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161.
On the face of it, normative conflicts are commonplace. Yet standard deontic logic declares them to be logically impossible. That prompts the question, What are the proper principles of normative reasoning if such conflicts are possible? This paper examines several alternatives that have been proposed for a logic of ‘ought’ that can accommodate normative conflicts, and finds all of them unsatisfactory as measured against three criteria of adequacy. It then introduces a new logic that does meet all three criteria, and so allows for the possibility of genuine normative conflicts. 相似文献
162.
This paper presents a neighborhood semantics for logics of entailment. It begins with a minimal system Min that expresses the most fundamental assumptions about the entailment relation, and continues by examining various extensions that reflect further assumptions that might be made about entailment. This leads first to the logic B that is the basic relevant logic, and then to more powerful systems. All of these logics are proved to be sound and strongly complete. With B the neighborhood semantics meets the Routley–Meyer relational semantics for relevant logic; these connections are examined. The minimal and basic entailment logics are shown to have the finite model property, and hence to be decidable. 相似文献
163.
Lombardi CM 《Animal cognition》2008,11(1):67-74
Relational learning, as opposed to perceptual learning, is based on the abstract properties of the stimuli. Although at present
there is no doubt that pigeons are capable of relational behavior, this study aims to further disclose the conditions under
which it occurs. Pigeons were trained in an outdoor cage on a matching-to-sample or an oddity-from-sample task, with colored
cardboard stimuli presented horizontally. The apparatus involved three sliding lids on which the stimuli were drawn and which,
when displaced, revealed the reinforcement. The lids were either adjacent to each other or somewhat separated. Training sessions
involved two colors, and test sessions six different colors (same dimension test), or six different shapes (different dimension
test). One group of birds trained under the ‘adjacent’ condition failed when tested with new stimuli, but succeeded in both
dimension tests after training under the ‘separate’ condition. Two other groups of birds succeeded in all tests after training
under the latter condition. These results show that depending on procedural details, pigeons are or are not able to transfer
from one visual dimension to another, thus extending previous related findings. 相似文献
164.
Lombardi R 《The International journal of psycho-analysis》2008,89(1):89-110
The author focuses on the importance of the body in the analysis of patients with a defect of thinking. In many cases this defect is not fully evident until concrete and bodily aspects begin to emerge in sessions. In the absence of awareness of the body, the patient's personality is deprived of the main source of emotional stimulus, and mental growth is consequently paralysed. Hence the body is considered the starting point of mental processes and a progressive source of experience requiring the exercise of responsibility and thought. To indicate the theoretical background to this essentially clinical paper, some hypotheses about the body-mind link are very briefly considered. Specific emphasis is given to the development of Freud-Klein-Bionian theories about this subject and to some of Ferrari 's recent proposals. The author discusses four clinical cases, emphasizing the encounter with the body in analysis and its integration in emotional and thinking processes. The analyst's function in such cases is conceived mainly as that of midwife for a dialogue between the analysand 's body and mind. 相似文献
165.
Raquel C. Andres-Hyman Alice Forrester Ijeoma Achara-Abrahams Mary Lou Lauricella Michael Rowe 《Journal of community & applied social psychology》2007,17(2):147-158
Youth violence in the United States has emerged as a major concern for communities, policymakers and community researchers. This paper reports on the efforts of a child mental health clinic to build a community consensus around addressing violence that affects youth and all members of the community. We describe and give case examples regarding our approach to acquiring the perspectives of the community, particularly that of youth, discuss key themes and implications that emerged from our work, and offer preliminary recommendations for designing a youth violence prevention initiative in a disenfranchised community. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
166.
Hierarchical Classes Modeling of Rating Data 总被引:2,自引:1,他引:1
Hierarchical classes (HICLAS) models constitute a distinct family of structural models for N-way N-mode data. All members of the family include N simultaneous and linked classifications of the elements of the N modes implied by the data; those classifications are organized in terms of hierarchical, if–then-type relations. Moreover,
the models are accompanied by comprehensive, insightful graphical representations. Up to now, the hierarchical classes family
has been limited to dichotomous or dichotomized data. In the present paper we propose a novel extension of the family to two-way
two-mode rating data (HICLAS-R). The HICLAS-R model preserves the representation of simultaneous and linked classifications
as well as of generalized if–then-type relations, and keeps being accompanied by a comprehensive graphical representation.
It is shown to bear interesting relationships with classical real-valued two-way component analysis and with methods of optimal
scaling.
The research reported in this paper was supported by the Research Fund of the University of Leuven (GOA/00/02 and GOA/05/04)
and by the Fund for Scientific Research-Flanders (project G.0146.06). Eva Ceulemans is a Post-doctoral Researcher supported
by the Fund for Scientific Research, Flanders. The authors gratefully acknowledge the help of Gert Quintiens and Kaatje Bollaerts
in collecting the data used in Section 4 and of Jan Schepers in additional analyses of these data. 相似文献
167.
The role of prior experience in language acquisition 总被引:1,自引:0,他引:1
Learners exposed to an artificial language recognize its abstract structural regularities when instantiated in a novel vocabulary (e.g., Gómez, Gerken, & Schvaneveldt, 2000; Tunney & Altmann, 2001). We asked whether such sensitivity accelerates subsequent learning, and enables acquisition of more complex structure. In Experiment 1, pre-exposure to a category-induction language of the form aX bY sped subsequent learning when the language is instantiated in a different vocabulary. In Experiment 2, while naíve learners did not acquire an acX bcY language, in which aX and bY co-occurrence regularities were separated by a c-element, prior experience with an aX bY language provided some benefit. In Experiment 3 we replicated this finding with a 24-hour delay between learning phases, and controlled for prior experience with the aX bY language's prosodic and phonological characteristics. These findings suggest that learners, and the structure they can acquire, change as a function of experience. 相似文献
168.
Dawson JE Piazza CC Sevin BM Gulotta CS Lerman D Kelley ML 《Journal of applied behavior analysis》2003,36(1):105-108
We used the high-probability (high-p) instructional sequence with and without escape extinction in the treatment of food refusal. Acceptance increased and refusal decreased only with the introduction of escape extinction. These results raise important questions about the high-p sequence in the treatment of food refusal. 相似文献
169.
Lombardi R 《The Psychoanalytic quarterly》2003,72(4):1017-1041
The author presents the analysis of a 23-year-old, obese, psychotic man who was dominated by sensations and unable to work through the different levels of psychic elaboration. He could not discriminate between words and concrete objects or between the perceptual functions of sense organs and the oral-cannibalistic level of instinct. Following the working through of these inabilities, it became possible to understand the patient's use of sensation and to make him aware of his emotions and conflicts. The author's discussion of this material emphasizes the role of the body-mind conflict and how this can be confronted in the analytic relationship. Possible links with neuroscience are also indicated. 相似文献
170.
The purpose of this study was to compare language function in children undergoing temporal or frontal lobe surgery to control intractable epilepsy. Language measures (expressive vocabulary, receptive vocabulary, comprehension, reading, spelling, phonemic fluency, and category fluency) were administered to 9 children with frontal lobe epilepsy (mean age: 10.8 +/- 2.7 years) and 10 children with temporal lobe epilepsy (11.5 +/- 2.6 years). The results indicate that no differences exist, in language function, before and after surgery between children with frontal and temporal lobe epilepsy (all p > or = .05). Children with left hemisphere lesions had significantly lower scores than those with right on category fluency and comprehension, but laterality effects were not seen on the other measures. In both groups, language function was not significantly affected by surgery. 相似文献