Based on increased user experience during stimulation, frequency-modulated steady-state visual evoked potentials have been suggested as an improved stimulation method for brain-computer interfaces. Adapting such a novel stimulation paradigm requires in-depth analyses of all different stimulation parameters and their influence on brain responses as well as the user experience during the stimulation. In the current manuscript, we assess the influence of different values for the modulation index, which determine the spectral distribution in the stimulation signal on FM-SSVEPs. We visually stimulated (...) 14 participants at different target frequencies with four different values for the modulation index. Our results reveal that changing the modulation index in a way that elevates the stimulation power in the targeted sideband leads to increased FM-SSVEP responses. There is, however, a tradeoff with user experience as increased modulation indices also lead to increased perceived flicker intensity as well as decreased stimulation comfort in our participants. Our results can guide the choice of parameters in future FM-SSVEP implementations. (shrink)

BackgroundTo probe the functional role of brain oscillations, transcranial alternating current stimulation has proven to be a useful neuroscientific tool. Because of the excessive tACS-caused artifact at the stimulation frequency in electroencephalography signals, tACS + EEG studies have been mostly limited to compare brain activity between recordings before and after concurrent tACS. Critically, attempts to suppress the artifact in the data cannot assure that the entire artifact is removed while brain activity is preserved. The current study aims to evaluate the (...) feasibility of specific artifact correction techniques to clean tACS-contaminated EEG data.New MethodIn the first experiment, we used a phantom head to have full control over the signal to be analyzed. Driving pre-recorded human brain-oscillation signals through a dipolar current source within the phantom, we simultaneously applied tACS and compared the performance of different artifact-correction techniques: sine subtraction, template subtraction, and signal-space projection. In the second experiment, we combined tACS and EEG on one human subject to demonstrate the best-performing data-correction approach in a proof of principle.ResultsThe tACS artifact was highly attenuated by SSP in the phantom and the human EEG; thus, we were able to recover the amplitude and phase of the oscillatory activity. In the human experiment, event-related desynchronization could be restored after correcting the artifact.Comparison With Existing MethodsThe best results were achieved with SSP, which outperformed sine subtraction and template subtraction.ConclusionOur results demonstrate the feasibility of SSP by applying it to a phantom measurement with pre-recorded signal and one human tACS + EEG dataset. For a full validation of SSP, more data are needed. (shrink)

Definition of the problemA myocardial infarction is often a vitally and emotionally threatening situation for the affected. Unconscious coping mechanisms in dealing with the heart disease may result in, for example, complete denial or emotional decompensation.ArgumentAn understanding of myocardial infarction as a borderline situation may provide theoretical enrichment for clinicians and point to a third coping avenue, described as “posttraumatic growth”. Affected individuals often refer to the event as a “wake-up call”. Clinical knowledge of these different coping mechanisms may in (...) turn lead to a relativization of primarily subjectivist positions and substantively hedonistic or preferentialist notions of good life or “quality of life”. Such a position would in turn be compatible with the deliberative model of physician–patient communication.ConsequencesIn the light of such a broader understanding of disease coping, the task of (psychosomatic) physicians would thus to accompany persons with heart disease, to be aware of the teachable moment and to enable a process of development for the patients. (shrink)

Basic motor competencies are a prerequisite for children to be physically active, participate in sports and thus develop a healthy, active lifestyle. The present study provides a broad screening of BMC and associations with age, sex, body mass index and extracurricular physical activity in 10 different European countries. The different country and regional contexts within Europe will offer a novel view on already established BMC associations. The cross-sectional study was conducted in 11 regions in 10 European countries in 2018. The (...) motor competence areas, object movement and self-movement, were assessed using the MOBAK-1-2 test instrument in 3758 first and second graders during Physical Education classes. Children were questioned about their extracurricular PA and age. Their body weight and height were measured in order to calculate BMI. Statistical analyses included variances and correlations. The results showed significant differences in BMC levels between countries whereas associations between BMC and correlates were similar. Boys performed significantly better in OM while girls performed better in SM. Age was consistently positively related to OM and SM with older children reaching higher levels of BMC than younger ones. While participation rates for extracurricular PA differed widely, participation in ball sports was correlated with OM and SM. Participation in individual sports showed a significant association with SM. In summary, BMC levels of children seem to depend on where they live and are strongly related to their participation in extracurricular PA. Therefore, education and health policies, in order to enhance motor competence development and PA participation, are recommended. Further research on country-specific Physical Education frameworks and their influence on BMC will provide more insights into structural factors and cultural characteristics of BMC development. On a school level, support tools and educational materials for teachers about BMC may enable children to achieve a basic level of motor competencies through Physical Education, contributing to lifelong participation in PA. (shrink)

The emergence of a school around the theology of Albrecht Ritschl remains an important aspect of modern Protestant theology. On the basis of previously unpublished correspondence between Ritschl and some of his most celebrated students, we are able to investigate anew the circumstances under which the Ritschlian school was formed, and to ask why Ritschl's theology attracted a new generation of theologians and historians of theology. By focusing on Wilhelm Herrmann, one of the most significant systematic theologians of the (...) Ritschlian school, this article shows how Ritschl's attempt to overcome apologetics and classical metaphysics as well as his way of correlating religion and morality opened a distinctive and appealing alternative to the various theological schools of his time. (shrink)

ABSTRACTIn his book, Hermeneutics and Reflection, Friedrich-Wilhelm von Herrmann outlines what he sees as the fundamental differences between Edmund Husserl’s “theoretical” phenomenology and Martin Heidegger’s “a-theoretical” phenomenology, which he frames in terms of the distinction between “reflective observation” and “hermeneutic understanding”. In this paper, I will clarify the sense of these terms in order to elucidate some of the crucial similarities and differences between Husserl and Heidegger. Against von Herrmann’s characterization of the Husserlian project, I argue that we (...) should not consider these differences in terms of “reflection”, since this runs the risk of misconstruing Husserlian phenomenology with the philosophical tradition he was striving against. Taken together, by way of a close reading of von Herrmann, the following discussion will serve as a brief sketch of the early Heidegger’s turn away from Husserlian phenomenology and toward his own hermeneutic phenomenology. (shrink)

Die Kategorie des Menschseins wird aufgrund wechselnder Wissensbestände und Orientierungskrisen immer wieder neu bestimmt. Das Ästhetische ist damit eng verbunden. 'Aisthesis' ist erstens eine Form der sinnlichen und empfindenden Wahrnehmung, ein vorrationaler 'way of worldmaking' (Nelson Goodman), der den Bezug des Menschen zu sich und seiner Welt moduliert. Ästhetische Vorstellungen grundieren zweitens aber auch die Idee des Humanen und die Normen menschlicher Handlungs-weisen. Und drittens sind ästhetische Erkenntnis- und Ausdrucksformen Teil eines 'selbstgesponnenen Bedeutungsgewebes' (Clifford Geertz) der Kultur, das die Grenzen (...) und das 'Andere' des Menschen bestimmt. Der interdisziplinäre Sammelband vereint aus verschiedenen Fächern und Forschungsperspektiven heraus Einblicke in die Wechselwirkungen zwischen anthropologischen Fragestellungen und ästhetischen Formationen. Mit Beiträgen von Horst Bredekamp, Steffen Martus, Martin Seel, Christoph Wulf, Elisabeth Timm u.a. (shrink)

_Critical Heidegger_ brings together a selection of the best work on Martin Heidegger from a number of key commentators working in Europe. These new and classic essays, for the most part translated from German and French originals, are an essential guide to the current European reception of Heidegger and make available essays that have had considerable impact on English-language Heidegger studies. Essays in this collection: * Marlene Zarader, `The mirror with the triple reflection' * Franco Volpi, `Dasein and Praxis: Aristotle' (...) * Jean-Luc Marion, `Heidegger on Descartes' * Christopher Macann, `Heidegger's Kant Interpretation' * Michel Haar, `Critical Remarks on the Heideggerian Reading of Nietzsche' * Maria Villela-Petit, `Heidegger's Conception of Space' * Francoise Dastur, `The ekstatico-horizontal constitution of temporality' * F-W von Herrmann, `Way and Method in Philosophy' * Samuel Ijsseling, `The End of Philosophy as the Commencement of Thinking' * Otto Poggler, `Does the saving power also grow? Heidegger's last paths' * Ernst Tugendhat, `Heidegger's Idea of Truth' * Karl-Otto Apel, `Wittgenstein and Heidegger'. (shrink)

In an age where issues like climate change and the unintended consequences of technological innovation are high on the ethical and political agenda, questions about the nature and extent of our responsibilities to future generations have never been more important, yet simultaneously so difficult to answer. This book takes a unique approach to the problem by drawing on diverse traditions of thinking about care (including developmental psychology, phenomenology and feminist ethics) to explore the nature and meaning of our relationship with (...) the future. Demonstrating that many influential perspectives on intergenerational ethics, including positions advanced by John Rawls, Brian Barry, and Ulrich Beck are undermined by problems relating to uncertainty, it shows that an approach based on care ethics can confront the uncertain future successfully and give a viable account of the nature and scope of future-oriented responsibilities. (shrink)

Fiction and truth : ancient stories about Pythagoras -- In search of the historical Pythagoras -- The Pythagorean secret society -- Thinkers influenced by Pythagoras and his pupils.

Suppose we believe that God created the world. Then surely we want it to be the case that he intended, in some sense at least, to create THIS world. Moreover, most theists want to hold that God didn't just guess or hope that the world would take one course or another; rather, he KNEW precisely what was going to take place in the world he planned to create. In particular, of each person P, God knew that P was to exist. (...) Call this the "standard" conception. Most theists find the standard conception appealing. Unfortunately, the view seems to conflict with the equally appealing idea — call it "temporal actualism" — that there are no "future" individuals beyond those that already exist in the present moment. For, on this view, for any historical person P, prior to creation, there was no such person as P and hence nothing about P for God to know. Hence, in particular, God couldn't have known that P was to exist. This is of course not a new problem. But past solutions to it are highly problematic. In this paper, after canvassing previous approaches, I will propose a solution that seems to preserve both temporal actualism and a suitably robust form of the standard conception while avoiding the pitfalls of the past. (shrink)

This publication is an appreciation of the natural philosophy and epistemology of the philosopher Grete (Henry-)Hermann. A student of the mathematician Emmy Noether and the philosopher Leonard Nelson, she was one of the early interpreters of quantum mechanics. Werner Heisenberg memorialized her in his book "The Part and the Whole". For the first time, her writings on natural philosophy and epistemology are collected in one volume. An extensive introduction by various authors introduces the work of Grete Henry-Hermann. This edition is (...) supplemented by excerpts from correspondence on natural philosophical and epistemological topics, including correspondence with Carl Friedrich von Weizsäcker, Werner Heisenberg, and Gustav Heckmann. Contents ● Grete Henry-Hermann's contribution to the interpretation of quantum mechanics ● Grete Henry-Hermann's work on the relationship between modern physics and transcendental philosophy ● Grete Hermann's dissertation: The Question of the Finitely Many Steps in the Theory of Polynomial Ideals (1925) ● Discussions on the question of free will and the significance of behavioral research for the critique of reason ● Excerpts from correspondence from 1925 to 1982. (shrink)