Addictive behavior has never seemed rational because it persists in spite of drastic aversive consequences. This is a particular problem for models of addiction such as operant psychology which hold that behavior is controlled by its consequences. Inspite of claims to the contrary, Heymans target article illustrates how operant psychology resolves this contradiction. By using the matching law, Heyman suggests a mechanism that explains why delayed aversive events may not control behavior, and a conceptual framework in which we can understand (...) successful therapies. (shrink)

Welfare science has built its foundations on veterinary medicine and thus measures of health. Since bottlenose dolphins (Tursiops truncatus) tend to mask symptoms of poor health, management in captivity would benefit from advanced understanding on the links between health and behavioural parameters, and few studies exist on the topic. In this study, four representative behavioural and health measures were chosen: health status (as qualified by veterinarians), percentage of daily food eaten, occurrences of new rake marks (proxy measure of social activity), (...) and willingness to participate (WtP) in Positive Reinforcement Training sessions as qualitatively measured by their caretakers. These data were collected multiple times a day, every day over the course of a year from a multi-facility, large sample size (ndolphins= 51), allowing powerful analyses of the relationships between measures. First, it was found that dolphins with a higher WtP score also had a significantly better health status, ate a higher percentage of their daily food, and a lower occurrence of new rake marks. In addition, the WtP score was significantly lower up to 3 days before the weekly veterinary diagnosis of a decrease in health state; the percentage of daily food eaten and new rake mark measures did not show any significant change before such a diagnosis. These results suggest that WtP in training sessions is a potential behavioural measure of dolphin welfare, and an indicator of early changes in the dolphins’ health state. We therefore suggest measurement of WtP as a more practical and non-invasive tool to support veterinary care and general management. More work needs to be conducted to elucidate the influence of social behaviour on health, and to identify other potential welfare indicators, but this long-term study has shown that qualitative measures can be both practical and valid when assessing dolphin welfare. (shrink)

I will start by noting that Harry Frankfurt’s concept of wholeheartedness is in conflict with the intuition that free will should be efficacious in general, rather than pertain only to a small subset of decisions. To replace wholeheartedness I introduce a heuristic account for deliberation and decisions. I will show that introspective activity can lead to the individual having two types ‘introspective revelations’. By the onset of the introspective revelations a self-perpetuating loop is initiated. The loop consists of two elements (...) positively reinforcing each other. The two elements are introspective activity and introspective revelations. The effect is a propensity to ask oneself “what do I want?” whenever faced with a choice. This propensity, I submit, can give us what we want when we want free will. (shrink)

Reinforcement learning relies on the reward prediction error (RPE) signals conveyed by the midbrain dopamine system. Previous studies showed that dopamine plays an important role in both positive and negative reinforcement. However, whether various reinforcement processes will induce distinct learning signals is still unclear. In a probabilistic learning task, we examined RPE signals in different reinforcement types using an electrophysiology index, namely, the feedback-related negativity (FRN). Ninety-four participants were randomly assigned into four groups: base (no (...) money incentive), positive reinforcement (presentation of money rewards), negative reinforcement (removal of money losses), and combined reinforcement (money rewards and removal of money losses) groups. In addition, in order to evaluate the engagement of emotional activity in the different reinforcement processes, Positive and Negative Affect Schedule-Expanded Form (PANAS-X) scales were applied before and after the experiment to detect the emotional changes. The results showed that there was no difference between groups in the dopamine-related learning bias. However, compared to the other three groups, negative reinforcement elicited smaller FRN (the difference-wave measure) during the learning, stronger positive affect and joviality, and less fatigue after the learning, in which the difference between the negative and positive reinforcement groups was smaller. The results indicated that pure avoidance motivation may induce distinct emotional fluctuations, which influence the feedback processing. (shrink)

Reinforcement schemes are a class of non-Markovian stochastic processes. Their non-Markovian nature allows them to model some kind of memory of the past. One subclass of such models are those in which the past is exponentially discounted or forgotten. Often, models in this subclass have the property of becoming trapped with probability 1 in some degenerate state. While previous work has concentrated on such limit results, we concentrate here on a contrary effect, namely that the time to become trapped (...) may increase exponentially in 1/x as the discount rate, 1− x, approaches 1. As a result, the time to become trapped may easily exceed the lifetime of the simulation or of the physical data being modeled. In such a case, the quasi-stationary behavior is more germane. We apply our results to a model of social network formation based on ternary (three-person) interactions with uniform positive reinforcement. (shrink)

Many philosophers are building a solid case in favour of the knowledge account of assertion (KAA). According to KAA, if one asserts that P one represents oneself as knowing that P. KAA has recently received support from linguistic data about prompting challenges, parenthetical positioning and predictions. In this article, I add another argument to this rapidly growing list: an argument from what I will call ‘reinforcing parenthesis’.

The relative reinforcing value of food measures how hard someone will work for a high-energy-dense food when an alternative reward is concurrently available. Higher RRV for HED food has been linked to obesity, yet this association has not been examined in low-income preschool-age children. Further, the development of individual differences in the RRV of food in early childhood is poorly understood. This cross-sectional study tested the hypothesis that the RRV of HED to low-energy-dense food would be greater in children with (...) obesity compared to children without obesity in a sample of 130 low-income 3- to 5-year-olds enrolled in Head Start classrooms in Central Pennsylvania. In addition, we examined individual differences in the RRV of food by child characteristics and food security status. The RRV of food was measured on concurrent progressive-ratio schedules of reinforcement. RRV outcomes included the last schedule reached for cookies and fruit, the breakpoint for cookies in proportion to the total breakpoint for cookies and fruit combined, and response rates. Parents completed the 18-item food security module to assess household food security status and the Behavioral Activation System scale to assess reward sensitivity. Pearson’s correlations and mixed models assessed associations between continuous and discrete child characteristics with RRV outcomes, respectively. Two-way mixed effects interaction models examined age and sex as moderators of the association between RRV and Body Mass Index z-scores. Statistical significance was defined as p < 0.05. Children with obesity had a greater cookie Pmax [F = 4.95, p = 0.03], higher RRV cookie [F = 4.28, p = 0.04], and responded at a faster rate for cookies [F = 17.27, p < 0.001] compared to children without obesity. Children with higher cookie response rates had higher BMIZ ; and RRV cookie was positively associated with BMIZ for older children and boys, but not younger children or girls. The RRV of food did not differ by household food security status. Low-income children with obesity showed greater motivation to work for cookies than fruit compared to their peers without obesity. The RRV of HED food may be an important contributor to increased weight status in boys and future research is needed to better understand developmental trajectories of the RRV of food across childhood. (shrink)

Contemporary official parenting advice about disciplining children can be boiled down to ‘Be nice’. I first expand on this claim, drawing on primarily Birth to Five and secondarily Parentchannel.tv, showing that ‘Be nice’ breaks down into the absence of punishment and the expansion of both positive reinforcement and leading by example, these three components comprising an approach that is popularly described as positive parenting. Second, I examine the ways in which such apparently innocuous advice could be damaging: (...) positive parenting is arduous if not impossible, thereby setting parents up to fail, and partly because of this onerousness, it is arguably destructive of the spontaneity of the parent–child relationship. However, the difficulties of upholding a whole-heartedly spontaneous approach to parenting have led critics to endorse a model of the good parent as the reflective parent, and in conclusion I warn that this is just as coercive as the positive parenting model that it is designed to replace. (shrink)

This study elucidates the link and effect of ethical reinforcement in the post‐financial crisis era by taking two congruent directions to demonstrate that ethical reinforcement can be accomplished by either a continuous ethical training or a meticulous code of business ethics—which members of the mutual fund industry claim they adhere to—as both have a positive effect on the funds’ performance, including sizeable gains to investors. Furthermore, evidence divulges that ethical reinforcement moderates the performance of ethical or (...) socially responsible investments (SRI) funds more than nonethical investments, suggesting that a perspective of ethical or SRI classification of a fund alone is not sufficient, but it is necessary to have the institutional ethical environment and/or managers’ continuous ethical training. This result supports the notion of financial market discipline and reveals some factors behind SRI or ethical funds returns, notably during the period following the recent financial crisis. (shrink)

Effective conditioning requires a correlation between the experimenter's definition of a response and an organism's, but an animal's perception of its behavior differs from ours. These experiments explore various definitions of the response, using the slopes of learning curves to infer which comes closest to the organism's definition. The resulting exponentially weighted moving average provides a model of memory that is used to ground a quantitative theory of reinforcement. The theory assumes that: incentives excite behavior and focus the excitement (...) on responses that are contemporaneous in memory. The correlation between the organism's memory and the behavior measured by the experimenter is given by coupling coefficients, which are derived for various schedules of reinforcement. The coupling coefficients for simple schedules may be concatenated to predict the effects of complex schedules. The coefficients are inserted into a generic model of arousal and temporal constraint to predict response rates under any scheduling arrangement. The theory posits a response-indexed decay of memory, not a time-indexed one. It requires that incentives displace memory for the responses that occur before them, and may truncate the representation of the response that brings them about. As a contiguity-weighted correlation model, it bridges opposing views of the reinforcement process. By placing the short-term memory of behavior in so central a role, it provides a behavioral account of a key cognitive process. (shrink)

The intersectionality of fat black women has been in the cultural spotlight in recent years and a significant amount of them might feel invisible or even ask themselves why to exist. When one feels self-inexistence, an imagined reality reinforced by the world, sadness, depression, and anger install within a person. The imaginary inexistence is induced by the unaware shamelessness that others project in the ignored person, who feels being invisible, and being invisible in a digital world is to not exist. (...) In this paper, we answer why they should exist. We approach the issue with Positive Semiotics on desirability based on Positive Psychology, which focuses on understanding and facilitating well-being. We propose a semiotic framework for the construction of positive meaning paving the way from fatphobia to fat praise, passing by fat appraisal, to promote the well-being of fat black women. The proposed framework is the Positive Semiotics Construction, which is simultaneously an individual and collective construction of meaning for well-being, with a Sign-System Functional Model applicable to the digital world. Furthermore, a semiotic approach to Law and Social Norms may understand norms as the ability to send and receive signals for cooperation, which derives from moral appraisals of and reactions to the behavior of others and ourselves, consequently forming the normative underpinning of Law. Hence, the Positive Semiotics Construction might impact normative values and influence Law affecting the language of a society. (shrink)

Based on conversations between 10 Chinese children with Autism Spectrum Disorders and five therapists in the context of Naturalistic Intervention, this study investigated the therapists’ agreement expressions in this typical setting. The study found that the therapists mainly used four agreement strategies: acknowledgment, positive evaluation, repetition and blending. These four strategies could be used individually or in combination. The first three strategies and their combinations were used frequently during the therapeutic conversation. With the major occurrences in the post-expansion position, (...) the agreement expressions in the therapeutic conversation mainly performed three functions, namely, creating a supportive therapeutic relationship, serving as positive reinforcers and implementing interventions pertinent to communication skills. This study proposed that the therapists’ preferred use of agreement expressions in the intervention process could be explained by the features of Naturalistic Intervention. (shrink)

An experiment is reported which tests for positive confirmation bias in a setting in which individuals choose what information to buy, prior to making a decision. The design – an adaptation of Wason's selection task – reveals the use that subjects make of information after buying it. Strong evidence of positive confirmation bias, in both information acquisition and information use, is found; and this bias is found to be robust to experience. It is suggested that the bias results (...) from a pattern of reasoning which, although producing sub-optimal decisions, is internally coherent and which is self-reinforcing. (shrink)

The practice of recontact in genomic medicine has the power to help rectify long‐standing inequities in genetic testing. However, if not delivered systematically, recontacting practices also have the potential to reinforce these same inequities. Recontact, which occurs when contact between a clinician and patient is reinitiated after a relationship has ended, is often in search of or in response to updated interpretation or results. Currently, recontact is happening in a patient‐driven and ad hoc manner, undermining its potential to benefit all (...) patients. In this paper, the authors position justice as an additional argument in favor of systematic recontact and an argument against the predominantly patient‐initiated model. They argue that patients from equity‐deserving groups should be early beneficiaries of an emerging responsibility to recontact patients. The authors share illustrative clinical vignettes and propose role‐specific and systems‐level solutions to rightfully position recontact as a tool to promote a more equitable clinical genomics future. (shrink)

Major contributions emanating from Sagvolden et al.'s theory include elucidation of the role in attention-deficit/hyperactivity disorder (ADHD) of temporal information processing, social learning, and response extinction learning. Key issues include a need for clearer explanation of the relative role of impulsivity versus response suppression/inhibition in the dual process model, and delineation of genotype-environment correlations versus interactions in the social and experiential mechanisms posited.