The cost of seeing the meaning: Conceptual processing of distractors triggers localized target suppression

It is often assumed that conceptual information impacts visual experience only after perceptual information has been extracted. However, the present study suggests that conceptual processing can interfere with perceptual processes, as reflected in target perception impairments that are specific to the location of conceptually salient distractors. Experiment 1 replicated previous findings that emotional distractors in a rapid serial visual presentation cause a spontaneous, spatially localized impairment in target perception, further finding that distractors that are merely featurally salient do not. Experiment 2 suggested that conceptually salient distractors that are non-emotional also elicit such spatially localized impairments, which are shorter lived than those following emotional distractors. Experiment 3 suggested that featurally salient distractors that are not conceptually salient engage a different, spatial attention mechanism. Together, these findings suggest that, whereas featurally salient distractors can capture spatial attention, conceptual distractors additionally engage mechanisms that suppress spatiotemporally competing targets.     

BLOCKING THE PATH FROM VAGUENESS TO FOUR DIMENSIONALISM*

There is a general form of an argument which I call the ‘argument from vagueness’ which attempts to show that objects persist by perduring, via the claim that vagueness is never ontological in nature and thus that composition is unrestricted. I argue that even if we grant that vagueness is always the result of semantic indeterminacy rather than ontological vagueness, and thus also grant that composition is unrestricted, it does not follow that objects persist by perduring. Unrestricted mereological composition lacks the power to ensure that there exist instantaneous objects that wholly overlap persisting objects at times, and thus lacks the power to ensure that there exists anything that could be called a temporal part. Even if we grant that such instantaneous objects exist, however, I argue that it does not follow that objects perdure. To show this I briefly outline a coherent version of three dimensionalism that grants just such an assumption. Thus considerations pertaining to the nature of vagueness need not lead us inevitably to accept perdurantism.     

Engaged in Engagement: We Are Delighted We Did It

We emphasize that science and practice issues are equally salient when pursuing thinking and research on employee engagement. We agree with much of what the commentaries have to say, especially that organizational competitive advantage is the relevant focus of engagement research and practice and that engagement is not a new construct but one that required clarification vis-a-vis existing constructs. We also agree that state engagement can be highly variable, that disengagement needs study, that negative situations can induce engagement behaviors, that engagement surveys should yield actionable data, and that people can be hired who are more likely to be engaged. We disagree with the idea that all employee attitudes are essentially equal and that existing conceptualizations of performance make engagement behavior a nonuseful construct.     

Persons and Substances

I have argued elsewhere that the psychological criterion of personalidentity entails that a person is not an object, but a series ofpsychological events. As this is somewhat counter-intuitive,I consider whether the psychological theorist can argue that a person, while not a substance, exists in a way that is akin to theway that substances exist. I develop ten criteria that such a`quasi-substance' should meet, and I argue that a reasonablecase can be made to show that the psychological theorist's conception of a person meets these criteria.     

Religions and Conflicts

Many believe that a peaceful, tolerant and respectful coexistence among religions is not compatible with the conviction that only one of them is true. I argue that this ‘incompatibility problem’ (IP) is grounded in a ‘naturalistic assumption’ (NA), that is, the assumption that every subject, including religion, should be treated without taking into account that a super-natural being may exist and reveal to us an unexpected way to deal with our experience. I then argue that in matters of religion, NA is untenable and that its very opposite, which I call ‘super-naturalistic assumption’ (SA), should be adopted. My thesis is that, once SA is adopted, IP can be dismissed and that it is plausible to maintain that a peaceful, tolerant and respectful coexistence among religions is compatible with the conviction that only one of them is true.     

Possible knowledge of unknown truth

Fitch’s argument purports to show that for any unknown truth, p, there is an unknowable truth, namely, that p is true and unknown; for a contradiction follows from the assumption that it is possible to know that p is true and unknown. In earlier work I argued that there is a sense in which it is possible to know that p is true and unknown, from a counterfactual perspective; that is, there can be possible, non-actual knowledge, of the actual situation, that in that situation, p is true and unknown. Here I further elaborate that claim and respond to objections by Williamson, who argued that there cannot be non-trivial knowledge of this kind. I give conditions which suffice for such non-trivial counterfactual knowledge.     

Regularity as a Form of Constraint

Regularity theories of causation are guided by the idea that causes are collectively sufficient for their effects. Following Mackie [1974], that idea is typically refined to distinguish collections that include redundant members from those that do not. Causes must be collectively sufficient for their effects without redundancy. While Mackie was surely right that the regularity theory must distinguish collections that are in some sense minimally sufficient for an effect from those that include unnecessary hangers-on, I believe that redundancy is the wrong mark of that distinction. I propose a way to develop the regularity theory without it. Instead of distinguishing minimal from mere sufficiency in terms of redundancy, we should look to the influence that events have in the world. Causes, so construed, must have just enough collective influence to ensure that an effect occurs. I argue that such an account provides a uniform solution to the problem of epiphenomena and to a pair of related problems that arise for prior iterations of the regularity theory.     

Does Conceivability Entail Metaphysical Possibility?

In this paper, we argue that ‘Weak Modal Rationalism’, which is the view that ideal primary positive conceivability entails primary metaphysical possibility, is self‐defeating. To this end, we outline two reductio arguments against ‘Weak Modal Rationalism’. The first reductio shows that, from supposing that ‘Weak Modal Rationalism’ is true, it follows that conceivability both is and is not conclusive evidence for possibility. The second reductio shows that, from supposing that ‘Weak Modal Rationalism’ is true, it follows that it is possible that ‘Weak Modal Rationalism’ is necessarily false, and hence that ‘Weak Modal Rationalism’ is false. We then argue that adopting a weaker position according to which conceivability is merely prima facie evidence for possibility provides limited protection from our criticism of conceivability arguments. 1     

Why the Wrongness of Killing Innocents is Not a Universal Moral Certainty

In this paper, I argue that the certainty about the wrongness of killing must not be considered as a universal, but as a local one. Initially, I show that there exist communities in which the wrongness of killing innocents is not a moral certainty and that this kind of case cannot be justified by arguing that such people are psychopaths. Lastly, I argue that universal certainties do not admit of exceptions: thus, the fact that some exceptional cases affect the certainty that killing innocents is wrong, leads me to conclude that it is a local certainty.     

Transhumanism and Roman Catholicism: Imagined and Real Tensions

Abstract

Transhumanists have asserted that religious people would both oppose life extension and allowing people with extended lives to die. In this paper, coming from a Roman Catholic perspective, I refute four myths associated with these claims: that the Church materially opposes life extension, that it conceptually opposes the very idea of life extension, that it opposes human genetic manipulation, and that it opposes letting people die in hospitals. I then propose that there are four real tensions that are much more significant: that material immortality is highly improbable, that injustice and inequality are major concerns, that transhuman omnipotence is impossible, and that utopianism is extremely dangerous.     

Horwich on meaning and use

Paul Horwich claims that theories of meaning ought to accommodate the commonsense intuition that meanings play a part in explaining the use of words. Further, he argues that the view that best does so is that according to which the meaning of a word is constituted by a disposition to accept, in some circumstances, sentences in which it features. I argue that if meanings are construed thus, they will in fact fail to explain the use of words. I also argue that if we insist, as Horwich does, on the commonsense assumption that meanings are a species of entity, all versions of the view that meaning is constituted by our dispositions to use words will have to be rejected. I do not, however, claim that such theories ought to be rejected. My point is that they are incompatible with the requirements of commonsense. Further, I suggest that it is premature to impose such requirements on theories of meaning.     

Philosophy and Science Dialogue: Mental Causation

This paper is a dialogue between Thalia Wheatley and Terence Horgan. Horgan maintains that philosophy is a broadly empirical discipline, and that philosophical theorizing about how concepts work treats certain intuitions about proper concept-usage as empirical data. He holds that the possibility of strong multiple realizability undermines the psychophysical identity theory. He holds that the concept of causation is governed by implicit contextual parameters, and that this dissolves Kim’s problem of “causal exclusion.” He holds that the concept of free will is governed by implicit contextual parameters, and that free-will attributions are often true, in typical contexts, even if determinism is true. Thalia Wheatley holds that the concept of multiple realizability hinges on the level of abstraction discussed and that neuroscientific data does not yet support multiple realizability of mental states from specific, high resolution brain states. She also holds that compatibilism redefines the concept of free will in ways that bear little resemblance to the common understanding―that of being free to choose otherwise in the moment. She maintains that this folk understanding is incompatible with the brain as a physical system and is not rescued by concepts of context and capacity.     

A Refutation of Cartesian Fallibilism

According to a doctrine that I call “Cartesianism”, knowledge – at least the sort of knowledge that inquirers possess – requires having a reason for belief that is reflectively accessible as such. I show that Cartesianism, in conjunction with some plausible and widely accepted principles, entails the negation of a popular version of Fallibilism. I then defend the resulting Cartesian Infallibilist position against popular objections. My conclusion is that if Cartesianism is true, then Descartes was right about this much: for S to know that p, S must have reasons for believing that p which are such that S can know, by reflection alone, that she has those reasons, and that she could not possibly have those reasons if p is not true. Where Descartes went wrong was in thinking that our ordinary, fallible, non‐theologically grounded sources of belief (e.g., perception, memory, testimony), cannot provide us with such reasons.     

On the Morality of Having Faith that God Exists

Many theists who identify themselves with the Abrahamic religions (Christianity, Judaism, and Islam) maintain that it is perfectly acceptable to have faith that God exists. In this paper, I argue that, when believing that God exists will affect others, it is prima facie wrong to forgo attempting to believe that God exists on the basis of sufficient evidence. Lest there be any confusion: I do not argue that it is always wrong to have faith that God exists, only that, under certain conditions, it can be.     

Opacity,Transparency, and the Paradox of the Accessibility Requirement

Key issues in epistemology for the most part have to do with epistemic values such as justification, truth, and knowledge—that is, values related to the epistemic status of our propositional attitudes, mental events, and states. However, another important issue that is worth examining is the extent to which a subject is in a position to evaluate the strength of her epistemic position. In this paper, I wish to emphasize two properties of our mental states that play a decisive part in that respect: their opacity and transparency. In the following, I will assume that a mental state is opaque whenever it presents itself with no underlying reason, whereas states that are supported by apparent reasons are transparent. One main argument that I will defend is that even when the opacity and transparency of our mental states are not reliable cues, still they remain highly informative. Notably, I draw some implications relative to the externalist/internalist debate in epistemology. I examine the claim that only mental states that are justified are well grounded or justification conferring and the idea that often stands behind, that is, that only states whose reasons are accessible are justified—namely, the Accessibility Requirement. I also examine the source of a recent debate in epistemology: the epistemic status of our intuitive states, as these are perfect instances of opaque mental states. I conclude that intuitive states in some respect are less misleading than states that are supported by apparent reasons.     

The what–where trade-off in multiple-identity tracking

Observers are poor at reporting the identities of objects that they have successfully tracked (Pylyshyn, Visual Cognition, 11, 801-822, 2004; Scholl & Pylyshyn, Cognitive Psychology, 38, 259-290, 1999). Consequently, it has been claimed that objects are tracked in a manner that does not encode their identities (Pylyshyn, 2004). Here, we present evidence that disputes this claim. In a series of experiments, we show that attempting to track the identities of objects can decrease an observer's ability to track the objects' locations. This indicates that the mechanisms that track, respectively, the locations and identities of objects draw upon a common resource. Furthermore, we show that this common resource can be voluntarily distributed between the two mechanisms. This is clear evidence that the location- and identity-tracking mechanisms are not entirely dissociable.     

The Standard Meter by Any Name is Still a Meter Long

In §50 of Philosophical Investigations Wittgenstein wrote the sentence, "There is one thing of which one can say neither that it is one metre long, nor that it is not one metre long, and that is the standard metre in Paris." Although some interpreters have claimed that Wittgenstein's statement is mistaken, while others have proposed various explanations showing that this must be correct, none have questioned the fact that he intended to assert that it is impossible to describe the standard meter as being a meter long. Given that Wittgenstein introduces this sentence as analogous to the claim that "existence cannot be attributed to an element," and that the preceding passages discuss a language-game the simples of which can be described by their own names, there is good reason to think that Wittgenstein did not intend to assert this infamous sentence.     

1996-2004年中国大陆儒学研究的新进展

1996-2004年,中国大陆的孔子、儒学研究持续繁荣发展,在以下八个方面上,取得了新的进展: (1)儒学与世界和平; ( 2 )儒家人文精神; ( 3 )简帛儒家文献; ( 4 )儒学宗教性问题; (5)儒学与生态伦理; (6)儒学与普世伦理; (7)儒学与文化保守主义; (8)儒学与自由主义; (9)儒学与民主、人权; (10)儒学与全球化。