Clinical and experimental evidence suggests that hippocampal damage causes more severe disruption of episodic memories if those memories were encoded in the recent rather than the more distant past. This decrease in sensitivity to damage over time might reflect the formation of multiple traces within the hippocampus itself, or the formation of additional associative links in entorhinal and association cortices. Physiological evidence also supports a two-stage model of the encoding process in which the initial encoding occurs during active waking and (...) deeper consolidation occurs via the formation of additional memory traces during quiet waking or slow-wave sleep. In this article I will describe the changes in cholinergic tone within the hippocampus in different stages of the sleep-wake cycle and will propose that these changes modulate different stages of memory formation. In particular, I will suggest that the high levels of acetylcholine that are present during active waking might set the appropriate dynamics for encoding new information in the hippocampus, by partially suppressing excitatory feedback connections and so facilitating encoding without interference from previously stored information. By contrast, the lower levels of acetylcholine that are present during quiet waking and slow-wave sleep might release this suppression and thereby allow a stronger spread of activity within the hippocampus itself and from the hippocampus to the entorhinal cortex, thus facilitating the process of consolidation of separate memory traces. (shrink)

In her review of my book How we remember: Brain mechanisms of episodic memory, Sarah Robins highlights my example of the problem of interference between memories accessed by content-addressable memory. However, she points out the difficulty of solving this problem with index-addressable representations such as time cells or arc length cells. Namely, the index-addressable memory requires knowing the unique index in advance in order to perform effective retrieval. This is a difficult problem, but should be solvable by forming bi-directional associations (...) between an index-addressable sequence of time cells and an array of content-addressable features in the environment. (shrink)

Radical ecology typically brings to mind media images of ecological activists standing before loggers' saws, staging anti-nuclear marches, and confronting polluters on the high seas. Yet for more than twenty years, the activities of organizations such as the Greens and Earth First! have been influenced by a diverse, less-publicized group of radical ecological philosophers. It is their work—the philosophical underpinnings of the radical ecological movement—that is the subject of _Contesting Earth's Future_. The book offers a much-needed, balanced appraisal of radical (...) ecology's principles, goals, and limitations. Michael Zimmerman critically examines the movement's three major branches—deep ecology, social ecology, and ecofeminism. He also situates radical ecology within the complex cultural and political terrain of the late twentieth century, showing its relation to Martin Heidegger's anti-technological thought, 1960s counterculturalism, and contemporary theories of poststructuralism and postmodernity. An early and influential ecological thinker, Zimmerman is uniquely qualified to provide a broad overview of radical environmentalism and delineate its various schools of thought. He clearly describes their defining arguments and internecine disputes, among them the charge that deep ecology is an anti-modern, proto-fascist ideology. Reflecting both the movement's promise and its dangers, this book is essential reading for all those concerned with the worldwide ecological crisis. (shrink)

You can sometimes have and be moved by desires which you in some sense disown. The problem is whether we can make sense of these ideas of---as I will say---ownership and rejection of a desire, without appeal to a little person in the head who is looking on at the workings of her desires and giving the nod to some but not to others. Frankfurt's proposed solution to this problem, sketched in his 1971 article, has come to be called the (...) hierarchical model. Indeed, it seems that, normally, if an agent's relevant higher-order attitudes are not to some extent shaped by her evaluative reflections and judgments her agency will be flawed. But this suggests a Platonic challenge to the hierarchical account of ownership. The challenge is to explain why we should not see such evaluative judgments---rather than broadly Frankfurtian higher-order attitudes---as the fundamental basis of ownership or rejection of desire. I do think that a systematic absence of connection between higher-order Frankfurtian attitude and evaluative judgment would be a breakdown in proper functioning. But I want to explain how we can grant this point and still block the Platonic challenge. (shrink)

We are purposive agents; but we—adult humans in a broadly modern world—are more than that. We are reflective about our motivation. We form prior plans and policies that organize our activity over time. And we see ourselves as agents who persist over time and who begin, develop, and then complete temporally extended activities and projects. Any reasonably complete theory of human action will need in some way to advert to this trio of features—to our reflectiveness, our planfulness, and our conception (...) of our agency as temporally extended. These are, further, features that have great significance for the kinds of lives we can live. For these two reasons I will say that these are among the core features of human agency. A theory of human action needs to say what these core features consist in and how they are related to each other. And such a theory needs also to clarify the relation between these core features of our agency and the possibility that we are fully embedded in an event causal order. (shrink)

Minimizing the costs that others impose upon oneself and upon those in whom one has a fitness stake, such as kin and allies, is a key adaptive problem for many organisms. Our ancestors regularly faced such adaptive problems (including homicide, bodily harm, theft, mate poaching, cuckoldry, reputational damage, sexual aggression, and the infliction of these costs on one's offspring, mates, coalition partners, or friends). One solution to this problem is to impose retaliatory costs on an aggressor so that the aggressor (...) and other observers will lower their estimates of the net benefits to be gained from exploiting the retaliator in the future. We posit that humans have an evolved cognitive system that implements this strategy – deterrence – which we conceptualize as a revenge system. The revenge system produces a second adaptive problem: losing downstream gains from the individual on whom retaliatory costs have been imposed. We posit, consequently, a subsidiary computational system designed to restore particular relationships after cost-imposing interactions by inhibiting revenge and motivating behaviors that signal benevolence for the harmdoer. The operation of these systems depends on estimating the risk of future exploitation by the harmdoer and the expected future value of the relationship with the harmdoer. We review empirical evidence regarding the operation of these systems, discuss the causes of cultural and individual differences in their outputs, and sketch their computational architecture. (shrink)

From the philosopher’s perspective, the interest in quantum computation stems primarily from the way that it combines fundamental concepts from two distinct sciences: Physics, in particular Quantum Mechanics, and Computer Science, each long a subject of philosophical speculation and analysis in its own right. Quantum computing combines both of these more traditional areas of inquiry into one wholly new, if not quite independent, science. Over the course of this chapter we will be discussing some of the most important philosophical questions (...) that arise from this merger and philosophical lessons to be learned. (shrink)

Controversy and activism have long been linked to the subject of primate research. Even in the midst of raging ethical debates surrounding fertility treatments, genetically modified foods and stem-cell research, there has been no reduction in the campaigns of activists worldwide. Plying their trade of intimidation aimed at ending biomedical experimentation in all animals, they have succeeded in creating an environment where research institutions, often painted as guilty until proven innocent, have avoided addressing the issue for fear of becoming targets. (...) One area of intense debate is the use of primates in stroke research. Despite the fact that stroke kills more people each year than AIDS and malaria, and less than 5% of patients are candidates for current therapies, there is significant opposition to primate stroke research. A balanced examination of the ethics of primate stroke research is thus of broad interest to all areas of biomedical research. (shrink)

Daniel, Michael E Review of: Saints, sacrilege and sedition: Religion and conflict in the Tudor reformations, by Eamon Duffy, pp. 253, paperback, $27.99.

The doctrine of double effect has a firm, respected position within Roman Catholic medical ethics. Neil M. Gorsuch, a judge on the U.S. Court of Appeals for the Tenth Circuit, believes that this doctrine also enjoys a central place within U.S. law. This essay examines and assesses Gorsuch’s thesis. National Catholic Bioethics Quarterly 11.1 (Spring 2011): 31–40.

As computating technologies become ubiquitous and at least partly autonomous, they will have increasing impact on societies, both in the developed and developing worlds. This article outlines a framework for guiding emerging technologies in directions that promise social as well as technical progress. Multiple stakeholders will have to be engaged in dialogues over new technological directions, forming trading zones in which knowledge and resources are exchanged. Such discussions will have to incorporate cultural and individual values.

This book challenges the dominant approach to problems of justice in global normative theory and offers a radical alternative designed to transform our thinking about what kind of problem injustice is and how political theorists might do better in understanding and addressing it. It argues that the dominant approach, ideal moral theory (IMT), takes a fundamentally wrong-headed approach to the problem of justice. IMT seeks to work out what an ideally just society would look like, and only then outlines our (...) moral obligations in realizing that ideal. In other words, it ignores the realities of everyday politics. As Michael Goodhart asserts, IMT postpones engagement with actually existing injustices and distorts our understanding of them, and it normalizes many problematic features of our world. On the other hand, the leading alternatives to IMT struggle to make sense of the role values play in politics. This book sees justice as an ideology and develops an innovative bifocal theoretical framework for making sense of it. This framework provides two complementary perspectives on justice: a theoretical perspective that situates competing ideological claims about justice in a broader political context and a partisan perspective that evaluates the structure and coherence of particular conceptions of justice. As opposed to IMT, it focuses on barriers to justice and advocates an activist political theory that takes sides in political struggles against injustice. Goodhart argues that theorists can help to generate the countervailing power necessary for social transformation through the work of articulation, translation, and mapping, work which contributes to a more comprehensive social science of injustice. (shrink)

Daniel, Michael E Review of: My door is always open: A conversation on faith, hope and the church in a time of change, by Pope Francis with Antonio Spadaro, trans. Shaun Whiteside, London: Bloomsbury, 2014, pp. 172, $30.00.

I argue against the currently popular view that a radical change in theory affects the meaning of theoretical terms, and hence render pre- and post-shift theories incomparable. I first show how to pose the meaning-change issue without appeal to meanings reified. I contend that arguments against theory-neutral observation languages are faulty, but that even if they were sound, there are semantic devices that allow a theory to refer to the factual basis of a competitor. This suggests a picture of science (...) as the accumulation of truths, with each successive stage being more stable. (shrink)

In autonomous action the agent herself directs and governs the action. But what is it for the agent herself to direct and to govern? One theme in a series of articles by Harry G. Frankfurt is that we can make progress in answering this question by appeal to higher-order conative attitudes. Frankfurt's original version of this idea is that in acting of one's own free will, one is not acting simply because one desires so to act. Rather, it is also (...) true that this desire motivates one's action because one desires that this desire motivate one's action. This latter desire about the motivational role of one's desire is a second-order desire. It is, in particular, what Frankfurt calls a second-order “volition.” And, according to Frankfurt's original proposal, acting of one's own free will involves in this way such second-order, and sometimes yet higher order, volitions. (shrink)

In a series of three experiments, we explored the nature of implicit representations in change blindness . Using 3 × 3 letter arrays, we asked subjects to locate changes in paired arrays separated by 80 ms ISIs, in which one, two or three letters of a row in the second array changed. In one testing version, a tone followed the second array, signaling a row for partial report . In the other version, no PR was required. After Ss reported whether (...) a change had been detected and the PR had been completed , they were asked to identify a degraded letter trigram that was either novel, or from a previously shown row . Our findings indicate that when CB occurs, both the pre-change and post-change stimulus information primes despite its unavailability to consciousness. Surprisingly, findings also indicate that when change detection occurs only the post-change information primes. (shrink)

I consider two inter-related problems in the philosophy of action. One concerns the role of the agent in the determination of action, and I call it the problem of agential authority. The other concerns the relation between motivating desire and the agent's normative deliberation, and I call it the problem of subjective normative authority. In part by way of discussion of work of Harry Frankfurt and Christine Korsgaard, I argue that we make progress with these problems by appeal to certain (...) kinds of higher-order policies and to their role in the cross-temporal organization of the deliberation and action of temporally persisting agents like us. (shrink)

The learning of immediate causation within a dynamic environment was examined. Participants encountered seven decision points in which they needed to choose which of three possible candidates was the cause of explosions in the environment. Each candidate was firing a weapon at random every few seconds, but only one of them produced an immediate effect. Some participants showed little learning, but most demonstrated increases in accuracy across time. On average, men showed higher accuracy and shorter latencies that were not explained (...) by differences in self-reported prior video game experience. This result suggests that prior reports of sex differences in causal choice in the game are not specific to situations involving delayed or probabilistic causal relations. (shrink)

Our planning agency contributes to our lives in fundamental ways. Prior partial plans settle practical questions about the future. They thereby pose problems of means, filter solutions to those problems, and guide action. This plan-infused background frames our practical thinking in ways that cohere with our resource limits and help organize our lives, both over time and socially. And these forms of practical thinking involve guidance by norms of plan rationality, including norms of plan consistency, means-end coherence, and stability over (...) time.But why are these norms of rationality? Would these norms be stable under a planning agent's reflection? I try to answer these questions in a way that responds to a skeptical challenge. While I highlight pragmatic reasons for being a planning agent, these need to be supplemented fully to explain the force of these norms in the particular case. I argue that the needed further rationale appeals to the idea that these norms track certain conditions of a planning agent's self-governance, both at a time and over time. With respect to diachronic plan rationality, this approach leads to a modest plan conservatism. (shrink)

I argue that 'c' occurs extensionally in 'c caused e' and 'D' occurs extensionally in 'c caused e because c is D'. I claim that this has been insufficiently appreciated because the two contexts are often run together and because it has not been clear that the description D of c is among the referents of an explanatory argument. I argue as well that Hume's analysis of causation is consistent with taking causation to be a relation between single events, and (...) that even if events are eliminated as virtual entities, extensionality holds for all terms in the resulting context. (shrink)

The Strange Situation procedure was developed by Ainsworth two decades agoas a means of assessing the security of infant-parent attachment. Users of the procedureclaim that it provides a way of determining whether the infant has developed species-appropriate adaptive behavior as a result of rearing in an evolutionary appropriate context, characterized by a sensitively responsive parent. Only when the parent behaves in the sensitive, species-appropriate fashion is the baby said to behave in the adaptive or secure fashion. Furthermore, when infants are (...) observed repeatedly in the Strange Situation,the pattern of behavior is said to be highly similar, and this pattern is said to predict the infants' future behavior in a diverse array of contexts. After an exhaustive review of the literature, it is shown that these popular claims are empirically unsupported in their strong form, and that the interpretations in terms of biological adaptationare misguided. There is little reliable evidence about the specific dimensions of parental behavior that affect Strange Situation behavior, although there does appear to be some relationship between these constructs. Temporal stability in security of attachment ishigh only when there is stability in family and caretaking circumstances. Likewise, patterns of Strange Situation behavior only have substantial predictive validity in similarly stable families. Implications for future research and theorizing — particularly as they relate to the use of evolutionary biology in psychological theory — are discussed. (shrink)

ABSTRACT:Despite sustained attention to ethical leadership in organizations, scholarship remains largely descriptive. This study employs an empirical approach to examine the consequences of ethical leadership on leader promotability. From a sample of ninety-six managers from two independent organizations, we found that ethical leaders were increasingly likely to be rated by their superior as exhibiting potential to reach senior leadership positions. However, leaders who displayed increased ethical leadership were no more likely to be viewed as promotable in the near-term compared to (...) those who displayed less ethical leadership. Our findings also show ethical culture and pressure to achieve results are important contextual factors that moderate the relationships between ethical leadership and leader promotability to senior leadership roles. (shrink)

Many philosophers believe that the faculty of introspection, and the subjective states revealed in introspection, present difficulties to materialism. This paper argues that introspection can be construed physicalistically, and that the states introspected need not be imbued with phenomenally self-revealing qualities. The central argument is that introspected states are identified in terms of the external circumstances in which they occur. It is also argued that this broadly behaviorist perspective can be reconciled with the occurrence of ineffable experiences, and that it (...) presents difficulties for the construal of pleasure offered by classical utilitarianism. (shrink)

We examined the relationship between leader behavioral integrity and leader behavioral courage using data from two studies. Results from Study 1, an online experiment, indicated that behavioral manifestations of leader behavioral integrity and situational adversity both have direct main effects on behavioral manifestations of leader courage. Results from Study 2, a multisource field study with practicing executives, indicated that leader behavioral courage fully mediates the effects of leader behavioral integrity on leader performance and leader executive image. Implications of these findings (...) and future directions are discussed. (shrink)

Physical theories often characterize their observables with real number precision. Many non-fundamental theories do so needlessly: they are more precise than they need to be to capture the physical matters of fact about their observables. A natural expectation is that a truly fundamental theory will require its full precision in order to exhaustively capture all of the fundamental physical matters of fact. I argue against this expectation and I show that we do not have good reason to expect that the (...) standard of precision set by successful theories, or even by a truly fundamental theory, will match the granularity of the physical facts. (shrink)