The threat-advantage hypothesis that threatening or negative faces can be discriminated preattentively has often been tested in the visual search paradigm with schematic stimuli. The results have been heterogeneous, suggesting that the choice of particular stimuli have profound effects on search efficiency. Because this conclusion is hampered by differences in experimental procedure, I selected examples from past literature and presented replicas of stimulus pairs (schematic positive and negative faces) in a within-participants design. Although there was a consistent advantage for angry-face (...) targets, search efficiency varied between 8 and 35 ms/item, yielding no clear evidence for the threat-advantage hypothesis. Furthermore, search efficiency for negative- and positive-face targets was highly correlated over stimulus pairs, which implies that whatever complicates the search for the negative face of a pair also complicates the search for the positive face. This results pattern argues against the hypothesised preattentive detector. (shrink)

Recently, there has been renewed interest in so-called evidence-based policy making. Enticed by the grand promises of Big Data, public officials seem increasingly inclined to experiment with more data-driven forms of governance. But while the rise of Big Data and related consequences has been a major issue of concern across different disciplines, attempts to develop a better understanding of the phenomenon's historical foundations have been rare. This short commentary addresses this gap by situating the current push for numerical evidence within (...) a broader socio-political context, demonstrating how the epistemological claims of Big Data science intersect with specific forms of trust, truth, and objectivity. We conclude by arguing that regulators' faith in numbers can be attributed to a distinct political culture, a representative democracy undermined by pervasive public distrust and uncertainty. (shrink)

This commentary discusses three points: (1) The implications of the fact that it is rational to ignore base rates if probabilities are estimated by frequencies from samples without missing data (natural sampling); (2) second order probabilities distributions are a plausible way to model imprecise probabilities; and (3) Bayesian networks represent a normative reference for multi-cue models of probabilistic inference.

In an everyday private practice setting, regularly also existential topics will emerge from doctor-patient encounters. These are often questions of coping with life and lifestyle. To enable a thorough discussion of such topics, an implicit, and sometimes also explicit reference to a philosophical background is needed. Philosophical concepts to be used in this realm are discussed. An individual patient-doctor interaction is used as an example to demonstrate the doctor’s choice of hermeneutical and phenomenological philosophical concepts.

In an everyday private practice setting, regularly also existential topics will emerge from doctor-patient encounters. These are often questions of coping with life and lifestyle. To enable a thorough discussion of such topics, an implicit, and sometimes also explicit reference to a philosophical background is needed. Philosophical concepts to be used in this realm are discussed. An individual patient-doctor interaction is used as an example to demonstrate the doctor’s choice of hermeneutical and phenomenological philosophical concepts.

Cognitive and biological theories of emotion consider surprise as an emotional response to unexpected events. Four experiments examined the latency and the duration of one behavioural component of surprise: The interruption of ongoing action. Participants were presented with an unannounced visual event—the appearance of new perceptual objects—during the execution of a continuous action—a rapid alternate finger tapping—which allowed a precise measurement of the latency, and the duration of an action interruption induced by the surprising event. Of the participants, 78% interrupted (...) the tapping with a mean latency of 214 ms and a mean duration of 995 ms. Variations of the number and perceptual heterogeneity of the new objects revealed that the perceptual analysis of the surprising event contributes significantly to the interruption duration. (shrink)

Die zentrale Rolle des Gedächtnisses in der Entwicklung von Lebewesen wurde von Biologen wie Ernst Haeckel, Ewald Hering und Jakob von Uexküll erkannt, wobei zwischen einem Artgedächtnis und einem individuellen Gedächtnis unterschieden wird. Ersteres ist für die Aufrechterhaltung und Weiterentwicklung einer artspezifischen Erscheinungsform verantwortlich, letzteres gestaltet die Erinnerung an individuelle Erfahrungen. Im vorliegenden Band werden die Vorstellungen dieser Biologen mit Ideen der Philosophen G.W.F. Hegel, Alfred N. Whitehead, John Dewey, Ernst Cassirer, Henri Bergson und Reto L. Fetz in einer kohärenten (...) Theorie der Organismen, die auch den Menschen und seine Geschichte umfasst, aufeinander abgestimmt. (shrink)

The properties of the phosphate uptake system of the cyanobacterium Anacystis nidulans have been studied during the transition from a phosphate-deficient non-growing state to a non-deficient growing state. In the phosphate-deficient state the high affinity phosphate transport system in the cell membrane is extremely adaptive. As a result of these adaptive features the phosphate transport system cannot be described by determinate, fixed parameters, because the transport system is influenced by the measurement of the uptake process itself. When the growing state (...) has been initiated by a persisting phosphate pulse, the transport system rapidly loses its adaptive features and can then be characterized by determinate parameters that remain unchanged for a long period of time, even if no uptake occurs in that time. Depending on the amount of phosphate stored during a pulse the cell makes a choice between slow or fast growth. In the latter case the light harvesting and energy converting machinery is completely reorganized before growth commences. Thereby the components of this machinery conform to each other and to the stable properties of the phosphate transport system. It is suggested that the mutual adjustment of these adaptive energy converting subunits is guided by attractors that function as the final cause for the development of the whole system.An application of this model to an analysis of the selforganization of aquatic ecosystems is discussed. (shrink)

Using a generalized conception of experience, from which all features characteristic for higher animals (such as consciousness and thought) have been removed, allowed relating experience to adaptive processes in lower organisms. The temporal vector character of every current experience, containing as well memories of past experiences as intentions for future activities, can then be found in the adaptive response of cyanobacteria to alterations in phosphate supply, particularly in energetic manifestations of this phenomenon. A possible analogy between adaptive events as the (...) “atomic units” of physiological adaptation and Whitehead's actual occasion of experience is discussed. (shrink)

In this clear and accessible book, Gernot Bohme places philosophical ethics in the context of our individual and social lives. Arguing against the conception of ethics as a body of knowledge, Bohme defines morality as a matter of 'serious questions'. In the case of an individual, a serious question is one that determines that person's mode of living. In the case of society, a serious question is one that shapes our social norms. In Ethics in Context, Bohme explores the (...) key areas of moral living and moral discourse. He examines some of the urgent issues affecting society today, such as the moral implications of reproductive technology, man's mastery over nature and the right of citizenship. This book is a lucid and engaging guide to ethics, which will be of great interest to students of philosophy and, indeed, to all those interested in the subject. (shrink)

ABSTRACTTo build a process model of the understanding of conditionals we extract a common core of three semantics of if-then sentences: the conditional event interpretation in the coherencebased probability logic, the discourse processingtheory of Hans Kamp, and the game-theoretical approach of Jaakko Hintikka. The empirical part reports three experiments in which each participant assessed the probability of 52 if-then sentencesin a truth table task. Each experiment included a second task: An n-back task relating the interpretation of conditionals to working memory, (...) a Bayesian bookbag and poker chip task relating the interpretation of conditionals to probability updating, and a probabilistic modus ponens task relating the interpretation of conditionals to a classical inference task. Data analysis shows that the way in which the conditionals are interpreted correlates with each of the supplementary tasks. The results are discussed within the process model proposed in the introduction. (shrink)

This essay raises a philosophical question concerning the language of Life Theory. It aims to prove the assumption that in contrast to Life Science, which today is connected to neuroscience and biotechnology, a theory that comprehends “life itself” must exceed the computerized mathematics of modern materialistic positivism. For this purpose, the conceptual possibility of such a theory is analysed from the perspective of 20th century philosophy of life. Beginning with Henri Bergson, who developed an immanent concept of life“from within itself” (...) in L’évolution créatrice, the analysis turns to Alain Badiou, whose fundamental onto-phenomenology of being is summed up in Logiques des mondes by answering the question “what is it to live”. The comparison between the two philosophies exposes the conditions of a Life Theory that encompasses, beyond the results of the digitalizable language translated from the neurons of the human brain, the uncountable and unpredictable aspects of living and being alive. These conditions are: an ethics of universality, a differential philosophy of time, and a concept of independent novelty enforced by the aesthetics of subjective creation. (shrink)

Interest in sensory atmospheres and architectural and urban ambiances has been growing for over 30 years. A key figure in this field is acclaimed German philosopher Gernot Böhme whose influential conception of what atmospheres are and how they function has been only partially available to the English-speaking public. This translation of key essays along with an original introduction charts the development of Gernot Böhme's philosophy of atmospheres and how it can be applied in various contexts such as scenography, (...) commodity aesthetics, advertising, architecture, design, and art. The phenomenological analysis of atmospheres has proved very fruitful and its most important, and successful, application has been within aesthetics. The material background of this success may be seen in the ubiquitous aestheticization of our lifeworld, or from another perspective, of the staging of everything, every event and performance. The theory of atmospheres becoming an aesthetic theory thus reveals the theatrical, not to say manipulative, character of politics, commerce, of the event-society. But, taken as a positive theory of certain phenomena, it offers new perspectives on architecture, design, and art. It made the spatial and the experience of space and places a central subject and hence rehabilitated the ephemeral in the arts. Taking its numerous impacts in many fields together, it initiated a new humanism: the individual as a living person and his or her perspective are taken seriously, and this fosters the ongoing democratization of culture, in particular the possibility for everybody to participate in art and its works. (shrink)