Although the individuality of whole-body movements has been suspected for years, the scientific proof and systematic investigation that individuals possess unique movement patterns did not manifest until the introduction of the criteria of uniqueness and persistence from the field of forensic science. Applying the criteria of uniqueness and persistence to the individuality of motor learning processes requires complex strategies due to the problem of persistence in the learning processes. One approach is to examine the learning process of different movements. For (...) this purpose, it is necessary to differentiate between two components of movement patterns: the individual-specific component and the discipline-specific component. To this end, a kinematic analysis of the shot put, discus, and javelin throwing movements of seven high-performance decathletes during a qualification competition was conducted. In total, joint angle waveforms of 57 throws formed the basis for the recognition task of individual- and discipline-specific throwing patterns using a support vector machine. The results reveal that the kinematic throwing patterns of the three disciplines could be distinguished across athletes with a prediction accuracy of up to 100% (57 of 57 throws). However, athlete-specific throwing characteristics could also be identified across the three disciplines. Prediction accuracies of up to 52.6% indicated that up to 10 out of 19 throws of a discipline could be assigned to the correct athletes, based on only knowing these athletes from the kinematic throwing patterns in the other two disciplines. The results further suggest that individual throwing characteristics across disciplines are more pronounced in shot put and discus throwing than in javelin throwing. Applications for training and learning practice in sports and therapy are discussed. In summary, the chosen approach offers a broad field of application related to the search of individually optimal movement solutions in sports. (shrink)

The scientific and practical fields—especially high-performance sports—increasingly request a stronger focus be placed on individual athletes in human movement science research. Machine learning methods have shown efficacy in this context by identifying the unique movement patterns of individuals and distinguishing their intra-individual changes over time. The objective of this investigation is to analyze biomechanically described movement patterns during the fatigue-related accumulation process within a single training session of a high number of repeated executions of a ballistic sports movement—specifically, the frontal (...) foot kick (mae-geri) in karate—in expert athletes. The two leading research questions presented for consideration are (1) Can characteristics of individual movement patterns be observed throughout the entire training session despite continuous changes, i.e., even as fatigue-related processes increase? and (2) How do intra-individual movement patterns change as fatigue-related processes increase throughout a training session? Sixteen expert karatekas performed 606 frontal foot kicks directed toward an imaginary target. The kicks were performed in nine sets at 80% (K-80) of the self-experienced maximal intensity. In addition, six kicks at maximal intensity (K-100) were performed after each of the nine sets. Between the sets, the participants took a 90-s break. Three-dimensional full-body kinematic data of all kicks were recorded with 10 infrared cameras. The normalized waveforms of nine upper- and lower-body joint angles were classified using a supervised machine learning method (support vector machine). The results of the classification revealed a disjunct distinction between the kinematic movement patterns of individual athletes. The identification of unique movement patterns of individual athletes was independent of the intensity and the degree of fatigue-related processes. In other words, even with the accumulation of fatigue-related processes, the unique movement patterns of an individual athlete can be clearly identified. During the training session, changes in intra-individual movement patterns could also be detected, indicating the occurrence of adaptations in individual movement patterns throughout the fatigue-related accumulation process. The results suggest that these adaptations can be modeled in terms of changes in patterns rather than increasing variance. Practical consequences are critically discussed. (shrink)

Besides the pure pleasure of watching a dance performance, dance as a whole-body movement is becoming increasingly popular for health-related interventions. However, the science-based evidence for improvements in health or well-being through dance is still ambiguous and little is known about the underlying neurophysiological mechanisms. This may be partly related to the fact that previous studies mostly examined the neurophysiological effects of imagination and observation of dance rather than the physical execution itself. The objective of this pilot study was to (...) investigate acute effects of a physically executed dance with its different components on the electrical brain activity and its functional connectivity using electroencephalographic analysis. Eleven dance-inexperienced female participants first learned a Modern Jazz Dance choreography over three weeks. Afterwards, the acute effects on the EEG brain activity were compared between four different test conditions: physically executing the MJD choreography with music, physically executing the choreography without music, imaging the choreography with music, and imaging the choreography without music. Every participant passed each test condition in a randomized order within a single day. EEG rest-measurements were conducted before and after each test condition. Considering time effects the physically executed dance without music revealed in brain activity analysis most increases in alpha frequency and in functional connectivity analysis in all frequency bands. In comparison, physically executed dance with music as well as imagined dance with music led to fewer increases and imagined dance without music provoked noteworthy brain activity and connectivity decreases at all frequency bands. Differences between the test conditions were found in alpha and beta frequency between the physically executed dance and the imagined dance without music as well as between the physically executed dance with and without music in the alpha frequency. The study highlights different effects of a physically executed dance compared to an imagined dance on many brain areas for all measured frequency bands. These findings provide first insights into the still widely unexplored field of neurological effects of dance and encourages further research in this direction. (shrink)

When it comes to assessing the deontic status of acts and policies in the context of risk and uncertainty, moral theories are often at a loss. In this paper we hope to show that employing a multi-dimensional consequentialist framework provides ethical guidance for decision-making in complex situations. The paper starts by briefly rehearsing consequentialist responses to the issue of risk, as well as their shortcomings. We then go on to present our own proposal based on three dimensions: wellbeing, fairness and (...) probability. In the last section we apply our approach to a comparison of different climate policy options, including stratospheric solar-radiation management. (shrink)

The ArgumentThe article deals with the interrelation between Galileo and the visual arts. It presents a couple of drawings from the hand of Galileo and confronts them with Viviani's report that Galileo had not only wanted to become an artist in his youth but stayed close to the field of visual arts throughout his lifetime. In the ambiance of these drawings the famous moon watercolors are not in the dark. They represent a very acute and reasonable tool to convince the (...) people who trusted images more than words. The article ends with Panofsky's argument that it was Galileo's anti-Mannerist notion of art that evoked a repulsion of Kepler's ellipses. It tries to show that it was again an aesthetical prejudice that hindered Einstein from accepting Panofsky's theory. (shrink)

Die Forschung zu und über Leonhard Euler verweist oft darauf, dass das Entstehen und Etablieren neuer Zeichenpraktiken zum dominierenden Legitimationsmuster der übersichtlichen Mathematik in der Zeit der Aufklärung wird. Bei genauerem Hinsehen fällt jedoch auf, dass die konkreten Formen der Erscheinung und Durchsetzung dieser Praktiken mit ihren symbolischen Dimensionen über Jahrzehnte kaum ins Zentrum der Aufmerksamkeit gerückt wurden. Gerade diesen Formen der Wissensentfaltung und -vermittlung versuchen die hier versammelten Aufsätze eine zentrale Position zukommen zu lassen. Denn im Falle Eulers beschränkt (...) sich die Problematik solcher Erscheinungen nicht auf das mathematische Abstrahieren der zu lösenden Aufgaben, sind diese doch mit den graphischen Abstrahierungen vernetzt, deren Erscheinungskriterien untersucht werden. (shrink)

Forschungen zur verkorperten Intelligenz und zu den symbolischen Vermittlungen des menschlichen Geistes werden bislang zumeist in getrennten Disziplinen betrieben. Die aus der Kulturphilosophie, Kunst- und Bildwissenschaft, Theologie, Medizin, Psychiatrie, Psychologie und Kognitionswissenschaft stammenden Beitrage des Bandes vereint jedoch das gemeinsame Ziel, einen umfassenden Begriff von Verkorperung zu entwickeln, der die Grenzziehung zwischen kulturalistischen und naturalistischen Ansatzen uberwindet.".

Contemporary biographies of Galilei emphasize, in several places, that he was a masterful draughtsman. In fact, Galilei studied at the art academy, which is where his friendship with Ludovico Cigoli developed, who later became the official court artist. The book focuses on this formative effect – it tracks Galilei’s trust in the epistemological strength of drawings. It also looks at Galilei’s activities in the world of art and his reflections on art theory, ending with an appreciation of his fame; after (...) all, he was revered as a rebirth of Michelangelo. For the first time, this publication collects all aspects of the appreciation of Galilei as an artist, contemplating his art not only as another facet of his activities, but as an essential element of his research. (shrink)

In three experiments, we investigated the computational complexity of German reciprocal sentences with different quantificational antecedents. Building upon the tractable cognition thesis (van Rooij, 2008) and its application to the verification of quantifiers (Szymanik, 2010) we predicted complexity differences among these sentences. Reciprocals with all-antecedents are expected to preferably receive a strong interpretation (Dalrymple et al., 1998), but reciprocals with proportional or numerical quantifier antecedents should be interpreted weakly. Experiment 1, where participants completed pictures according to their preferred interpretation, provides (...) evidence for these predictions. Experiment 2 was a picture verification task. The results show that the strong interpretation was in fact possible for tractable all but one-reciprocals, but not for exactly n. The last experiment manipulated monotonicity of the quantifier antecedents. (shrink)

This article explores the relationship between theory and praxis by contrasting three different models of intellectual endeavor: totalizing, particular and decolonial. Attending to the critique that Gayatri Spivak raised against Michel Foucault and Gilles Deleuze in Can the Subaltern Speak?, this article advocates a dramaturgical reading of texts as a model for political theory to address subaltern agency. It reads such agency in the smile that Pier Paolo Pasolini registers in his 1967 film version of Sophocles’ play, Oedipus Tyrannos. Dramaturgically (...) read, Oedipus reveals another text, the tragic history of a yet insufficiently explored democratic alternative that goes against the established democracy and its complicity with inequality in the continued naturalization of slavery despite its foundation in equality. This subtext demands understanding Oedipus as a political production from the speechless agency of dissident servants, a more subversive aspect of democratic politics. (shrink)

In this article I criticize Hannah Arendt's concept of natality as unable to confront the ways in which racial capitalism links the biopolitical cultivation of natality to the necropolitical natal alienation that is structural to modern slavery. I base this argument in an understanding of social death as the production of racial capitalism, one that gives slavery an aftermath, post-abolition, which continues to dispossess Black and brown people of their capacity to begin something anew via their inclusion into juridical personhood. (...) I conclude this article with an articulation of the political impossibility of Black and brown people to begin something anew under a polis that remains structured by racial capitalism in Ralph Ellison's phenomenological description of the invisible man's misrecognized new beginnings with the Brotherhood. (shrink)

The Militant Intellect reconceptualizes critical theory as a field tasked with cultivating the analytical skills of the general intellect to work towards the intersectional and structural death of the colonist and the materialization of that feminist decolonial communist queer marronage world that constitutes its horizon.

Within the debate on the epistemology of aesthetic appreciation, it has a long tradition, and is still very common, to endorse the sentimentalist view that our aesthetic evaluations are rationally grounded on, or even constituted by, certain of our emotional responses to the objects concerned. Such a view faces, however, the serious challenge to satisfactorily deal with the seeming possibility of faultless disagreement among emotionally based and epistemically appropriate verdicts. I will argue that the sentimentalist approach to aesthetic epistemology cannot (...) accept and accommodate this possibility without thereby undermining the assumed capacity of emotions to justify corresponding aesthetic evaluations – that is, without undermining the very sentimentalist idea at the core of its account. And I will also try to show that sentimentalists can hope to deny the possibility of faultless disagreement only by giving up the further view that aesthetic assessments are intersubjective – a view which is almost as traditional and widely held in aesthetics as sentimentalism, and which is indeed often enough combined with the latter. My ultimate conclusion is therefore that this popular combination of views should better be avoided: either sentimentalism or intersubjectivism has to make way. (shrink)

From citizens paying taxes to employees following their bosses’ orders and kids obeying their parents, we take it for granted that a whole range of authorities have the power to impose duties on others. However, although authority is often accepted in practice, it looks philosophically problematic if we conceive persons as free and as equals. -/- In this short and accessible book, Fabian Wendt examines the basis of authority, discussing five prominent theories that try to explain how claims to (...) authority can be vindicated. Focusing in particular on the issue of how states can rightfully claim authority, he rigorously analyses the theories’ arguments and evaluates their strengths and weaknesses. He also debates anarchism as an alternative that should be taken seriously if no theory ultimately succeeds in explaining state authority. -/- This clear and engaging book will be essential reading for anyone grappling with the most fundamental questions of authority and obligation in political theory and political philosophy. (shrink)

Philosophy &Public Affairs, Volume 51, Issue 2, Page 166-190, Spring 2023.

In this paper, I describe and discuss two mental phenomena which are somewhat neglected in the philosophy of mind: focused daydreaming and mind-wandering. My aim is to show that their natures are rather distinct, despite the fact that we tend to classify both as instances of daydreaming. The first difference between the two, I argue, is that, while focused daydreaming is an instance of imaginative mental agency, mind-wandering is not—though this does not mean that mind-wandering cannot involve mental agency at (...) all. This personal-level difference in agency and purposiveness has, furthermore, the consequence that instances of mind-wandering do not constitute unified and self-contained segments of the stream of consciousness—in stark contrast to focused daydreams. Besides, the two kinds of mental phenomena differ in whether they possess a narrative structure, and in how we may make sense of the succession of mental episodes involved. (shrink)