A computational modeling approach was used to test one possible explanation for the limited capacity of the subitizing phenomenon. Most existing models of this phenomenon associate the subitizing span with an assumed structural limitation of the human information processing system. In contrast, we show how this limit might emerge as the combinatorics of the space of enumeration problems interacts with the human cognitive architecture in the context of an enumeration task. Subitizing‐like behavior was generated in two different models of enumeration, (...) one based on the ACT‐R cognitive architecture and the other based on the principles of parallel distributed processing (PDP). Our results provide good qualitative fits to results obtained in a variety of empirical studies. (shrink)

© 2015 Wong,Tassone,Rivera and Simon.Carriers of the fragile X premutation allele have an expanded CGG trinucleotide repeat size within the FMR1 gene and are at increased risk of developing fragile x-associated tremor/ataxia syndrome. Previous research has shown that male fXPCs with FXTAS exhibit cognitive decline, predominantly in executive functions such as inhibitory control and working memory. Recent evidence suggests fXPCs may also exhibit impairments in processing temporal information. The attentional blink task is often used to examine the dynamics of (...) attentional selection, but disagreements exist as to whether the AB is due to excessive or insufficient attentional control. In this study, we used a variant of the AB task and neuropsychological testing to explore the dynamics of attentional selection, relate AB performance to attentional control, and determine whether fXPCs exhibited temporal and/or attentional control impairments. Participants were adult male fXPCs, aged 18–48 years and asymptomatic for FXTAS and age-matched male controls. We found that fXPCs did not differ from controls in the AB task, indicating that the temporal dynamics of attentional selection were intact. However, they were impaired in the letter-number sequencing task, a test of executive working memory. In the combined fXPC and control group, letter-number sequencing performance correlated positively with AB magnitude. This finding supports models that posit the AB is due to excess attentional control. In our two-pronged analysis approach, in control participants we replicated a previously observed effect and demonstrated that it persists under more stringent theoretical constraints, and we enhance our understanding of fXPCs by demonstrating that at least some aspects of temporal processing may be spared. (shrink)

© 2014 Shapiro, Tassone, Choudhary and Simon.Chromosome 22q11.2 Deletion Syndrome is caused by the most common human microdeletion, and it is associated with cognitive impairments across many domains. While impairments in cognitive control have been described in children with 22q11.2DS, the nature and development of these impairments are not clear. Children with 22q11.2DS and typically developing children were tested on four well-validated tasks aimed at measuring specific foundational components of cognitive control: response inhibition, cognitive flexibility, and working memory. Molecular (...) assays were also conducted in order to examine genotype of catechol-O-methyltransferase, a gene located within the deleted region in 22q11.2DS and hypothesized to play a role in cognitive control. Mixed model regression analyses were used to examine group differences, as well as age-related effects on cognitive control component processes in a cross-sectional analysis. Regression models with COMT genotype were also conducted in order to examine potential effects of the different variants of the gene. Response inhibition, cognitive flexibility, and working memory were impaired in children with 22q11.2DS relative to TD children, even after accounting for global intellectual functioning. When compared with TD individuals, children with 22q11.2DS demonstrated atypical age-related patterns of response inhibition and cognitive flexibility. Both groups demonstrated typical age-related associations with working memory. The results of this cross-sectional analysis suggest a specific aberration in the development of systems mediating response inhibition in a sub-set of children with 22q11.2DS. It will be important to follow up with longitudinal analyses to directly examine these developmental trajectories, and correlate neurocognitive variables with clinical and adaptive outcome measures. (shrink)

Leader behavioral integrity (BI) is central to perceived credibility and thus to leaders’ effectiveness at fostering ethical and other climates. Our research broadens the theoretical foundation for BI research by integrating the cognitive–attributional role of trust in the formation and maintenance of leader BI perceptions. Guided by recent research on trust primacy and prior theories of fairness used to examine ethical behavior, we examine how perceptions of leader BI can be either diminished or maintained through trust velocity following a psychological (...) contract breach. Using a field and an experimental study, we explore the manner in which followers perceive leader’s actions when conflicting interests lead to unfulfilled promises. We found that trust velocity mediates the relationship between a psychological contract breach and leader BI (study 1), and that informational justice moderates this relationship (study 2), suggesting that leaders can attenuate the impact of broken promises on ascribed BI. Our findings offer a pathway for leaders operating in dynamic contexts to preserve BI and also help address concerns that have been raised about the behavioral integrity construct regarding its conceptual overlap with related constructs such as trust, psychological contracts, and informational justice. (shrink)

Preface Introduction Christopher J. Berry: Adam Smith: Outline of Life, Times, and Legacy Part One: Adam Smith: Heritage and Contemporaries 1: Nicholas Phillipson: Adam Smith: A Biographer's Reflections 2: Leonidas Montes: Newtonianism and Adam Smith 3: Dennis C. Rasmussen: Adam Smith and Rousseau: Enlightenment and counter-Enlightenment 4: Christopher J. Berry: Adam Smith and Early Modern Thought Part Two: Adam Smith on Language, Art and Culture 5: Catherine Labio: Adam Smith's Aesthetics 6: James Chandler: Adam Smith as Critic 7: Michael C. (...) Amrozowicz: Adam Smith: History and Poetics 8: C. Jan Swearingen: Adam Smith on Language and Rhetoric: The Ethics of Style, Character, and Propriety Part Three: Adam Smith and Moral Philosophy 9: Christel Fricke: Adam Smith: The Sympathetic Process and the Origin and Function of Conscience 10: Duncan Kelly: Adam Smith and the Limits of Sympathy 11: Ryan Patrick Hanley: Adam Smith and Virtue 12: Eugene Heath: Adam Smith and Self-Interest Part Four: Adam Smith and Economics 13: Tony Aspromourgos: Adam Smith on Labour and Capital 14: Nerio Naldi: Adam Smith on Value and Prices 15: Hugh Rockoff: Adam Smith on Money, Banking, and the Price Level 16: Maria Pia Paganelli: Commercial Relations: from Adam Smith to Field Experiments Part Five: Adam Smith on History and Politics 17: Spiros Tegos: Adam Smith: Theorist of Corruption 18: David M. Levy & Sandra J. Peart: Adam Smith and the State: Language and Reform 19: Fabrizio Simon: Adam Smith and the Law 20: Edwin van de Haar: Adam Smith on Empire and International Relations Part Six: Adam Smith on Social Relations 21: Richard Boyd: Adam Smith, Civility, and Civil Society 22: Gavin Kennedy: Adam Smith on Religion 23: Samuel Fleischacker: Adam Smith and Equality 24: Maureen Harkin: Adam Smith and Women Part Seven; Adam Smith: Legacy and Influence 25: Spencer J. Pack: Adam Smith and Marx 26: Craig Smith: Adam Smith and the New Right 27: Tom Campbell: Adam Smith: Methods, Morals and Markets 28: Amartya Sen: The Contemporary Relevance of Adam Smith. (shrink)

The impacts of early fishing on aquatic ecosystems were minimal, as primitive technologies were used to harvest fish primarily for food. As fishing technology grew more sophisticated and human populations dispersed and expanded, local economies transitioned from subsistence to barter and trade. Expanded trade networks and mercantilization led to surplus catches becoming tradable commodities. Today, global export fish commodities, including fresh, frozen, cured, and canned fish, are valued at over US$ 100 billion, but commoditization loses the ecological imperative, with overfishing (...) the result. To sustain global fisheries, human and ecosystem relationships with living fish need to be valued, as fish landed for both food and profit. Toward this end, we propose two decommoditization strategies: (a) valuing cultural property, the intergenerational relationships of people to places, in environmental policy and (b) instituting social subsidies that reward or enable local communities to cooperate in sustaining aquatic living resources, such as with marine protected areas. (shrink)

Since his rising interest in Christianity, Slavoj Žižek has discussed many other religions. This article examines his engagement with Buddhism, which he often uses as a stand in for “Oriental spirituality.” For Žižek, Buddhist traditions lack several key features that make Christianity the best prospect for religious political organization. By examining the reasons behind his rejection of Buddhism through his defence of the Subject and the state of Fallenness, the argument will be presented that Žižek's at times negative position on (...) Buddhism can be explained through his commitment to a Lacanian reading of the Cartesian subject. This allegiance means that for Žižek there can never be a harmonious state for the subject, and accepting this provides the subject with a “divine” freedom. This article will also discuss ways in which Žižek's particularism can be overcome without losing the “apocalyptic fervor” of Christian Communist politics. (shrink)

Cell adhesion complexes are critical for the physical coordination of cell–cell interactions and the morphogenesis of tissues and organs. Many adhesion receptors are anchored to the plasma membrane by a glycosylphosphatidylinositol (GPI) moiety and are thereby partitioned into membrane rafts. In this review, we focus on reciprocal interactions between rafts and adhesion molecules, leading to receptor clustering and raft expansion and stability. A model for a three‐stage adhesion complex assembly process is also proposed. First, GPI‐anchored adhesion molecules are recruited into (...) rafts, which in turn promote receptor cis‐oligomerization and thereby produce precursory complexes primed for avid trans‐interactions. Second, trans‐interactions of the receptors cross‐link and stabilize large amalgams of rafts at sites of adhesion complex assembly. Finally, the enlarged and stabilized rafts acquire enhanced abilities to recruit the cytoskeleton and induce signaling. This process exemplifies how the domain structure of the plasma membrane can impact the function of its receptors. BioEssays 24:996–1003, 2002. © 2002 Wiley‐Periodicals, Inc. (shrink)

Regulatory authorities have advised smokers who would not or could not quit smoking to switch to lower tar cigarettes. Smoking such cigarettes was seen as a means of reducing the harm caused by smoking, but not as offering a ‘safe’ smoking option. Correspondingly manufacturers have been required to place tar and nicotine information on packet labels and/or advertisements. This paper explores the possibility that the conventional format for conveying tar and nicotine information could be responsible for the belief, held by (...) a significant proportion of smokers, that some brands of lower tar cigarettes are absolutely ‘safe’. To deal with this situation it is suggested that changes should be made to health warnings, and tar and nicotine communications. Proposed changes to the latter are evaluated in terms of their ethical and public health implications. The authors conclude that brand specific warnings and a classification of cigarettes as either ‘Very Dangerous’ or ‘Dangerous’, is best suited to reconciling consumer needs for information with the public health objectives of reducing the harm caused by smoking. (shrink)

Subcortical substrates for behavioural integration include the fore/midbrain nuclei of the basal ganglia and the hindbrain medial reticular formation. The midbrain superior colliculus requires basal ganglia disinhibition in order to generate orienting movements. The colliculus should therefore be seen as one of many competitors vying for control of the body's effector systems with the basal ganglia acting as the key arbiter. (Published Online May 1 2007).

An action-oriented perspective changes the role of an individual from a passive observer to an actively engaged agent interacting in a closed loop with the world as well as with others. Cognition exists to serve action within a landscape that contains both. This chapter surveys this landscape and addresses the status of the pragmatic turn. Its potential influence on science and the study of cognition are considered (including perception, social cognition, social interaction, sensorimotor entrainment, and language acquisition) and its impact (...) on how neuroscience is studied is also investigated (with the notion that brains do not passively build models, but instead support the guidance of action). A review of its implications in robotics and engineering includes a discussion of the application of enactive control principles to couple action and perception in robotics as well as the conceptualization of system design in a more holistic, less modular manner. Practical applications that can impact the human condition are reviewed (e.g., educational applications, treatment possibilities for developmental and psychopathological disorders, the development of neural prostheses). All of this foreshadows the potential societal implications of the pragmatic turn. The chapter concludes that an action-oriented approach emphasizes a continuum of interaction between technical aspects of cognitive systems and robotics, biology, psychology, the social sciences, and the humanities, where the individual is part of a grounded cultural system. (shrink)

As the perfect companion to introduction to ethics courses, Dell'Olio and Simon's reader includes the most influential ethical theories without overwhelming the beginning student. It contains a variety of readings encompassing contemporary and classic philosophers, male and female perspectives of both western and non-western ethical traditions, and readings in both theoretical and applied ethics as well as a section on 'living the good life.' Useful introduction with thought provoking study questions and suggestions for further readings accompany each chapter which (...) make it easier for students to understand and appreciate their reading. (shrink)

We suggest that the sensorimotor “theory” of vision is really an unstructured collection of separate ideas, and that much of the evidence cited in its favor at best supports only a subset of these ideas. As an example, we note that work on change blindness does not “vindicate” (or even speak to) much of the sensorimotor framework. Moreover, the ideas themselves are not always internally consistent. Finally, the proposed framework draws on ideas initially espoused by James Gibson, but does little (...) to differentiate itself from those earlier views. For even part of this framework to become testable, it must specify which sources of evidence can support or contradict each of the component hypotheses. (shrink)

By focusing on the caloric composition of hunted prey species, optimal foraging research has shown that hunters usually make economically rational prey choice decisions. However, research by meat scientists suggests that the gustatory appeal of wildlife meats may vary dramatically. In this study, behavioral research indicates that Mayangna and Miskito hunters in Nicaragua inconsistently pursue multiple prey types in the optimal diet set. We use cognitive methods, including unconstrained pile sorts and cultural consensus analysis, to investigate the hypothesis that these (...) partial preferences are influenced by considerations of meat flavor. Native informants exhibit high agreement on the relative appeal of different meats. Given the absence of other noteworthy differences between spider monkeys (Ateles geoffroyi) and howler monkeys (Alouatta palliata), the unappealing flavor of howler monkeys seems to be a factor in the partial preference for this species. (shrink)

Institutional review boards are almost universally considered to be overworked and understaffed. They also require substantial commitments of time and resources from their members. Although some surveys report average IRB memberships of 15 people or more, federal regulations require only five. We present data on IRB meetings at eight of the top 25 academic medical centers in the United States funded by the National Institutes of Health. These data indicate substantial contributions from primary reviewers and chairs during protocol discussions but (...) little from other members, which implies that it may be possible for smaller IRBs to accomplish the same tasks with no reduction in the quality of review. (shrink)

The article investigates the sociocultural implications of the changing modern workplace and of pharmacological cognitive enhancement as a potential adaptive tool from the viewpoint of social niche construction. We will attempt to elucidate some of the sociocultural and technological trends that drive and influence the characteristics of this specific niche, and especially to identify the kind of capabilities and adaptations that are being promoted, and to ascertain the capabilities and potentialities that might become diminished as a result. In this context, (...) we will examine what PCE is, and how and why it might be desirable as a tool for adaptation within the workplace. As human beings are, or at least should be allowed to be, more than merely productive, able-bodied and able-minded workers, we will further examine how adaptation to the workplace niche could result in problems in other domains of modern societal life that require the same or other cognitive capabilities. In this context we will also focus on the concept of responsibility and how it pertains to PCE and the modern workplace niche. This will shed some light on the kind of trends related to workplace niche construction, PCE and capability promotion that we can expect in the future, and on the contexts in which this might be either beneficial or detrimental to the individual as a well-rounded human being, and to other members of society. (shrink)

Recent Work on Intrinsic Value brings together for the first time many of the most important and influential writings on the topic of intrinsic value to have appeared in the last half-century. During this period, inquiry into the nature of intrinsic value has intensified to such an extent that at the moment it is one of the hottest topics in the field of theoretical ethics. The contributions to this volume have been selected in such a way that all of the (...) fundamental questions concerning the nature of intrinsic value are treated in depth and from a variety of viewpoints. These questions include how to understand the concept of intrinsic value, what sorts of things can have intrinsic value, and how to compute intrinsic value. The editors have added an introduction that ties these questions together and places the contributions in context, and they have also provided an extensive bibliography. The result is a comprehensive, balanced, and detailed picture of current thinking about intrinsic value, one that provides an indispensable backdrop against which future writings on the topic may be assessed. (shrink)

Protein–protein interactions are thought to be mediated by domains, which are autonomous folding units of proteins. Recently, a second type of interaction has been suggested, mediated by short segments termed linear motifs, which are related to recognition elements of intrinsically disordered regions. Here, we propose a third kind of protein–protein recognition mechanism, mediated by disordered regions longer than 20–30 residues. Bioinformatics predictions and well‐characterized examples, such as the kinase‐inhibitory domain of Cdk inhibitors and the Wiskott–Aldrich syndrome protein (WASP)‐homology domain 2 (...) of actin‐binding proteins, show that these disordered regions conform to the definition of domains rather than motifs, i.e., they represent functional, evolutionary, and structural units. Their functions are distinct from those of short motifs and ordered domains, and establish a third kind of interaction principle. With these points, we argue that these long disordered regions should be recognized as a distinct class of biologically functional protein domains. (shrink)

Protein–protein interactions are thought to be mediated by domains, which are autonomous folding units of proteins. Recently, a second type of interaction has been suggested, mediated by short segments termed linear motifs, which are related to recognition elements of intrinsically disordered regions. Here, we propose a third kind of protein–protein recognition mechanism, mediated by disordered regions longer than 20–30 residues. Bioinformatics predictions and well‐characterized examples, such as the kinase‐inhibitory domain of Cdk inhibitors and the Wiskott–Aldrich syndrome protein (WASP)‐homology domain 2 (...) of actin‐binding proteins, show that these disordered regions conform to the definition of domains rather than motifs, i.e., they represent functional, evolutionary, and structural units. Their functions are distinct from those of short motifs and ordered domains, and establish a third kind of interaction principle. With these points, we argue that these long disordered regions should be recognized as a distinct class of biologically functional protein domains. (shrink)

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and (...) On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action. (shrink)

Substantial research examines the follower consequences of leader alignment of words and deeds, but no research has quantitatively reviewed these effects. This study examines extant research on behavioral integrity and contrasts it with two other constructs that focus on alignment: moral integrity and psychological contract breaches. We compare effect sizes between the three constructs, and find that BI has stronger effects on trust, in-role task performance and citizenship behavior than moral integrity and stronger effects on commitment and OCB than psychological (...) contract breach. These stronger attitudinal consequences run counter to our initial expectations, but they provide evidence of important conceptual distinctions and mechanisms that we articulate. BI theory suggests that BI’s greater performance impact is due to the notion that BI affects communication clarity in addition to attitudes. Results of meta-analytic structural equation modeling are consistent with this proposed dual path of BI’s impact. We highlight avenues for future research on BI and discuss how our findings inform the broader research on leader alignment. (shrink)

Certain organoid subtypes are particularly sensitive. We explore whether moral intuitions about the heartbeat warrant unique moral consideration for newly advanced contracting cardiac organoids. Despite the heartbeat’s moral significance in organ procurement and abortion discussions, we argue that this significance should not translate into moral implications for cardiac organoids.

This article argues that hope is of value in clinical ethics and that it can be important for clinicians to be sensitive to both the risks of false hope and the importance of retaining hope. However, this sensitivity requires an understanding of the complexity of hope and how it bears on different aspects of a well-functioning doctor-patient relationship. We discuss hopefulness and distinguish it from three different kinds of hope, or ‘hopes for’, and then relate these distinctions back to differing (...) accounts of autonomy. This analysis matters because it shows how an overly narrow view of the ethical obligations of a clinician to their patient, and autonomy, might lead to scenarios where patients regret the choices they make. (shrink)

This article examines a series of Schelling-like models of residential segregation, in which agents prefer to be in the minority. We demonstrate that as long as agents care about the characteristics of their wider community, they tend to end up in a segregated state. We then investigate the process that causes this and conclude that the result hinges on the similarity of informational states among agents of the same type. This is quite different from Schelling-like behavior and suggests that segregation (...) is an instance of macrobehavior that can arise from a wide variety of micromotives. (shrink)

We argue that two main accounts of hypocrisy— the deception-based and the moral-non-seriousness-based account—fail to capture a specific kind of hypocrite who is morally serious and sincere "all the way down." The kind of hypocrisy exemplified by this hypocrite is irreducible to deception, self-deception or a lack of moral seriousness. We call this elusive and peculiar kind of hypocrisy, pure hypocrisy. We articulate the characteristics of pure hypocrisy and describe the moral psychology of two kinds of pure hypocrites.