Cowan assumes a unitary capacity-limited attentional focus. We argue that two main problems need to be solved before this assumption can complement theoretical knowledge about human cognition. First, it needs to be clarified what exactly the nature of the elements (chunks) within the attentional focus is. Second, an elaborated process model needs to be developed and testable assumptions about the proposed capacity limitation need to be formulated.

Maintaining and coordinating multiple task-sets is difficult and leads to costs, however task-switching training can reduce these deficits. A recent study in young adults demonstrated that this training effect occurs at an amodal processing level. Old age is associated with reduced cognitive plasticity and further increases the performance costs when mixing multiple tasks. Thus, cognitive aging might be a limiting factor for inducing cross-modal training effects in a task-switching environment. We trained participants, aged 62–83 years, with an auditory task-switching paradigm (...) over four sessions, to investigate whether training-related reductions in task-switching costs would also manifest in an untrained visual modality version of the task. Two control groups trained with single tasks or not trained allowed us to identify improvements specific to task-switching training. To make statistical evaluations of any age differences in training and cross-modal transfer, the data from the Kattner cohort were incorporated into the present analysis. Despite the tendency for older adults to respond more cautiously, task-switching training specifically led to a mixing cost reduction in both trained and untrained modalities, the magnitude of which was statistically similar regardless of age. In line with a growing body of research, we failed to observe any far transfer effects in measures of inhibition, working memory or fluid intelligence. Overall, we conclude that any apparent cognitive limitations associated with aging do not prevent cognitive control processes which support set-shifting from improving at an amodal level. (shrink)

To evoke the impression of movement in the “immobile” image is one of the central motivations of the visual art, and the activating effect of images has been discussed in art psychology already some hundred years ago. However, this topic has up to now been largely neglected by the researchers in cognitive psychology and neuroscience. This study investigates – from an interdisciplinary perspective – the formation of lateralised instances of motion when an observer perceives movement in an image. A first (...) step was to identify images that evoke a perception of movement in a certain direction and to give this a rating. Reaction times leading to the engagement of a joystick following the presentation of images are used to evidence the postulated movement occasioned by the perception of movement in an image. Where the required direction of joystick moves matched the expected perception of movement direction in the image, considerably shorter reaction times were recorded. The experiment was able to prove a “movement-image compatibility effect” in observers of images. Based on this, the paper revisits and brings up to date the theses on motor sensory response to images which were developed in art psychology at the beginning of the 20th century. It furthermore contributes an embodiment theory interpretation to the prevalent representational explanation of compatibility effects. (shrink)

Dieser Band, aus Jenenser Lehrveranstaltungen erwachsen, richtet sich vornehmlich an Studenten, denen an Hand der überlieferten Fragmente des Horos des Konzils von 754 ein Einstieg in die Gedankenwelt und die Argumentation der bilderablehnenden Theologen in der ersten Phase des Ikonoklasmus ermöglicht werden soll. Richtig ist, daß dem Horos dabei eine besondere Rolle zukommt, da er weitgehend rekonstruierbar ist. Aus welchem Grunde aber die Peuseis Konstantins V., die andere wichtige Quelle für die Eruierung der ikonoklöastischen Beweisführung in der ersten Periode des (...) Streits, von der Behandlung ausgeschlossen bleiben, wird nicht erklärt. Auch fehlt eine stichhaltige Begründung für die im Vorwort genannte Einschränkung: „Eine Erfassung und Auswertung der gesamten zugehörigen Sekundärliteratur konnten und wollten wir nicht leisten“ (S. V). (shrink)

Platon ist nach Homer der antike Autor mit der reichhaltigsten Rezeption vom Altertum über das Mittelalter bis in die Neuzeit. Gleichwohl und gerade aus diesem Grund ist diese bisher allenfalls bruchstückhaft aufgearbeitet worden. Die Autoren versuchen, diesem alten Ziel geisteswissenschaftlicher Forschung auf neuen Wegen näherzukommen, indem sie eine informationswissenschaftliche Perspektive auf Platon und seine Rezeption anwenden. Dazu sind innovative Methoden der Paraphrasensuche entwickelt worden, um diese auch als Methode altertumswissenschaftlich und kulturwissenschaftlich interessierter Forschung zu etablieren.

This article gives a brief introduction to the MacArthur Competence Assessment Tool-Treatment (MacCAT-T) and critically examines its theoretical presuppositions. On the basis of empirical, methodological and ethical critique it is emphasised that the cognitive bias that underlies the MacCAT-T assessment needs to be modified. On the one hand it has to be admitted that the operationalisation of competence in terms of value-free categories, e.g. rational decision abilities, guarantees objectivity to a great extent; but on the other hand it bears severe (...) problems. Firstly, the cognitive focus is in itself a normative convention in the process of anthropological value-attribution. Secondly, it misses the complexity of the decision process in real life. It is therefore suggested that values, emotions and other biographic and context specific aspects should be considered when interpreting the cognitive standards according to the MacArthur model. To fill the gap between cognitive and non-cognitive approaches the phenomenological theory of personal constructs is briefly introduced. In conclusion some main demands for further research to develop a multi-step model of competence assessment are outlined. (shrink)

This paper aims to give an insight into developments that contributed to the significance of the work of Jakob von Uexküll and stresses the importance of his occupation in Hamburg. A biographical survey pays tribute to the implication of the historical pretext and context. A scientific survey describes findings and ideas of Uexküll that proved important for the development of biology and the cognitive sciences. In addition, this paper sets out to reject the common notion that Uexküll’s concepts were ideas (...) of a purely theoretical and philosophical character. It confirms that in fact the central aims of his work were to sustain the empirical method in biology and to give biology a sound epistemological basis. Some examples show how historical and theoretical developments converged at Uexküll’s Institut für Umweltforschung in Hamburg and ignited a productive research activity. (shrink)

Wie können Freiheit und Widerstand innerhalb von Foucaults Theorie der Macht und Subjektivierung konzipiert werden? Karsten Schubert liefert die erste systematische Rekonstruktion der sozialphilosophischen Debatte um Freiheit bei Foucault und eine neue Lösung für das Freiheitsproblem: Freiheit als die Fähigkeit zur reflexiven Kritik der eigenen Subjektivierung – kurz: Freiheit als Kritik – ist das Resultat von freiheitlicher Subjektivierung in politischen Institutionen. Der Band zeigt so die Konsequenzen von Foucaults Freiheitsdenken für die Demokratietheorie und die allgemeine sozialphilosophische Freiheitsdiskussion auf.

Employees perception of the existence of a covenantal relationship between themselves and their employer indicates that they believe there is a mutual commitment to shared values and the welfare of the other party in the relationship. Research suggests that these types of employment relationships have positive benefits for both employees and employers. There has been little research, however, on the factors that determine whether such relationships will develop and thrive.In this paper, we suggest that the organizations ethical work climate may (...) be an important factor affecting employees perceptions about the nature of the relational contract between themselves and their employer. Specifically, we argue that work climates emphasizing benevolence and principle will be associated with covenantal relationships. Conversely, we believe that work climates emphasizing egoism will make it less likely that covenantal relationships will develop between an employer and employee. (shrink)

Power is often taken to be a central concept in social and political thought that can contribute to the explanation of many different social phenomena. This article argues that in order to play this role, a general theory of power is required to identify a stable causal capacity, one that does not depend on idiosyncratic social conditions and can thus exert its characteristic influence in a wide range of cases. It considers three promising strategies for such a theory, which ground (...) power in (1) the ability to use force, (2) access to resources, or (3) collective acceptance. It shows that these strategies fail to identify a stable causal capacity. The lack of an adequate general theory of power suggests that the concept lacks the necessary unity to play the broad explanatory role it is often accorded. (shrink)

Goldstein and Gigerenzer (2002) [Models of ecological rationality: The recognition heuristic. Psychological Review, 109 (1), 75–90] found evidence for the use of the recognition heuristic. For example, if an individual recognizes only one of two cities, they tend to infer that the recognized city has a larger population. A prediction that follows is that of the less‐is‐more effect: Recognizing fewer cities leads, under certain conditions, to more accurate inferences than recognizing more cities. We extend the recognition heuristic to group decision‐making (...) by developing majority and lexicographic models of how recognition information is used by groups. We formally show when the less‐is‐more effect is predicted in groups and we present a study where three‐member groups performed the population comparison task. Several aspects of our data indicate that members who can use the recognition heuristic are, not in all but in most cases, more influential in the group decision process than members who cannot use the heuristic. We also observed the less‐is‐more effect and found that models assuming that members who can use the recognition heuristic are more influential better predict when the effect occurs. (shrink)

Preliminary Material -- Einleitung -- Zerlegung in Elemente, Denken in polaren Gegensätzen und das Ideal umfassender Weisheit bei Demokrit -- Die Polarisierung von Weisheit in göttlichen Dingen und Weisheit in menschlichen Dingen bei den Sokratikern -- Generalisierung, Elementarisierung, Paradigmatisierung und die Unterscheidung zwischen Theorie und Praxis bei Platon -- Die Pros-hen-Aussage und die Unterscheidung zwischen Theorie und Praxis bei Aristoteles -- Ausblick -- Literaturverzeichnis -- Stellenregister -- Namensregister -- Sachregister.

Despite a strong sensitization to the corruption problem and a large body of interdisciplinary research, scientists have only rarely investigated which motivational, volitional, emotional, and cognitive components make decision makers in companies act corruptly. Thus, we examined how their interrelation leads to corruption by proposing an action model. We tested the model using a business simulation game with students as participants. Results of the PLS structural equation modeling showed that both an attitude and subjective norm favoring corruption led to a (...) desire to act corruptly. Given high perceived behavioral control, this desire was transformed into an intention that finally resulted in corrupt action. Components related to general private and professional goals did not allow for any prediction. Based on these results, we discuss preventative measures and methods for combating intra- and inter-organizational corruption. (shrink)

In recent years, a variety of philosophers have argued that the fundamental bearers of representational properties like truth are concrete particulars produced by cognitive agents—representational vehicles (“RVs”), as I will call them. This view apparently conflicts with other judgments that are part of our common sense understanding of truth. For instance, it is plausible that there are truths about the Milky Way that have and never will never be articulated by anyone. Whatever these truths are, it looks like they cannot (...) be RVs, because an RV is articulated just in case it exists. In this paper, I argue that it is consistent to hold that the fundamental truth-bearers are representational vehicles, while also acknowledging the existence of unarticulated truths. I argue that truth is a property that derivatively holds of kinds of RVs, that these provide the basis for our judgments that there are unarticulated truths, and I defend the view against putative counter-examples. (shrink)

What kind of thing, as it were, is power and how does it fit into our understanding of the social world? I approach this question by exploring the pragmatic character of power ascriptions, arguing that they involve fictional expectations directed at an open future. When we take an agent to be powerful, we act as if that agent had a robust capacity to make a difference to the actions of others. While this pretense can never fully live up to a (...) social reality whose future is open, acting on such expectations helps constitute social order. Fictional expectations are thus built into the material practices that constitute power. This account, I argue, helps us make sense of some of the deep disagreements about the nature of power. I develop the account by drawing on Thomas Hobbes’s myth of an original institution of sovereign power before expanding it to other forms of power. (shrink)

Epistemic trust is crucial for science. This article aims to identify the kinds of assumptions that are involved in epistemic trust as it is required for the successful operation of science as a collective epistemic enterprise. The relevant kind of reliance should involve working from the assumption that the epistemic endeavors of others are appropriately geared towards the truth, but the exact content of this assumption is more difficult to analyze than it might appear. The root of the problem is (...) that methodological decisions in science typically involve a complex trade-off between the reliability of positive results, the reliability of negative results, and the investigation's power. Which balance between these is the ‘correct’ one can only be determined in light of an evaluation of the consequences of all the different possible outcomes of the inquiry. What it means for the investigation to be ‘appropriately geared towards the truth’ thus depends on certain value judgments. I conclude that in the optimal case, trusting someone in her capacity as an information provider also involves a reliance on her having the right attitude towards the possible consequences of her epistemic work. 1 Introduction2 Epistemic Reliance within the Sciences3 Methodological Conventionalism4 Trust in Science5 Conclusions. (shrink)

This paper aims to give an insight into developments that contributed to the significance of the work of Jakob von Uexküll and stresses the importance of his occupation in Hamburg. A biographical survey pays tribute to the implication of the historical pretext and context. A scientific survey describes findings and ideas of Uexküll that proved important for the development of biology and the cognitive sciences. In addition, this paper sets out to reject the common notion that Uexküll’s concepts were ideas (...) of a purely theoretical and philosophical character. It confirms that in fact the central aims of his work were to sustain the empirical method in biology and to give biology a sound epistemological basis. Some examples show how historical and theoretical developments converged at Uexküll’s Institut für Umweltforschung in Hamburg and ignited a productive research activity. (shrink)

When interests and preferences of researchers or their sponsors cause bias in experimental design, data interpretation or dissemination of research results, we normally think of it as an epistemic shortcoming. But as a result of the debate on science and values, the idea that all extra-scientific influences on research could be singled out and separated from pure science is now widely believed to be an illusion. I argue that nonetheless, there are cases in which research is rightfully regarded as epistemologically (...) deficient due to the influence of preferences on its outcomes. I present examples from biomedical research and offer an analysis in terms of social epistemology. (shrink)

This paper aims to give an insight into developments that contributed to the significance of the work of Jakob von Uexküll and stresses the importance of his occupation in Hamburg. A biographical survey pays tribute to the implication of the historical pretext and context. A scientific survey describes findings and ideas of Uexküll that proved important for the development of biology and the cognitive sciences. In addition, this paper sets out to reject the common notion that Uexküll’s concepts were ideas (...) of a purely theoretical and philosophical character. It confirms that in fact the central aims of his work were to sustain the empirical method in biology and to give biology a sound epistemological basis. Some examples show how historical and theoretical developments converged at Uexküll’s Institut für Umweltforschung in Hamburg and ignited a productive research activity. (shrink)

The notion of ecological rationality implies that the accuracy of a decision strategy depends on features of the information environment in which it is tested. We demonstrate that the performance of a group may be strongly affected by the decision strategies used by its individual members and specify how this effect is moderated by environmental features. Specifically, in a set of simulation studies, we systematically compared four decision strategies used by the individual group members: two linear, compensatory decision strategies and (...) two simple, noncompensatory heuristics. Individual decisions were aggregated by using a majority rule. To assess the ecological rationality of the strategies, we varied (a) the distribution of cue validities, (b) the quantity, and (c) the quality of shared information. Group performance strongly depended on the distribution of cue validities. When validities were linearly distributed, groups using a compensatory strategy achieved the highest accuracy. Conversely, when cue validities followed a J-shaped distribution, groups using a simple lexicographic heuristic performed best. While these effects were robust across different quantities of shared information, the quality of shared information exerted stronger effects on group performance. Consequences for prescriptive theories on group decision making are discussed. (shrink)

This paper aims to give an insight into developments that contributed to the significance of the work of Jakob von Uexküll and stresses the importance of his occupation in Hamburg. A biographical survey pays tribute to the implication of the historical pretext and context. A scientific survey describes findings and ideas of Uexküll that proved important for the development of biology and the cognitive sciences. In addition, this paper sets out to reject the common notion that Uexküll’s concepts were ideas (...) of a purely theoretical and philosophical character. It confirms that in fact the central aims of his work were to sustain the empirical method in biology and to give biology a sound epistemological basis. Some examples show how historical and theoretical developments converged at Uexküll’s Institut für Umweltforschung in Hamburg and ignited a productive research activity. (shrink)

This chapter provides an analysis of the long process of introducing an electronic identity for online authentication in Germany. This process is described as a multi-facet innovation, involving actors from different policy fields shifting over time. The eID process started in the late ‘90s in the context of eGovernment and eCommerce with the legislation on e-signatures, which were supposed to allow for online authentication of citizens. When after 5 years it was recognized that this was not the case, a new (...) digital ID card, which had meanwhile been announced, was chosen as token for the eID. This process was dominated by the concerns for visual inspection and border control, including the storage of digital fingerprints. Under the leadership of the Ministry of the Interior (BMI) and technical guidance of the Federal Agency for Information Security (BSI), technical specifications have to a large extent been adopted from the electronic passport, which had been smoothly introduced 2 years before. However, in the legislative process some concern regarding digital fingerprints on the eID card was raised and led to an opt-in solution. In 2009, a bill on the new ID card was passed which regulates the eID function for online authentication as well. This is characterized as a radical innovation by introducing a double-sided, mutual authentication of the citizen and the service provider and implementing the principle of proportionality regarding the access of service providers to data on the chip. At the time of writing, field tests are conducted. Roll-out of the new eID card is to start in November 2010. Therefore no figures about adoption can be provided here. (shrink)