Constraints on Constraints: Surveying the Epigenetic Landscape

It is now relatively commonplace to advocate the need for some sorts of constraints on learning and knowledge acquisition. The critical issues to cognitive science concern the sorts of constraints that are able to best model various phenomena of learning and development. Four types of constraints on learning are proposed to be used as an interpretative framework within which to: 1. Better understand the nature of current research: 2. Allow the exploration of alternative models of learning related phenomena, and 3. See more clearly needs for further research. Superficially similar learning phenomena can be modeled by very different configurations of underlying constraints with strong implications for the sorts of representational states that are involved. Each of the five papers in this issue (Brown, Gelman, Markman, Newport, and Spelke) is considered in terms of the configuration of constraints after which each author intends to model their phenomena and in terms of alternate configurations. The papers are construed as illustrating a diverse set of models of how constraints might guide learning, and while the evidence generally favors the configurations suggested by the authors, in each case alternative models are possible and motivate quite specific future research questions. More broadly, it is suggested that asking detailed questions about the sorts of Constraints types that could potentially model complex cases of natural knowledge acquisition helps motivate fundamental questions about learning and the nature of knowledge and that the five papers in this issue are superb examples of how adopting this kind of perspective has been fruitful research orientation.     

Research Misconduct in the Age of Open Science: The Case of STAP Stem Cells

In early 2014, Dr Haruko Obokata and her co-authors caused a global media storm by publishing two scientific papers in Nature on stem cells. The papers proposed a surprisingly simple new method called stimulus-triggered acquisition of pluripotency (STAP) to generate pluripotent stem cells for research purposes in a fast and inexpensive way. To the dismay of many, both papers were retracted within six months of their release due to data fabrication and falsification. The rise and fall of the STAP research illustrates the impacts of open science practices of quality control and validation on new scientific claims. In the STAP case, collective action generated through two online forums—the Knoepfler Lab Stem Cell Blog and PubPeer—exposed not only data manipulation in the two papers but also the irreproducibility of the purported new cellular reprogramming method. The case brings to the fore the tentative possibilities as well as potential pitfalls of ‘accelerated virtual witnessing’ through crowdsourced post-publication peer reviews that value accessibility and inclusiveness. Indeed, it calls for empirically grounded discussion on the ongoing reconfiguration of the shared system of values and norms or the moral economy of science.     

Strategic and Nonstrategic Information Acquisition

Communication researchers routinely assume that information seeking is a strategic, goaldirected process; however, several domains of theory and research suggest that potentially consequential information may be acquired nonstrategically. Dual‐process theories and research concerned with automaticity and the role conceptual short‐term memory (CSTM) plays in visual information processing are used to illustrate both the ubiquity of nonstrategic information acquisition and its potential consequences on judgments and behavior. Theoretical and methodological implications of nonstrategic information acquisition for the study of information seeking are discussed.     

The Role of Cognitions in OCD Treatment: Toward Rapprochement

The authors of the papers in this special issue have underscored the efficacy of both psychological and pharmacological treatments for OCD. Despite the potency of these interventions, complete symptom remission rarely occurs. Furthermore, problems related to treatment drop‐out, the persistence of residual symptoms despite adequate therapy, patients' vulnerability to relapse and recurrence, and the lack of a clear method for managing co‐morbidity or treating OCD subtypes remain incompletely addressed. This response to the authors' papers evaluates their positions and extends their papers by examining issues such as how cognitive therapy and exposure and response prevention can best be integrated, the role of medication in OCD treatment, factors that impact treatment readiness and/or resistance, and the need for effectiveness research.     

Literacy acquisition influences children's rapid automatized naming

Previous research has established that learning to read improves children's performance on reading‐related phonological tasks, including phoneme awareness (PA) and nonword repetition. Few studies have investigated whether literacy acquisition also promotes children's rapid automatized naming (RAN). We tested the hypothesis that literacy acquisition should influence RAN in an international, longitudinal population sample of twins. Cross‐lagged path models evaluated the relationships among literacy, PA, and RAN across four time points from pre‐kindergarten through grade 4. Consistent with previous research, literacy showed bidirectional relationships with reading‐related oral language skills. We found novel evidence for an effect of earlier literacy on later RAN, which was most evident in children at early phases of literacy development. In contrast, the influence of earlier RAN on later literacy was predominant among older children. These findings imply that the association between these two related skills is moderated by development. Implications for models of reading development and for dyslexia research are discussed.     

MNEMONIC TEXT‐PROCESSING STRATEGIES: A TEACHING SCIENCE FOR SCIENCE TEACHING

This article reports on the development and evaluation of a two‐component mnemonic strategy for teaching botany concepts. One component, a pictorial “mnemonomy”, was targeted at learning a hierarchically organized plant‐classification system; and the second component, based on the mnemonic “keyword” method, was targeted at learning the specific defining characteristics of the various plant groups. It was hypothesized that this dual mnemonic approach would be more useful than the usual figural‐taxonomy approach in allowing college students to acquire both higher‐order structural and lower‐order detail information‐‐the “forest” andthe “trees”, as it were. The research results strongly support the hypothesis. Especially important to this conclusion was the finding that relative to traditional instruction, mnemonic instruction facilitated: (1) the acquisition of both classification and characteristic information; and (2) inferential thinking on a transfer (problem‐solving) task that required novel manipulations of the learned concepts. Performance gains associated with the mnemonic condition were long‐term, still being manifested on delayed‐test measures. A number of theoretical and educational implications of the research are considered     

Theory of mind and mental state discourse during book reading and story‐telling tasks

This article presents three studies conducted in Canada and Australia that relate theory of mind (ToM) development to mental state discourse. In Study 1, mental state discourse was examined while parents and their 5–7‐year‐old children jointly read a storybook which had a surprise ending about the identity of the main character. Comments specific to the mental states of the story characters and discourse after the book had ended were positively related to children's ToM, and this was due to parent elaborations. Studies 2 and 3 examined children's mental state discourse during story‐telling tasks, and in both, mental state discourse of children during narrative was concurrently related to ToM performance. While research has shown that mental state discourse of parents is related to children's ToM acquisition, the current research indicates that children's spontaneous use of mental state language examined outside of the interactional context is also a strong correlate.     

All Together Now: Concurrent Learning of Multiple Structures in an Artificial Language

Natural languages contain many layers of sequential structure, from the distribution of phonemes within words to the distribution of phrases within utterances. However, most research modeling language acquisition using artificial languages has focused on only one type of distributional structure at a time. In two experiments, we investigated adult learning of an artificial language that contains dependencies between both adjacent and non‐adjacent words. We found that learners rapidly acquired both types of regularities and that the strength of the adjacent statistics influenced learning of both adjacent and non‐adjacent dependencies. Additionally, though accuracy was similar for both types of structure, participants’ knowledge of the deterministic non‐adjacent dependencies was more explicit than their knowledge of the probabilistic adjacent dependencies. The results are discussed in the context of current theories of statistical learning and language acquisition.     

The Spiritual Self‐In‐Relation: Empathy and the Construction of Spirituality Among Modern Descendants of theSpanish Crypto‐Jews

The research that is presented here explores the role that empathic attachment plays in the development of the religious self. Based on an ethnographic study of modern descendants of the Spanish crypto‐Jews, the work applies self‐in‐relation theory to the study of spirituality and religious belief acquisition among a population of individuals who, in adulthood, have modified their religious world view as a result of their crypto‐Jewish heritage. The findings of the research expand the parameters of self‐in‐relation theory in three important ways: 1) through an examination of the role that empathic attachment plays in adult conversion patterns; 2) through the elaboration of a developmental model that considers the significance of empathic attachment for sons as w ll as daughters; and 3) through an investigation into the relationship between ethnicity and spiritual development.     

Early precursors and enabling skills of reading acquisition

Research on early linguistic precursors and enabling skills of reading acquisition among young children is reviewed. Language development starts early in infancy when the child learns to categorize the speech sounds according to the pattern typical of the mother tongue. Equipped with these sound categories the child is ready to learn to segment words from the sound stream and to understand and to use words. The precise phonological representation of words will facilitate the important development of phonological awareness, a basic prerequisite for reading acquisition. This paper reviews some of my longitudinal research and training studies indicating the causal direction of the relation between phonological awareness and reading and includes some ongoing studies, where gender differences, socio‐economic factors, dose‐response‐effects and motivational factors are explored. Preventive and remedial implications of the findings are pointed out. Finally, the complexity of the causal relationships between different aspects of early language development, including genetic influences and later reading is pointed out.     

Before and after the vocabulary spurt: two modes of word acquisition?

This paper focuses on early lexical development, and especially the period around 18 months known as the vocabulary spurt. We first propose that this period corresponds to a shift from an associationist to a referential lexical acquisition mechanism following the developmental coupling of specific pre‐linguistic and cognitive abilities. This latter mechanism would allow the acquisition of genuine words, i.e. links between phonetically specified sound patterns and object categories. We then review the literature on early lexical acquisition by typically developing infants and infants with Down and Williams syndrome, and report some data that were recently collected on this issue. We conclude that the data so far are congruent with our proposal, but because they remain insufficient, we propose some future research that focuses on the relation between pre‐linguistic and cognitive developments.     

No decision‐maker is an Island: integrating expert advice with information acquisition

The present research examined the social context of information acquisition. The main purpose was to examine how decision‐makers' information acquisition processes changed when they were provided access to expert advice. Results indicated that all decision‐makers opted to acquire advice; however, they typically did so only after completing over 75% of their own information search. Decision‐makers agreed more with the advice as task complexity increased, but, in general, searched information in two stages—i.e., a pre‐advice “hypothesis generation” stage and a post‐advice “hypothesis testing” stage. To behave in an adaptive manner, decision‐makers could have used expert advice either to increase their decision accuracy or to reduce their effort expenditure (or both); they chose the former. Implications and further extensions are discussed. Copyright © 2006 John Wiley & Sons, Ltd.     

Phonotactic acquisition in healthy preterm infants

Previous work has shown that preterm infants are at higher risk for cognitive/language delays than full‐term infants. Recent studies, focusing on prosody (i.e. rhythm, intonation), have suggested that prosodic perception development in preterms is indexed by maturational rather than postnatal/listening age. However, because prosody is heard in‐utero, and preterms thus lose significant amounts of prenatal prosodic experience, both their maturation level and their prosodic experience (listening age) are shorter than that of full‐terms for the same postnatal age. This confound does not apply to the acquisition of phonetics/phonotactics (i.e. identity and order of consonants/vowels), given that consonant differences in particular are only perceived after birth, which could lead to a different developmental pattern. Accordingly, we explore the possibility that consonant‐based phonotactic perception develops according to listening age. Healthy French‐learning full‐term and preterm infants were tested on the perception of consonant sequences in a behavioral paradigm. The pattern of development for full‐term infants revealed that 7‐month‐olds look equally at labial‐coronal (i.e. /pat/) compared to coronal‐labial sequences (i.e. /tap/), but that 10‐month‐olds prefer the labial‐coronal sequences that are more frequent in the French lexicon. Preterm 10‐month‐olds (having 10 months of phonetic listening experience but 7 months of maturational age) behaved as full‐term 10‐month‐olds. These results establish that preterm developmental timing for consonant‐based phonotactic acquisition is based on listening age (experience with input). This questions the interpretation of previous results on prosodic acquisition in terms of maturational constraints, and raises the possibility that different constraints apply to the acquisition of different phonological subcomponents.     

The interface of cognitive and industrial,work and organizational psychology

This special issue brings together a collection of papers that variously integrate, extend and/or test new theory and research lying at the boundaries of the cognitive sciences and the field of industrial, work and organizational (IWO) psychology. Over the last two decades, the IWO psychology field in general has witnessed a dramatic upsurge in the development and testing of theories of work‐related behaviour and the design of interventions with a cognitive emphasis. In the related areas of engineering psychology and ergonomics, for example, researchers have devoted considerable attention to an analysis of the nature and significance of employees' mental models of complex operating systems in terms of their impact on system performance while in the area of selection and assessment, attribution theory and other work from the field of social cognition have increasingly informed the analysis of personnel selection interviews. Cognitive theory and research have also been applied in an attempt to better understand the underlying bases of appraisers' judgments in the appraisal of performance. In the area of training and development, conventional approaches to the analysis, design, and evaluation of interventions are being augmented, and in some cases openly challenged, by the application of cognitive constructs, theories, and principles. Much recent theory and research relating to the topics of employee relations and motivation, organizational development and change, teamwork, leadership, organizational culture and climate, negotiation, group decision‐making, stress, and personality and individual differences has also been decidedly cognitive in emphasis. This essay provides a selective overview of these developments, both in order to place in context the other contributions to this volume and in order to reflect more generally on the state of theory and research lying at the IWO‐cognitive psychology interface.     

A Single‐Stage Approach to Learning Phonological Categories: Insights From Inuktitut

To acquire one’s native phonological system, language‐specific phonological categories and relationships must be extracted from the input. The acquisition of the categories and relationships has each in its own right been the focus of intense research. However, it is remarkable that research on the acquisition of categories and the relations between them has proceeded, for the most part, independently of one another. We argue that this has led to the implicit view that phonological acquisition is a “two‐stage” process: Phonetic categories are first acquired and then subsequently mapped onto abstract phoneme categories. We present simulations that suggest two problems with this view: First, the learner might mistake the phoneme‐level categories for phonetic‐level categories and thus be unable to learn the relationships between phonetic‐level categories; on the other hand, the learner might construct inaccurate phonetic‐level representations that prevent it from finding regular relations among them. We suggest an alternative conception of the phonological acquisition problem that sidesteps this apparent inevitability and acquires phonemic categories in a single stage. Using acoustic data from Inuktitut, we show that this model reliably converges on a set of phoneme‐level categories and phonetic‐level relations among subcategories, without making use of a lexicon.     

New Perspectives on the Child‐ and Youth‐Serving Workforce in Low‐Resource Communities: Fostering Best Practices and Professional Development

The professionals and paraprofessionals who work daily with youth in low‐resource, marginalized communities are integral to youth wellbeing; yet, their professional development, and the factors that promote it, are not well understood. In this introduction to the special issue, Understanding and Strengthening the Child‐ and Youth‐Serving Workforce in Low‐Resource Communities, we focus on understudied practitioners operating in an array of sectors and settings, such as home visitors, mental health paraprofessionals, early childhood assistant teachers, teachers in low‐income countries, school resource officers, juvenile justice staff, and after‐school and community‐based program workers. We put forward a conceptual model detailing the interactive, layered set of proximal‐to‐distal ecological factors that influence the practice and professional development of these workers, and show how papers in the current issue address these layers in their examination of workforce development. We conclude with a summary of the contributions and lessons from this work – including the value of a whole‐person approach, the importance of sharing process across research stages, and the need to build on the foundation provided by community psychology and implementation science – toward the twin goals of understanding and building the skills and strengths of the workforce, and ultimately, enhancing youth development.     

A comparison of blocked and mixed‐trial methods for teaching auditory–visual discriminations

Behavior analysts typically teach conditional discriminations in a mixed‐trial format but may switch to a blocked‐trial format for learners displaying limited acquisition. No known research has shown that mixed‐trial methods are more effective or efficient than blocked‐trial methods for teaching discriminations, so it is not clear why this format has been adopted as the “first‐line” intervention. We compared blocked and mixed‐trial formats for teaching novel auditory–visual discriminations to three adults with intellectual and developmental disabilities (IDD). Results show blocked‐trial methods resulted in faster skill acquisition in all cases, suggesting this format may be a preferable starting point for instruction.     

In search of a science‐based application: A learning tool for reading acquisition

This is a story about the fate of a psychological application: from its conception to the optimistic vision surrounding its future. We hope that this application – an enjoyable learning game (www or mobile phone‐based, available free of charge to the end users) for children – can at best help millions of children in their reading acquisition in the future. Its basis was created by following intensively the development of children with (N = 107) and without (N = 92) genetic (familial) risk for dyslexia from birth to puberty in the Jyväskylä Longitudinal study of Dyslexia (JLD)‐project. We summarize some of the major findings of the JLD in order to facilitate understanding of the reasons and logic behind the development of the game. Originally intended as a research tool for reading acquisition, its potential for prevention of reading difficulties was quickly recognized.     

Self‐reported attitude scales: current practice in adequate assessment of reliability,validity, and dimensionality

The development of methods to create self‐reported attitude scales has lost momentum, in part because of increased research focused on implicit measures. This paper reviews 162 papers on methodological approaches applied to the validation and assessment of attitude scales. Assessment of methodological approaches applied indicates that neither reliability, validity, nor dimensionality assessments are consistently used according to standard operating procedures or in accordance with best practice. Within current practices in the field of attitude scale development, the full potential of self‐report scales is not met, in part because of such methodological issues. The improvement of existing practices and adoption of promising new developments in attitude scale construction and evaluation are discussed, together with recommendations for best practice in scale validation.     

Anxiety sensitivity and its impact on pain experiences and conditions: A state of the art

This paper serves as an introduction to the special issue of Cognitive Behaviour Therapy devoted to the topic of anxiety sensitivity (AS) and its impact on pain experiences and conditions. We provide a historical overview of relevant cognitive behavioural models of chronic pain, summarize recent models incorporating the AS construct, and introduce the papers in the special issue. These papers are organized into two sets – basic laboratory‐based investigations and relatively more applied studies. We attempt to highlight some of the most important findings from each of these investigations and studies, in turn. Then, we consider several important conclusions derived from the set of special issue papers and the implications of these for the practice of cognitive‐behavioural interventions with pain populations. Finally, we make several suggestions for directions for future investigations in this burgeoning area of cognitive behavioural research and practice.