Once More into the Breach of Self-Ownership: Reply to Narveson and Brenkert

In reply to Narveson, I distinguish his no-proviso argument from his liberty argument, and I show that both fail. I also argue that interference lacks the strategic status he assigns to it, because it cannot be appropriately distinguished, conceptually and morally, from prevention; that natural resources do enjoy the importance he denies they have; that laissez-faire economies lack the superiority he attributes to them; that ownership can indeed be a reflexive relation; that anti-paternalism does not entail libertarianism; and that he misrepresents the doctrines of a number of philosophers, including John Locke, Ronald Dworkin, and myself. In reply to Brenkert, I show that he seriously misconstrues my view of the nature of freedom, and of its relationship to self-ownership. I then refute his criticisms of my treatment of the contrasts between self-ownership, on the one hand, and autonomy and non-slavery, on the other. I also show that his attempt to exorcize the demon of self-ownership is multiply flawed.     

Comparison of yes-no and latency measures of auditory intensity discrimination.

Rats discriminated auditory intensity differences of sinusoids at 3.0 kilohertz in a go/no-go signal detection procedure. Responses to the signal (hits) were reinforced with electrical brain stimulation, and misses produced a brief timeout. On intermixed noise trials, withholding of responses (correct rejections) was reinforced, and false alarms produced the time-out. In two test conditions, the signal was either the louder (100 decibels) or softer (90, 93, 96, or 99 decibels) of the pair of intensities presented within a set of trials. Each animal was first trained with signal value louder or softer, and reversed for the second condition so that the former noise value served as signal. Hits showed shorter latencies than false alarms, regardless of the relative intensity of signal and noise, and the magnitude of differentiation was proportional to signal-noise separation. Both hits and false alarms showed longer latencies as the discrimination became more difficult. Isosensitivity contours derived from the latencies showed close similarity across conditions; in comparison, the yes-no measure of detectability, d', showed greater variability. The similarity of latency differentiation across louder and softer signal conditions supports a detection model in which the observer's judgment is controlled by the distance of sensory effect from criterion on each trial, as opposed to the loudness of the tones per se.     

RIGHTS AND RESPONSIBILITIES ON THE HOME PLANET

Abstract. Earth is the home planet, right for life. But rights, a notable political category, is, unfortunately, a biologically awkward word. Humans, nonetheless, have rights to a natural environment with integrity. Humans have responsibilities to respect values in fauna and flora. Appropriate survival units include species populations and ecosystems. Increasingly the ultimate survival unit isglobal; and humans have a responsibility to the planet Earth. Human political systems are not well suited to protect life atglobal ranges. National boundaries ignore important ecologicalprocesses; national policies do not favor an equitable distribution of sustainable resources. But there are signs of hope.     

Civic engagement and the possibility of the political

During the last half a century, civil rights movements have been led by people of faith even as they have marched in different directions. Some spoke out for the status quo while others demanded a different vision of justice, some for peace and others for war, for a violence-free life for women and against it. The issues and partisans shift, particularly as the relationship between state and church, faith and politics, has varied from one country to the next. Participation is dangerous, but even more so are inaction, withdrawal, obedience. This issue of Dialog takes another look at the history, philosophy, and practice of Christians.     

Social Representations of Human Rights Amongst Czech University Students

The Universal Declaration of Human Rights is a general legislative framework for democratic societies. Studying the social representations of these basic human rights helps to explain how people understand and assess the basic rights and how these rights relate to everyday life. Over 400 Czech university students rated the 30 articles of the Declaration of Human Rights on various scales (degree of understanding, personal relevance, consequences for individual responsibility, for government, political parties, etc.). A semantic space was identified in which concepts (i.e. the Articles of the Declaration) could be located. A typology (clusters) of articles was then established within that semantic space. A factor analysis of the scales resulted in a two-dimensional solution (‘positive attitude’ and ‘personal influence’). Five clusters of assessed articles were identified within this semantic space. (© 1997 by John Wiley & Sons, Ltd.)     

Right-Based Morality and Hohfeld's Relations

The paper begins by defending the Hohfeldianaccount of rights (as equivalence relations) from thecharge that it cannot capture their specialsignificance, and thus cannot be used in a right-basedmoral theory. It goes on to argue that, because of amisunderstanding of this relational account, theconception of right-based morality that has emerged inrecent years has been variously flawed from theoutset. A particular form of explanatory priority waswrongly taken to be essential, and then eitherincoherently combined with equivalence, or taken to bea reason for rejecting equivalence where right-basedthinking is concerned. In fact, this form of priorityis not sufficient for establishing a right-based moraltheory. It is also not necessary, since theHohfeldian analysis can be shown to be entirelyadequate to meeting the original aims of thoseproposing this approach to ethics.     

In Defense of the Jurisdiction Theory of Rights

This essay critically examines three theories of moral rights, theBenefit, the Interest, and the Choice theories. The Interest andChoice theories attempt to explain how rights can be more robustthan seems possible on the Benefit theory. In particular, moralrights are supposed to be resistant to trade-offs to supportprincipled anti-paternalism, to constitute a distinct dimensionof morality, and to provide right holders with a range ofdiscretionary choice. I argue that these and other featuresare better yet provided by a fourth theory of moral rights, theJurisdiction theory.     

The International Significance of Human Rights

A comparative examination of four alternative ways of understandingwhat human rights are supports an institutional understanding assuggested by Article 28 of the Universal Declaration: Human rightsare weighty moral claims on any coercively imposed institutionalorder, national or international (as Article 28 confirms). Any suchorder must afford the persons on whom it is imposed secure accessto the objects of their human rights. This understanding of humanrights is broadly sharable across cultures and narrows the philosophical and practical differences between the friends ofcivil and political and the champions of social, economic, andcultural human rights. When applied to the global institutionalorder, it provides a new argument for conceiving human rights asuniversal – and a new basis for criticizing this order as tooencouraging of oppression, corruption, and poverty in the developing countries: We have a negative duty not to cooperatein the imposition of this global order if feasible reforms ofit would significantly improve the realization of human rights.     

时距知觉的动物研究范式及相关神经机制

在探索时距知觉的脑机制的过程中, 相对于人类被试相关研究, 动物研究可以提供较多的药理学、分子生物学、单个神经元电生理学以及光遗传等方面的研究证据。目前较为常用的时距知觉动物研究范式包括时间二分法、峰值间隔法以及低比率差别强化法等。根据不同的研究需求, 动物研究的范式常会进行调整。对时距知觉的动物研究的探讨将基于两方面展开：(1) 常用的时距知觉动物研究范式的介绍及比较; (2) 基于动物研究范式的时距知觉神经机制研究进展, 旨在为深入探索时间知觉的心理学相关研究提供参考。     

Development of animal recognition: a difference between Parts and Wholes

A series of experiments examined children's recognition of animals by their features (Parts) and by the relative scale of the parts (Wholes). They were asked to identify the correct picture of an animal they could name from the original plus two computer-generated alternatives. We examined the developmental trends associated with upright (Studies 1 and 3) and inverted presentations (Study 3). Both experiments confirmed children's superior ability in dealing with the recognition of animal Parts over animal Wholes, especially for the younger ages tested (6- and 10-year-olds). It was not until the ages of 15-16 that children demonstrated equal performance on Whole and Part items. The late acquisition of animal Whole recognition is compared to the late acquired configural skills proposed for face recognition.