Willensfreiheit wird bestritten, weil sich der Begriff nicht logisch konsistent definieren lässt und weil inzwischen auch neurobiologische Anhaltspunkte gegen ihre Existenz sprechen. Anders als in der biblisch-reformatorischen Tradition gehört die Willensfreiheit aber zum Kern des aufgeklärten Menschenbildes. Und auch in der Theologie scheint die Bestreitung der Willensfreiheit unweigerlich auf die Lehre von der doppelten Prädestination hinauszulaufen, so dass seit Pietismus und Aufklärung auch die evangelische Theologie ihrem Ursprung untreu wurde. In dem Buch werden die Perspektiven der Philosophie, Neurobiologie und Theologie (...) zum Thema Willensfreiheit zusammengeführt. Die Argumente und Befunde gegen Willensfreiheit sind weit stärker als die zu ihren Gunsten. Deswegen existieren bislang nur Positionen, die den Determinismus akzeptieren, oder solche, die aus der Negation des Determinismus doch noch eine Möglichkeit für Willensfreiheit im menschlichen Gehirn zu finden hoffen. Die Studie geht einen völlig neuen Weg, indem sie den Determinismus der Aussenwelt bestreitet, und dies im Anschluss an die erkenntnistheoretischen Debatten über das Wesen des Quantenindeterminismus. Dabei wird aber gerade kein freier Wille postuliert, sondern ein Konzept aktiver Lebensführung entwickelt, in dem Bildung zur Verwirklichung von vorgenommenen Zielen eine besondere Rolle spielt."-- Back cover. (shrink)

Ethics committees in Catholic health care are responsible for con­sultation, education, and policy development and review. Historically, ethics committees were reactive and had no articulated goals. This article argues that the essential goals of Catholic ethics committees are (1) to promote the human dignity of patients and staff; (2) to promote the common good; (3) to promote institutional identity, integrity, and ethical climate; and (4) to improve quality of care. These goals are most effectively met when ethics committees are proactive (...) and integrated in the institution, embrace systems thinking, and utilize professional ethicists locally or regionally. (shrink)

In 1976 an interdisciplinary study on risks and risk evaluations was inaugurated in Sweden and was sponsored by the Committee for Future-oriented Research. One of the basic assumptions of the Swedish risk project was that modern society has created “new, increasingly complicated and large-scale technical systems.” It also assumed that “large systems are economically efficient, but vulnerable and therefore create risks.” A third assumption was that “the ever rising standard of living is purchased at the cost of certain additional risks.” (...) The perspective of the project was thus markedly historically oriented. (shrink)

In this collection, philosophers, social psychologists, and social scientists approach contemporary social reality from the viewpoint of solidarity. They examine the nature of solidarity and explore its normative and explanatory potential.

Following the pioneering studies of the receptive field (RF), the concept gained further significance for visual perception by the discovery of input effects from beyond the classical RF. These studies demonstrated that neuronal responses could be modulated by stimuli outside their RFs, consistent with the perception of induced brightness, color, orientation, and motion. Lesion scotomata are similarly modulated perceptually from the surround by RFs that have migrated from the interior to the outer edge of the scotoma and in this way (...) provide filling-in of the void. Large RFs are advantageous to this task. In higher visual areas, such as the middle temporal and inferotemporal lobe, RFs increase in size and lose most of their retinotopic organization while encoding increasingly complex features. Whereas lowerlevel RFs mediate perceptual filling-in, contour integration, and figure–ground segregation, RFs at higher levels serve the perception of grouping by common fate, biological motion, and other biologically relevant stimuli, such as faces. Studies in alert monkeys while freely viewing natural scenes showed that classical and nonclassical RFs cooperate in forming representations of the visual world. Today, our understanding of the mechanisms underlying the RF is undergoing a quantum leap. What had started out as a hierarchical feedforward concept for simple stimuli, such as spots, lines, and bars, now refers to mechanisms involving ascending, descending, and lateral signal flow. By extension of the bottom-up paradigm, RFs are nowadays understood as adaptive processors, enabling the predictive coding of complex scenes. Top-down effects guiding attention and tuned to task-relevant information complement the bottom-up analysis. (shrink)

On childhood, childhood culture and child perspective in a cross-cultural frame of reference.

Le mouvement skinhead se compose de deux entités : les skinheads racistes-nationalistes et les skinheads antiracistes. S’inspirant des théories psychosociologiques relatives aux représentations sociales et aux minorités actives proposées par Serge Moscovici , il décrit les styles de comportement précis de chaque groupe skin, leurs divergences et leurs ressemblances, et analyse la façon dont la société, aidée par les media, ne retient qu’une seule représentation sociale, celle des skinheads nationalistes. Malgré l’univocité de la représentation, ce qui ressort de 19 entretiens (...) avec les skinheads, c’est l’idée de pluralité identitaire combinée à un ancrage urbain très important.The skinhead movement is divided into two groups : the racist-nationalist skinheads and the antiracist skinheads. Taking into account the social-psychological theories of social representations and active minorities, proposed by Serge Moscovici , it describes the styles of behavior of each skin group, their divergences and resemblances and analyses how society, with the help of the media, has built only one social representation of the nationalist skinheads. In spite of this univocal representation, what is underlined through the nineteen interviews with skinheads is a form of plural identity linked to a strong urban anchoring. (shrink)

Organizational changes are common in elder care today. Such changes affect caregivers, who are essential to providing good quality care. The aim of the present study was to illuminate caregivers’ experiences of working in elder care while under threat of organizational change and termination notice. Qualitative content analysis was used to examine interview data from 11 caregivers. Interviews were conducted at three occasions during a two‐year period. The findings show a transition in their experiences from ‘having a professional identity and (...) self‐confidence’, to ‘being a professional in a threatening situation caused by someone else’ and to ‘struggling to adapt to a changed working environment as a person and a professional’. The caregivers experienced a loss of pride and satisfaction. Previous literature indicates that this may have consequences for the quality of care and that employees may be at risk of negative health effects. However, the caregivers continued to struggle, doing their best to complete their duties. The study has implications for high‐level decision‐makers, managers and caregivers in similar work–life situations in that it deals with factors that facilitate or impede similar transitions. (shrink)

In this discussion, Steve Fuller’s book Dissent over Descent is criticized mainly because he draws conclusions from wishful thinking and uses ancient and medieval scientists as well as theologians in his efforts to invalidate the theory of evolution. He is also criticized for drawing universal conclusions from a Eurocentric version of history. If science and technology studies is to regain its reputation, its representatives have to use relevant statements and argue more rationally.

Background To characterize patients dying in a community hospital with or without attempting cardiopulmonary resuscitation and to describe patient involvement in, documentation of, and compliance with decisions on resuscitation. Methods All patients who died in Kalmar County Hospital during January 1, 2016 until December 31, 2016 were included. All information from the patients’ electronic chart was analysed. Results Of 660 patients female), 30 were pronounced dead in the emergency department after out-of-hospital CPR. Of the remaining 630 patients a DNAR order (...) had been documented in 558 patients. Seventy had no DNAR order and 2 an explicit order to do CPR. In 43 of these 70 patients CPR was unsuccessfully attempted while the remaining 27 patients died without attempting CPR. In 2 of 558 patients CPR was attempted despite a DNAR order in place. In 412 patients the DNAR order had not been discussed with neither patient nor family/friends. Moreover, in 75 cases neither patient nor family/friends were even informed about the decision on code status. Conclusions In general, a large percentage of patients in our study had a DNAR order in place. However, 27 patients died without CPR attempt or DNAR order. DNAR orders had not been discussed with the patient/surrogate in almost three fourths of the patients. Further work has to be done to elucidate the barriers to discussions of CPR decisions with the patient. (shrink)

Analysis of grip force signals tailored to hand and finger movement evolution and changes in grip force control during task execution provide unprecedented functional insight into somatosensory cognition. Somatosensory cognition is a basis of our ability to manipulate, move, and transform objects of the physical world around us, to recognize them on the basis of touch alone, and to grasp them with the right amount of force for lifting and manipulating them. Recent technology has permitted the wireless monitoring of grip (...) force signals recorded from biosensors in the palm of the human hand to track and trace human grip forces deployed in cognitive tasks executed under conditions of variable sensory (visual, auditory) input. Non-invasive multi-finger grip force sensor technology can be exploited to explore functional interactions between somatosensory brain mechanisms and motor control, in particular during learning a cognitive task where the planning and strategic execution of hand movements is essential. Sensorial and cognitive processes underlying manual skills and/or hand-specific (dominant versus non-dominant hand) behaviors can be studied in a variety of contexts by probing selected measurement loci in the fingers and palm of the human hand. Thousands of sensor data recorded from multiple spatial locations can be approached statistically to breathe functional sense into the forces measured under specific task constraints. Grip force patterns in individual performance profiling may reveal the evolution of grip force control as a direct result of cognitive changes during task learning. Grip forces can be functionally mapped to from-global-to-local coding principles in brain networks governing somatosensory processes for motor control in cognitive tasks leading to a specific task expertise or skill. Under the light of a comprehensive overview of recent discoveries into the functional significance of human grip force variations, perspectives for future studies in cognition, in particular the cognitive control of strategic and task relevant hand movements in complex real-world precision task, are pointed out. (shrink)

Les questions de communication sont au coeur des «perceptions du risque» car la grande majorité des risques ne seraient connus que de ceux qui l'expérimentent n'eut été les médias. Le champ historiquement individualiste de la «perception du risque» a manifesté peu d'intérêt pour le contenu des mass media et leur rôle dans la construction d'une pensée sur le risque. Bien au contraire, le processus de «l'information» sur le risque était situé dans la pensée individuelle, la question centrale étant: pourquoi certains (...) risques sont-ils grossis par les individus tandis que d'autres sont minimisés? Les médias jouent un rôle essentiel dans l'amplification de certains risques et les récepteurs de l'information sont considérés comme passifs devant les stimuli médiatiques. Il faut en fait nuancer l'approche pour saisir la dimension profonde de l'appréhension du risque. En passant de la notion de «perception du risque» à celle de «représentation du risque», on peut davantage cerner les liens entre médias et pensée profonde.Issues of communication lie at the heart of "risk perception" since the vast majority of risks would be known to only those who experience them were it not for the mass media. The historically individualist field of "risk perception" has tended to pay little attention to the contents of the mass media and the role these played in constructing risk-related thinking. Rather, the processing of risk "information" was situated within individual’s minds with the central question being: why are some risks overplayed by certain individuals while others more serious risks are underplayed? The media are seen to play a major role in the amplification of certain risks with those who receive such information being viewed as rather passive followers of media signals. The starting point of this paper is the need for a more nuanced approach to the lay dimension of the apprehension of risks. The paper outlines how a shift from "risk perception" to "risk representation" highlights the links between media and lay thinking. (shrink)

Les fondements théoriques d'une analyse des activités dans les discours professionnels illustrée par des données issues de rencontres en conseil génétique sont présentés ici. En prenant l'activité comme unité de base de l'action, je me réfère rapidement à «l'activité théorique» proposée par Leontyev, rajoutant les notions de «jeux de langage» de Wittgenstein et de «types d'activités» de Levinson. L'activité d'analyse dans les discours professionnels doit aller au-delà du seul codage des instances de l'usage du langage et doit s'orienter vers la (...) compréhension d'une écologie spécifique de l'activité, incluant les dimensions relationnelles et de rôles des participants présents ou absents. Cette interprétation peut s'analyser en considérant le cadre thématique et interactionnel d'une situation donnée grâce à la prise en compte des propriétés structurelles et relationnelles dans l'usage du langage.In this paper I present a theoretical basis for activity analysis in professional discourse settings followed by an illustration of data from the genetic counseling encounters. By taking activity as the basic unit of action, I briefly draw on "activity theory" as proposed by Leontyev, supplemented by Wittgenstein's notion of "language games" and Levinson's notion of "activity types". I argue that activity analysis in the professional discourse settings has to go beyond mere coding of instances of language use towards an interpretive understanding of the activity-specific ecology, including the role-relational dimensions of co-present and absent participants. Such an interpretive task can be achieved through thematic and interactional mapping of a given encounter by taking into consideration the structural and relational properties situated language use. (shrink)

This article discusses the reasons why illusory contours are likely to result from adaptive perceptual mechanisms that have evolved across species to promote behavioral success.

Two universal functional principles of Grossberg’s Adaptive Resonance Theory decipher the brain code of all biological learning and adaptive intelligence. Low-level representations of multisensory stimuli in their immediate environmental context are formed on the basis of bottom-up activation and under the control of top-down matching rules that integrate high-level, long-term traces of contextual configuration. These universal coding principles lead to the establishment of lasting brain signatures of perceptual experience in all living species, from aplysiae to primates. They are re-visited in (...) this concept paper on the basis of examples drawn from the original code and from some of the most recent related empirical findings on contextual modulation in the brain, highlighting the potential of Grossberg’s pioneering insights and groundbreaking theoretical work for intelligent solutions in the domain of developmental and cognitive robotics. (shrink)

The experiments reported herein probe the visual cortical mechanisms that control near–far percepts in response to two-dimensional stimuli. Figural contrast is found to be a principal factor for the emergence of percepts of near versus far in pictorial stimuli, especially when stimulus duration is brief. Pictorial factors such as interposition (Experiment 1) and partial occlusion Experiments 2 and 3) may cooperate, as generally predicted by cue combination models, or compete with contrast factors in the manner predicted by the FACADE model. (...) In particular, if the geometrical conŽ guration of an image favors activation of cortical bipole grouping cells, as at the top of a T-junction, then this advantage can cooperate with the contrast of the conŽ guration to facilitate a near–far percept at a lower contrast than at an X-junction. Varying the exposure duration of the stimuli shows that the more balanced bipole competition in the X-junction case takes longer exposure times to resolve than the bipole competition in the T-junction case (Experiment 3). (shrink)

How the visual systems of different species enable them to detect and discriminate colour patterns and how such visual abilities contribute to their survival is discussed. The influence of evolutionary and environmental pressures on both perceptual capacity and colour trait production is to be considered. Visual systems with different functional anatomy have evolved in response to such pressures.

A simple working taxonomy with three classes of pictorial completion is proposed as an alternative to Pessoa et al.'s classification: area, surface, and contour completion. The classification is based on psychophysical evidence, not on the different phenomenal attributes of the stimuli, showing that pictorial completion is likely to involve mechanistic interactions in the visual system at different levels of processing. Whether the concept of “filling-in” is an appropriate metaphor for the visual mechanisms that may underlie perceptual completion is questioned.

Lehar's Gestalt Bubble model introduces a computational approach to holistic aspects of three-dimensional scene perception. The model as such has merit because it manages to translate certain Gestalt principles of perceptual organization into formal codes or algorithms. The mistake made in this target article is to present the model within the theoretical framework of the question of consciousness. As a scientific approach to the problem of consciousness, the Gestalt Bubble fails for several reasons. This commentary addresses three of these: (1) (...) the terminology surrounding the concept of consciousness is not rigorously defined; (2) it is not made evident that three-dimensional scene perception requires consciousness at all; and (3) it is not clearly explained by which mechanism(s) the “picture-in-the-head,” supposedly represented in the brain, would be made available to different levels of awareness or consciousness. Footnotes1 After Shakespeare, Macbeth. (shrink)

Shepard's concept of internalization does not suggest mechanisms which help to understand how the brain adapts to changes, how representations of a steadily changing environment are updated or, in short, how brain learning continues throughout life. Neural mechanisms, as suggested by Barlow, may prove a more powerful alternative. Brain theories such as Adaptive Resonance Theory (ART) propose mechanisms to explain how representational activities may be linked in space and time. Some predictions of ART are confirmed by psychophysical and neurophysiological data. (...) [Barlow; Shepard]. (shrink)

We question the ecological plausibility as a general model of cognition of van der Velde's & de Kamps's combinatorial blackboard architecture, where knowledge-binding in space and time relies on the structural rules of language. Evidence against their view of the brain and an ecologically plausible, alternative model of cognition are brought forward.

The heuristic value of Pylyshyn's cognitive impenetrability theory is questioned in this commentary, mainly because, as it stands, the key argument cannot be challenged empirically. Pylyshyn requires unambiguous evidence for an effect of cognitive states on early perceptual mechanisms, which is impossible to provide because we can only infer what might happen at these earlier levels of processing on the basis of evidence collected at the post-perceptual stage. Furthermore, the theory that early visual processes cannot be modified by cognitive states (...) implies that it is totally pointless to try to investigate interactions between consciousness and neurosensory processes. (shrink)

This article presents psychophysical evidence that the Kanizsa Square does not produce an 'object superiority effect' previously reported in similar Gestalt configurations. Implications of the findings for Gestalt theory are addressed.

The perceived strength of darkness enhancement in the centre of surfaces surrounded or not surrounded by illusory contours was investigated as a function of proximity of the constituent elements of the display and their angular size. Magnitude estimation was used to measure the perception of the darkness phenomenon in white-on-grey stimuli. Darkness enhancement was perceived in both types of the stimuli used, but more strongly in the presence of illusory contours. In both cases, perceived darkness enhancement increased with increasing proximity (...) of the constituent parts of the display and with their angular size. These results suggest that the occurrence of darkness (or brightness) enhancement phenomena in the centre of the displays is not directly related to illusory contours, which only reinforce the subjective surface brightness/darkness. (shrink)