Reasoning Continuously: A Formal Construction of Continuous Proofs

We begin with the idea that lines of reasoning are continuous mental processes and develop a notion of continuity in proof. This requires abstracting the notion of a proof as a set of sentences ordered by provability. We can then distinguish between discrete steps of a proof and possibly continuous stages, defining indexing functions to pick these out. Proof stages can be associated with the application of continuously variable rules, connecting continuity in lines of reasoning with continuously variable reasons. Some examples of continuous proofs are provided. We conclude by presenting some fundamental facts about continuous proofs, analogous to continuous structural rules and composition. We take this to be a development on its own, as well as lending support to non-finitistic constructionism.

     

Comparisons of standardized and interview-informed synthesized reinforcement contingencies relative to functional analysis

We compared the functions of problem behavior identified by (a) a functional analysis (FA), (b) an interview-informed synthesized contingency analysis (IISCA) that was informed by the results of an open-ended interview and a structured observation, and (c) a standardized-synthesized contingency analysis (SSCA) in which we synthesized three common functions of problem behavior across 12 individuals in a controlled consecutive case series. We then compared outcomes across assessments. The FA was sufficient in identifying the variables maintaining problem behavior for 11 of the 12 participants, replicating the findings of Fisher, Greer, Romani, Zangrillo, and Owen (2016). Error type (i.e., false positives, false negatives) and error prevalence were similar across functions identified by the IISCA and the SSCA, calling into question the utility of the open-ended interview and the structured observation that informed the IISCA.     

Treating destructive behavior reinforced by increased caregiver compliance with the participant's mands

Functional analyses sometimes do not identify momentary fluctuations in the function of destructive behavior (Bowman, Fisher, Thompson, & Piazza, 1997). In such cases, individuals may mand for the reinforcer that is currently most preferred and display destructive behavior if that mand goes unreinforced. In this study, we conducted a mand analysis to test whether destructive behavior functioned as a precurrent response that increased reinforcement for the participant's mands. We then evaluated a treatment that matched this function of destructive behavior by providing differential or time-based reinforcement of participant mands in accordance with multiple or chained schedules with reinforcement-schedule thinning. Decreases in destructive behavior averaged 97.4% across cases. We discuss these results relative to the importance of matching treatments for destructive behavior to operant functions for both traditional and idiosyncratic functions of destructive behavior.     

Injury characteristics across functional classes of self-injurious behavior

Self-injurious behavior (SIB) is inherently problematic because it can lead to injuries, including those that are quite severe and may result in loss of function or permanent disfigurement. The current study replicated and extended Rooker et al. (2018) by classifying the physical characteristics of injuries across groups of individuals with automatically maintained SIB (ASIB Subtypes 2 and 3) and socially maintained SIB. Individuals with Subtype 2 ASIB had the most frequent and severe injuries. Further, an inverse relation was found between the level of differentiation in the functional analysis and the number of injuries across groups. Studying the response products of SIB (the injuries) documents the risks associated with SIB, justifies the need for research and the intensive intervention, and advances knowledge of SIB. Additional research is needed to replicate these findings, and determine the variables that produce different characteristics of injury secondary to SIB.     

Mitigating resurgence of destructive behavior using the discriminative stimuli of a multiple schedule

Results of several recent translational studies have suggested that correlating contextual or discriminative stimuli with the delivery and withholding of reinforcement for the functional communication response (FCR) may mitigate resurgence of destructive behavior, but few, if any, have isolated the effects of those stimuli. In the present study, we first trained the FCR, brought it under stimulus control of a multiple schedule, and thinned its reinforcement schedule in one stimulus context. Next, we conducted resurgence evaluations (i.e., baseline, functional communication training [FCT], extinction challenge) in two novel contexts to test the effects of the discriminative stimuli on resurgence. We programmed one context to include the (a) S^D during the FCT phase to signal the availability of reinforcement for the FCR and (b) S^Δ during a subsequent extinction challenge to signal the unavailability of reinforcement for the FCR. The other context did not include the S^D during the FCT phase, nor the S^Δ during the extinction challenge. We expected to see greater persistence of the FCR in the context that included the S^D during FCT and less persistence of the FCR and less resurgence of destructive behavior in the context that included the S^Δ during the extinction challenge. Obtained results confirmed this latter prediction, but we observed no reliable difference when the S^D was present or absent during the FCT phase. Our results have relevance for practitioners in that they provide further empirical support for the use of discriminative stimuli when treating destructive behavior.     

CBT for Anxiety and Associated Somatic Complaints in Pediatric Medical Settings: An Open Pilot Study

Objective To examine the initial feasibility and potential efficacy of a cognitive-behavioral intervention for youth with anxiety disorders and non-medical somatic symptoms. Background Based on a strong relationship between somatic complaints and anxiety disorders, screening youngsters seeking medical care due to physical symptoms with no organic basis may enhance the recognition of anxiety disorders and facilitate access to appropriate services. Method Seven boys and girls, ages 8 through 15, with medically unexplained gastrointestinal complaints and anxiety disorders received a 12-session cognitive-behavioral intervention targeting anxiety and physical symptoms. Assessments were conducted at baseline and following treatment. Results All participants were classified as treatment responders. Three of the seven participants no longer met diagnostic criteria for their principal anxiety disorder. Children’s physical discomfort decreased from a moderate to minimal level based on self- and parent-reports. Conclusions Our modified cognitive-behavioral approach has promise for reducing anxiety and somatic symptoms in children seeking medical care.     

Intergenerational predictors of diurnal cortisol secretion in early childhood

The present study examined potential intergenerational links that may contribute to atypical patterns of diurnal cortisol secretion in early childhood. Salivary cortisol samples were collected across 1 waking day in 36 pre‐school children whose mothers are participants in an ongoing longitudinal project. Hierarchical Linear Modeling (HLM) identified statistically significant predictors of individual differences in daily cortisol trajectories. Children displayed relatively low post‐awakening values and flatter cortisol trajectories across the day as a function of unsupportive maternal behaviour, second‐hand smoke and maternal histories of social withdrawal in childhood. These results suggest that individual differences in young children's pattern of diurnal cortisol are associated with a variety of current and historical maternal characteristics and behaviours. The identification of intergenerational predictors of children's diurnal neuroendocrine functioning may provide new insights into the transfer of health and developmental risk from parent to child. Copyright © 2007 John Wiley & Sons, Ltd.     

Ethnographic Invention: Probing the Capacity of Laboratory Decisions

In an attempt to shape the development of nanotechnologies, ethics policy programs promote engagement in the hope of broadening the scope of considerations that scientists and engineers take into account. While enhancing the reflexivity of scientists theoretically implies changes in technoscientific practice, few empirical studies demonstrate such effects. To investigate the real-time effects on engineering research practices, a laboratory engagement study was undertaken to specify the interplay of technical and social considerations during the normal course of research. The study employed an ethnographic invention in the form of a decision model to structure reflection on ongoing social processes. A short series of interactions with one engineering researcher illustrates the deployment of the model in the form of an interview protocol. The cultural embedment of the protocol allowed it to function as a feedback mechanism, creating a more self-critical environment for knowledge production, and perturbing the system in research-tolerable ways.

Effects of Trainee Characteristics on Training Effectiveness

Six employee characteristics (conscientiousness, self‐efficacy, motivation to learn, learning goal orientation, performance goal orientation, instrumentality) and one work environment characteristic (transfer of training climate) were captured for 130 trainees in a large industrial company in an attempt to predict training effectiveness (training grade, supervisor evaluation of the application of training). The results strongly support the predicted links, although not all the predictor variables contributed a statistically significant share of the explained variance of the training outcomes. Motivation to learn and learning goal orientation were found to contribute most to predicting training outcomes. The implications of the results are discussed and the limitations of the study are noted, along with suggested avenues for future research.