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1.
The perceived intensity and quality of binary odor mixtures are studied in relation to bow their components are perceived when presented separately. Subjects judged the perceived intensity and quality of 6 concentrations of pyridine, 6 concentrations ofn-butanol, and their 36 possible combinations. The results show that the perceived intensity of the mixture can be predicted from the perceived intensity of its components presented separately (R A andR B) by the Euclidian arithmetic model. The maximum probability of identifying a mixture as a “mixture” is reached whenR A andR B are equally strong. An interaction model for mixtures that relates perceived intensity and quality is presented and tested. The test reveals that both the perceived intensity of a mixture and the probability that it will be identified as the one or the other component can, by a simple interaction model, be successfully predicted fromR A andR B.  相似文献   

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Ming Xu 《Studia Logica》1994,53(2):259-298
The purpose of this paper is to prove the decidability ofstit theory (a logic of “seeing to it that”) with a single agent andRefref Equivalence. This result is obtained through an axiomatization of the theory and a proof that it has thefinite model property. A notion ofcompanions to stit formulas is introduced and extensively used in the proof.  相似文献   

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We extend the language of the classical syllogisms with the sentence-forms “At most 1 p is a q” and “More than 1 p is a q”. We show that the resulting logic does not admit a finite set of syllogism-like rules whose associated derivation relation is sound and complete, even when reductio ad absurdum is allowed.  相似文献   

6.
In connection with a least-squares solution for fitting one matrix,A, to another,B, under optimal choice of a rigid motion and a dilation, Schönemann and Carroll suggested two measures of fit: a raw measure,e, and a refined similarity measure,e s , which is symmetric. Both measures share the weakness of depending upon the norm of the target matrix,B,e.g.,e(A,kB) ≠e(A,B) fork ≠ 1. Therefore, both measures are useless for answering questions of the type: “DoesA fitB better thanA fitsC?”. In this note two new measures of fit are suggested which do not depend upon the norms ofA andB, which are (0, 1)-bounded, and which, therefore, provide meaningful answers for comparative analyses.  相似文献   

7.
《Visual cognition》2013,21(2):157-199
Scene recognition across a perspective change typically exhibits viewpoint dependence. Accordingly, the more the orientation of the test viewpoint departs from that of the study viewpoint, the more time its takes and the less accurate observers are to recognize the spatial layout. Three experiments show that observers can take advantage of a virtual avatar that specifies their future “embodied” perspective on the visual scene. This “out-of-body” priming reduces or even abolishes viewpoint dependence for detecting a change in an object location when the environment is respectively unknown or familiar to the observer. Viewpoint dependence occurs when both the priming and primed viewpoints do not match. Changes to permanent extended structures (such as walls) or altered object-to-object spatial relations across viewpoint change are detrimental to viewpoint priming. A neurocognitive model describes the coordination of “out-of-body” and “embodied” perspectives relevant to social perception when understanding what another individual sees.  相似文献   

8.
In this paper, we give an algebraic completeness theorem for constructive logic with strong negation in terms of finite rough set-based Nelson algebras determined by quasiorders. We show how for a quasiorder R, its rough set-based Nelson algebra can be obtained by applying Sendlewski’s well-known construction. We prove that if the set of all R-closed elements, which may be viewed as the set of completely defined objects, is cofinal, then the rough set-based Nelson algebra determined by the quasiorder R forms an effective lattice, that is, an algebraic model of the logic E 0, which is characterised by a modal operator grasping the notion of “to be classically valid”. We present a necessary and sufficient condition under which a Nelson algebra is isomorphic to a rough set-based effective lattice determined by a quasiorder.  相似文献   

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Abstract

The author examines different definitions and applications of the terms “psychic energy” and “libido.” With regard to the “psychic energy” terminology, he shows that its application and usage relate in particular to the perspective of Brenner and not to Freud's definition. He argues that Freud uses the term “psychic energy” as a synonym for “libido,” and not “libido” as a synonym for “psychic energy.” It is demonstrated that in Freud's view, up until 1914, “libido” relates to manifestations of bodily sexual tensions, and subsequently this term applies to the manifestations of sexual energy in the psychic field. The author rejects this change in terminology and also challenges Freud's attempt to use dynamic-economic considerations as an explanatory device for epistemological reasons. Freud's concept of energy is inconsistent with the meaning of energy as defined in the physical sciences, and whereas the metapsychological topographical, dynamic, and structural viewpoints have a solid foundation in the representational world to which the psychoanalytic process affords unique access, this is not true of the economic viewpoint. It is claimed that bodily tensions only exist in the representational world in the form of affects, so that, in the author's opinion, the economic viewpoint should be abandoned in favour of an affective one. In the context of the endeavour to obtain pleasure and avoid unpleasure adduced by Freud, this viewpoint focuses on the relationships between affects and the different elements of the representational world, thereby serving as the subject of metapsychological investigation.  相似文献   

10.
Suppose we have a number representation of a semiorder 〈A, P〉 such that aPb iff f(a)+δ(a) < f(b), for all a, bA, where δ is a nonnegative function describing the variable jnd. Such an f (here called a closed representation) may not preserve the simple order relation R1 generated by 〈A, P〉, i.e., aR1b but f(a) > f(b) for some f, δ and a, bA. We show that this “paradox” can be eliminated for closed and closed interval representations. For interval representations it appears to be impossible. That is why we introduce a new type of representation (an R-representation) which is of the most general form for number representations that preserve the linear structure of the represented semiorders. The necessary and sufficient condition for an R-representation is given. We also give some independent results on the semiorder structure. Theorems are proved for semiorders of arbitrary cardinality. The Axiom of Choice is used in the proofs.  相似文献   

11.
Both I and Belnap, motivated the “Belnap-Dunn 4-valued Logic” by talk of the reasoner being simply “told true” (T), and simply “told false” (F), which leaves the options of being neither “told true” nor “told false” (N), and being both “told true” and “told false” (B). Belnap motivated these notions by consideration of unstructured databases that allow for negative information as well as positive information (even when they conflict). We now experience this on a daily basis with the Web. But the 4-valued logic is deductive in nature, and its matrix is discrete: there are just four values. In this paper I investigate embedding the 4-valued logic into a context of probability. Jøsang’s Subjective Logic introduced uncertainty to allow for degrees of belief, disbelief, and uncertainty. We extend this so as to allow for two kinds of uncertainty—that in which the reasoner has too little information (ignorance) and that in which the reasoner has too much information (conflicted). Jøsang’s “Opinion Triangle” becomes an “Opinion Tetrahedron” and the 4-values can be seen as its vertices. I make/prove various observations concerning the relation of non-classical “probability” to non-classical logic.  相似文献   

12.
I. C. Baianu 《Axiomathes》2006,16(1-2):25-34
Complex Systems Biology approaches are here considered from the viewpoint of Robert Rosen’s (M,R)-systems, Relational Biology and Quantum theory, as well as from the standpoint of computer modeling. Realizability and Entailment of (M,R)-systems are two key aspects that relate the abstract, mathematical world of organizational structure introduced by Rosen to the various physicochemical structures of complex biological systems. Their importance for understanding biological function and life itself, as well as for designing new strategies for treating diseases such as cancers, is pointed out. The roles played by multiple metastable states in the “continuous uphill flow of Life” supported through internal bioenergetic processes that are coupled to essential inflows are also discussed in relation to dynamic realizations of (M,R)-systems. Furthermore, the roles played by the underlying, many-valued, quantum logics and symbolic computations for ultra-complex biological systems are also briefly discussed.  相似文献   

13.
This paper assesses the implications of Grünbaum's critique of Freud's “science”; for a discussion of the relation between theory and practice in psychoanalytically oriented psychotherapy. Guided by the work of the French sociologist, Bourdieu, it places Grünbaum's argument within a logic of intellectualism—a framework that tends to instrumentalize reason and romanticize practice, delineating the well‐known territories of objectivism and subjectivism. Grünbaum's arguments within this logic are taken to be rhetorical maneuvers—such as valorizing the tally argument and then debunking it—aimed at rejuvenating an objectivistic approach to theory and practice. Grünbaum is successful insofar as much of the debate generated by his views accepts the terms of his intellectualist bias. It is suggested, however, that these are terms that have long been suspect; that, indeed, it was Freud who helped bring them into question; and that there is a broader framework of discourse that relativizes intellectualism within a dialectical opposition to “participationism.”; A form of rationality founded in a nonconceptual knowledge of practice has begun to emerge within this more inclusive discourse under such rubrics as “social constructivist”; and “relational”; approaches to psychotherapy. It is argued that within the therapy situation a kind of “practical reason”; can mitigate the controlling, instrumental authority of intellectualism as well as the collusive, sentimental servility of participationism.

[T]he theoretician's claim to an absolute viewpoint, the “perspec‐tiveless view of all perspectives”; as Leibnitz would have put it, contains the claim to a power, founded in reason, over particular individuals, who are condemned to error by the partisan partiality of their individual viewpoints [Bourdieu, 1990, pp. 28–29]1 lThe work of sociologist Pierre Bourdieu (1977, 1990; Bourdieu and Wacquant, 1992) focuses on a scientific study of human interaction that is cognizant of the pitfalls of the conflicting poles within intellectualism of “objectivism”; and “subjectivism"—both of which are rejected. and redefined relative to the recognition of a distinct “logic of practice.”; I hope that the perceived significance of this work to the understanding of psychoanalytic practice will justify my extensive use of quotations.   相似文献   

14.
The current study analyzes the evolution of language used to discuss marriage equality in The New York Times between February and May 2004 and February and May 2012. Specifically, the study examines how sexual orientation labels were used as modifiers for “marriage,” “couples,” and “individuals.” Results indicate that the language evolved from a focus on the sexual orientation label gay in 2004 to a more inclusive language, with same-sex as the predominant modifier for marriage and couples in 2012. Further, while the overall language in The New York Times became more inclusive of the Lesbian, Gay, Bisexual, and Transgender community at large, bisexual women and men are still largely absent within the marriage equality discourse.  相似文献   

15.
We show that the actuality operator A is redundant in any propositional modal logic characterized by a class of Kripke models (respectively, neighborhood models). Specifically, we prove that for every formula ${\phi}$ in the propositional modal language with A, there is a formula ${\psi}$ not containing A such that ${\phi}$ and ${\psi}$ are materially equivalent at the actual world in every Kripke model (respectively, neighborhood model). Inspection of the proofs leads to corresponding proof-theoretic results concerning the eliminability of the actuality operator in the actuality extension of any normal propositional modal logic and of any “classical” modal logic. As an application, we provide an alternative proof of a result of Williamson’s to the effect that the compound operator A□ behaves, in any normal logic between T and S5, like the simple necessity operator □ in S5.  相似文献   

16.
Successful object recognition is essential for finding food, identifying kin, and avoiding danger, as well as many other adaptive behaviors. To accomplish this feat, the visual system must reconstruct 3-D interpretations from 2-D “snapshots” falling on the retina. Theories of recognition address this process by focusing on the question of how object representations are encoded with respect to viewpoint. Although empirical evidence has been equivocal on this question, a growing body of surprising results, including those obtained in the experiments presented in this case study, indicates that recognition is often viewpoint dependent. Such findings reveal a prominent role for viewpointdependent mechanisms and provide support for themultiple-views approach, in which objects are encoded as a set of view-specific representations that are matched to percepts using normalization procedures.  相似文献   

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Since the terms of the health policy debate in the United States and Canada are largely supplied by biomedicine, the current “crisis” in health care is, in part, a product of biomedical rhetoric. In this essay, three metaphors widely identified as being associated with biomedicine—the body is a machine, medicine is war,and medicine is a business—are examined with a view to the ways in which they influence the health policy debate, not only with respect to outcomes, but also with respect to what can be argued at all. The essay proposes that biomedical language itself be foregrounded as the constitutive material of public discourse on health policy.  相似文献   

19.
思维与语言的关系:来自认知神经科学的证据   总被引:1,自引:0,他引:1  
在有关人类心智的研究中,思维与语言的关系始终是一个复杂而重要的课题。借助于新的技术手段和研究思路,当代认知神经科学从新的角度探讨了这个古老而神秘的课题。其研究的基本逻辑是:如果某种特定的思维过程(比如简单的算术运算或者三段论推理)在本质上是“语言的”,那么,在进行这种思维活动时,大脑中负责语言信息处理的区域就会参与;反之,如果某种思维过程在本质上是“空间的”,则大脑中负责空间信息处理的区域就会参与其中。结合来自直观的脑功能图谱证据与其它的跨领域证据(如来自行为实验和脑损伤研究的证据),能够帮助我们更加深入地认识和理解思维与语言的关系问题。  相似文献   

20.
On each of five days the subject of this experiment read aloud different material during an 18-min A1 (base rate), B (experimental), and A2 (extinction) period. No stimulation was delivered during the first three days. On the fourth day, the nonsense word “norg” was presented noncontingently during the experimental period. There was no statistically significant difference between the A1 and B periods on any of these four days. On day five, “wrong” was made contingent on Factor I prolongations during the experimental period. As a result, there was a statistically significant increase in their frequency. When the response consequence was removed in the A2 priod, there was a reliable reduction in prolongations and the frequency closely approximated that found in the A1 period. These data suggest that response-contingent negative stimulation is contraindicated as a clinical tactic for use with Factor I prolongations. It not only failed to suppress them, it increased their frequency.  相似文献   

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