of vacation on response allocation between punished and unpunished responding in three groups of rats. The first group (intensity + vacation) experienced repeated exposures to escalating punishment intensities after a period of vacation (i.e., return to baseline) from punishment. The second group (intensity-only) experienced repeated exposures to escalating punishment intensities without vacation from punishment. The third group (vacation-only) experienced repeated exposures to a constant punishment intensity after a period of vacation from punishment. Results showed that superimposition of punishment on one of two concurrently available responses decreased allocation toward the punished response and increased allocation toward the unpunished response. Furthermore, greater changes in allocation were observed with the introduction of a moderate constant intensity than with the introduction of a low intensity that increased across sessions. Reexposure to punishment had different effects between the groups. Although there was evidence that high shock intensities can enhance the efficacy of lower intensities to shift allocation away from the punished response and toward the unpunished response, there was little evidence of changes in response allocation with reintroduction of punishment after a period of vacation.

Modeling resurgence with an evolutionary theory of behavior dynamics

McDowell's (2004) Evolutionary Theory of Behavior Dynamics (ETBD) is a computational theory that has reproduced a wide variety of behavioral phenomena observed in material reality. Here, we extended the generality of the ETBD by successfully replicating laboratory studies of resurgence with live animals using artificial organisms (AOs) animated by the theory. We ran AOs on concurrent random-interval random-interval (conc RI RI) schedules of reinforcement wherein one alternative (i.e., a target behavior) was reinforced while the other alternative (i.e., an alternative behavior) was not reinforced. Then, we placed the target behavior on extinction and reinforced the alternative response, producing a shift in allocation of responding from the target behavior to the alternative response. Finally, schedule thinning of the alternative response (i.e., downshifts) resulted in resurgence of target behavior. Our findings indicated that resurgence increased as a function of the relative downshift in reinforcement rate and magnitude, replicating findings from previous studies with live animals. These results further illustrate the utility of the ETBD for generating dynamic behavioral data and serve as a proof-of-concept for a novel computational approach for studying and understanding resurgence in future studies.

Increased responsiveness to punishment of cocaine self-administration after experience with high punishment

One behavioral feature of drug addiction is continued drug use despite awareness that this causes negative consequences. Attempts to model this feature in animals typically involve punishing drug self-administration with electrical footshock to identify individuals whose drug use is differently suppressed by punishment. Here we sought to further study individual responsiveness of drug use to punishment in rats self-administering intravenous cocaine. Rats were first trained during several weeks to self-administer cocaine under a fixed-ratio 3 schedule of reinforcement. Then, their self-administration behavior was punished with increasing intensity of footshock (i.e., from 0.1 mA to 0.9 mA, every 30 min). With increasing intensity of punishment, rats first continued to self-administer cocaine before eventually stopping near completely. When retested, however, drug use became more responsive to punishment and was suppressed by a low and initially ineffective footshock intensity (i.e., 0.1 mA). This increase in responsiveness to punishment was seen in all individuals tested, albeit with varying degrees, and was acquired after one single experience with an intensity of punishment that near completely suppressed drug self-administration. Mere passive, non-contingent exposure to the same intensity, however, had no such effect. Once acquired, increased responsiveness to punishment persisted during at least one month when rats were tested every week, but not every day. Finally, increased responsiveness to punishment was not observed after exposure to a non-painful form of punishment (i.e., histamine). Overall, this study reveals that initial responsiveness of drug use to punishment can change rapidly and persistently with experience. We discuss several possible mechanisms that may account for this change in punishment responsiveness and also draw some of the implications and future perspectives for research on animal models of compulsion-like behavior.