Our perception of where touch occurs on our skin shapes our interactions with the world. Most accounts of cutaneous localisation emphasise spatial transformations from a skin-based reference frame into body-centred and external egocentric coordinates. We investigated another possible method of tactile localisation based on an intrinsic perception of ‘skin space’. The arrangement of cutaneous receptive fields (RFs) could allow one to track a stimulus as it moves across the skin, similarly to the way animals navigate using path integration. We applied (...) curved tactile motions to the hands of human volunteers. Participants identified the location midway between the start and end points of each motion path. Their bisection judgements were systematically biased towards the integrated motion path, consistent with the characteristic inward error that occurs in navigation by path integration. We thus showed that integration of continuous sensory inputs across several tactile RFs provides an intrinsic mechanism for spatial perception. (shrink)

Recently, the debate on human enhancement has shifted from familiar topics like cognitive enhancement and mood enhancement to a new and – to no one's surprise – controversial subject, namely moral enhancement. Some proponents from the transhumanist camp allude to the ‘urgent need’ of improving the moral conduct of humankind in the face of ever growing technological progress and the substantial dangers entailed in this enterprise. Other thinkers express more sceptical views about this proposal. As the debate has revealed so (...) far, there is no shared opinion among philosophers about the meaning, prospects, and ethical evaluation of moral enhancement. In this article I will address several conceptual and practical problems of this issue, in order to encourage discussion about the prospects of moral enhancement in the future. My assumption is that for the short term, there is little chance of arriving at an agreement on the proper understanding of morality and the appropriateness of one single ethical theory; apart from this, there are further philosophical puzzles loosely referred to in the debate which add to theoretical confusion; and even if these conceptual problems could be solved, there are still practical problems to be smoothed out if moral enhancement is ever to gain relevance apart from merely theoretical interest. My tentative conclusion, therefore, will be that moral enhancement is not very likely to be made sense of – let alone realized – in the medium-term future. (shrink)

It remains controversial whether touch is a truly spatial sense or not. Many philosophers suggest that, if touch is indeed spatial, it is only through its alliances with exploratory movement, and with proprioception. Here we develop the notion that a minimal yet important form of spatial perception may occur in purely passive touch. We do this by showing that the array of tactile receptive fields in the skin, and appropriately relayed to the cortex, may contain the same basic informational building (...) blocks that a creature navigating around its environment uses to build up a perception of space. We illustrate this point with preliminary evidence that perception of spatiotemporal patterns on the human skin shows some of the same features as spatial navigation in animals. We argue (a) that the receptor array defines a ‘tactile field’, (b) that this field exists in a minimal form in ‘skin space’, logically prior to any transformation into bodily or external spatial coordinates, and (c) that this field supports tactile perception without integration of concurrent proprioceptive or motor information. The basic cognitive elements of space perception may begin at lower levels of neural and perceptual organisation than previously thought. (shrink)

ZusammenfassungDer vorliegende Kommentar wirft, nach einer knappen Zusammenfassung der Argumentation des Beitrags von Tatjana Tarkian, einige grundsätzliche Fragen auf, welche die Geltungsreichweite und Anwendbarkeit der Prinzipien der reproduktiven Autonomie und der wohltätigen Fortpflanzung betreffen. Welche prospektiven Eltern sind Adressat*innen der Prinzipien der reproduktiven Freiheit und der wohltätigen Fortpflanzung? Stellen diese Prinzipien universell und überzeitlich gültige allgemeine Prinzipien dar, die generell in jeder Situation reproduktiver Entscheidung Berücksichtigung finden sollten? Lassen sie sich nur unter der Voraussetzung bestimmter Bedingungen bzw. im Rahmen bestimmter (...) Kontexte anwenden? Sind die beiden Prinzipien kompatibel oder widersprechen sie sich? Kommt prospektiven Eltern eine moralische Verantwortung für die Umsetzbarkeit ihrer reproduktiven Freiheit zu? (shrink)

This article examines ancient depictions of the death of Troilus in art and literature and challenges the widespread belief that the Iliad implies an alternative version of the myth in which Troilus dies in battle. In particular, it argues that the death-in-battle interpretation is both insufficiently supported by the internal evidence and incompatible with the external evidence. Given the evident popularity of the story of Achilles’ ambush of Troilus in the Archaic period, it is hard to avoid the conclusion that (...) the poet of the Iliad knew the story of Troilus’ death by ambush. That the poem's only reference to Troilus does not contradict this story, and possibly even alludes to it, should persuade critics of the strong likelihood that the popular story of Troilus’ ambush at the fountain was also the one in the poet's mind. (shrink)

Name der Zeitschrift: Jahrbuch für Wissenschaft und Ethik Jahrgang: 22 Heft: 1 Seiten: 33-64.

Abstract:The dominant interpretation of Zeus' words at Iliad 20.21, which regards μέλουσί μοι ὀλλύμενοί περ as an expression of sympathy for dying warriors, poses a number of serious contextual and lexical problems. This article argues that Il. 20.21 is not an expression of compassion, but attention. Zeus is not concerned for dying warriors, but attentive to them, as indeed his deadly βουλή (Il. 20.20) requires him to be. The interpretation of Il. 20.21 has relevance to questions of great significance for (...) the interpretation of the Iliad, including Zeus' relationship to humans and the meaning of the Διὸς βουλή. (shrink)

Der vorliegende Beitrag nimmt seinen Ausgangspunkt in der Beobachtung zunehmender Verweise auf Menschenbilder oder ein spezielles Menschenbild in öffentlichen und fachwissenschaftlichen Debatten um wissenschaftlichen und technologischen Wandel (1). Zunächst wird ein knapper Überblick über die Bedeutung, Funktion und Herkunft von Menschenbildern gegeben (2), gefolgt von einer Übersicht über die Fragestellungen und Methodik der noch jungen Disziplin einer Ethik der Ernährung (3). Daran anschließend wird der Zusammenhang zwischen lebensweltlichen Menschenbildern und Ernährungsweisen am Beispiel der öffentlichen und wissenschaftlichen Diskurse um Fleischkonsum expliziert (...) (4). Ein knappes Fazit fasst die Ergebnisse zusammen (5). (shrink)

“With great power comes great responsibility.” In today’s world, with our growing technological power and the knowledge about its impact, we are considered to be responsible for many instances that not long ago would have been deemed a matter of fate. At the same time, the looming options of, e.g., genome editing or neuroprosthetics, threaten traditional notions of responsibility if no longer the person but the technology involved is deemed to be responsible for a specific behaviour. The growing ethical debate (...) on the expansion of human responsibility, e.g. when it comes to human-machine-interaction, ambient intelligence, or reproductive technologies, thus intertwines with the challenge to formulate an appropriate understanding of the concept of personal responsibility and our respective anthropological self-understanding in today’s technological world. The volume brings together both perspectives and aims at illuminating crucial dimensions of responsibility in light of technological innovation and our self-understanding as responsible beings. (shrink)

A sense of agency over wilful actions is thought to be dependent on the level of choice and the nature of the outcome. In a preregistered study, we manipulated choice and valence of outcome to assess the relationship between SoA across the depression and psychosis continuum. Participants completed a Libet Clock task, in which they had either a free or forced choice to press one of two buttons and received either a rewarding or punishing outcome. Participants also completed questionnaires on (...) depressive and psychosis-like traits. Rewarding outcomes increased intentional binding. The evidence favoured no effect of choice on average, but this was influenced by inter-individual differences. Individuals reporting more depressive traits had less of a difference in intentional binding between free and forced choice conditions. We show that implicit SoA is sensitive to outcome valence and the effect of choice differs across the depression continuum. (shrink)