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41.
There have been a number of publications in recent years on generalising the AGM paradigm to the Horn fragment of propositional logic. Most of them focused on adapting AGM contraction and revision to the Horn setting. It remains an open question whether the adapted Horn contraction and Horn revision are inter-definable as in the AGM case through the Levi and Harper identities. In this paper, we give a positive answer by providing methods for generating contraction and revision from their dual operations. Noticeably, we cannot apply the Levi and Harper identities directly in such methods as the Horn fragment does not fully support negation. To overcome this difficulty, a Horn approximation technique called Horn strengthening is used. We show that Horn contraction generated from Horn revision is always plausible whereas Horn revision generated from Horn contraction is, in general, implausible and, to regain plausibility, the generating contraction has to be properly restricted. 相似文献
42.
Individuals with Autism Spectrum Disorder (ASD) often present with comorbid Obsessive Compulsive Behaviors (OCBs), but little research exists on effective intervention for OCBs. Using a single-case experimental design, this study highlights the efficacy of a Group Functional Behavior-based Cognitive-Behavior Therapy (Fb-CBT) to reduce OCBs in an 11-year-old youth with ASD. Tailored to the individual needs of this youth, Fb-CBT included traditional CBT components (e.g., psychoeducation, cognitive-behavioral skills training, and exposure and response prevention) coupled with functional behavior assessment and intervention. Time-series parent report data and standardized measures showed clinically significant decreases in OCBs, an increase in psychosocial functioning, and high consumer satisfaction. 相似文献
43.
44.
Maurice Topper Paul M.G. Emmelkamp Thomas Ehring 《Applied and Preventive Psychology》2010,14(1-4):57-71
Prevention of depression and anxiety disorders is widely acknowledged as an important health care investment. However, existing preventive interventions have only shown modest effects. In order to improve the efficacy of prevention of depression and anxiety disorders, a number of authors have suggested that it is promising to focus on selective prevention programs that are offered to individuals scoring high on clearly established risk factors, whereby the preventive intervention then specifically targets these risk variables. This review presents repetitive negative thinking (worry and rumination) as a promising target for the prevention of depression and anxiety disorders. 相似文献
45.
Theories of choice in economics typically assume that interacting agents act individualistically and maximize their own utility. Specifically, game theory proposes that rational players should defect in one-shot prisoners' dilemmas (PD). Defection also appears to be the inevitable outcome for agents who learn by reinforcement of past choices, because whatever the other player does, defection leads to greater reinforcement on each trial. In a computer simulation and 4 experiments, the authors show that, apparently paradoxically, when players' choices are correlated by an exogenous factor (here, the cooperativeness of the specific PD chosen), people obtain greater average reinforcement for cooperating, which can sustain cooperation. This effect arises from a well-known statistical paradox, Simpson's paradox. The authors speculate that this effect may be relevant to aspects of real-world human cooperative behavior. 相似文献
46.
Corcos M Loas G Speranza M Perez-Diaz F Stephan P Verrier A Lang F Nezelof S Bizouard P Venisse JL Jeammet P 《Psychological reports》2008,102(2):435-449
Many common risk factors have been described in addictive disorders. Little is known about factors' respective contributions to discrimination of addicted and nonaddicted participants. Two large samples were compared including 513 nonpsychiatric participants and 374 addicted participants meeting the DSM-IV criteria for eating disorders, alcohol, or substance dependence. Twenty-six risk factors were assessed by interview or self-rating scales. A discriminant analysis determined the respective weight of each risk factor. One discriminant function emerged and characterized a depressive dimension. The results suggest that the different risk factors described in addiction could be related to a depressive dimension. 相似文献
47.
Eric A. Storch Tanya K. Murphy Rhea M. Chase Mary Keeley Wayne K. Goodman Maurice Murray Gary R. Geffken 《Journal of psychopathology and behavioral assessment》2007,29(4):211-219
The present study analyzed rates of peer victimization in children with a chronic tic disorder as compared to children with
type 1 diabetes and healthy controls. The associations among peer victimization, tic symptom severity, and psychological symptoms,
as well as the potential mediating relationship between peer victimization, tic severity, and child internalizing symptoms,
were also explored. Children with tics displayed higher rates of peer victimization than control groups, and peer victimization
in children with tics was positively correlated with tic symptom severity, loneliness, anxiety symptoms, and parent report
of child internalizing symptoms. Results also supported the hypothesis that peer victimization mediates the relationship between
tic symptom severity and loneliness. Findings highlight the importance of the assessment and treatment of psychosocial variables
in children with chronic tic disorders, including social functioning and peer relationships. 相似文献
48.
Martin P Baenziger J Macdonald M Siegler IC Poon LW 《Journal of Adult Development》2009,16(4):199-208
This study assessed engaged lifestyle activities (e.g., volunteering, traveling, and public speaking) for centenarians of
the Georgia Centenarian Study. A total of 285 centenarians and near-centenarians (i.e., 98 years and older) and their proxy
informants participated in this study. The Mini-Mental Status Examination (MMSE) was assessed for all centenarians, and proxy
informants reported on lifestyle activities and personality traits of the centenarians. Results suggested that participants
who had volunteered, traveled, and those who had given public talks and balanced their checkbooks were more likely to show
relatively high mental status scores (i.e., MMSE > 17). Personality traits were found to be moderators in the relationship
between engaged lifestyle and mental status: Participants with high levels of Emotional Stability, Extraversion, Openness,
and Conscientiousness and with high levels of engaged lifestyle were more likely to show relatively high mental status scores
(i.e., MMSE > 17), whereas participants with low levels of Emotional Stability, Extraversion, Openness, Agreeableness, and
Conscientiousness and with low levels of engaged lifestyle were more likely to show relatively low mental status scores (i.e.,
MMSE < 18). The results suggest that engaged lifestyle, particularly in combination with personality traits, plays an important
role in the level of cognitive functioning among oldest old adults. 相似文献
49.
Maurice K. D. Schouten 《Zygon》2001,36(4):679-708
Recently, some philosophers of religion have suggested that a reduction of the classical image of humanity may jeopardize classical theism. To obstruct reductionism, some theologians have argued for dualism on the basis of the argument of consciousness. In this essay, I argue that even consciousness must be considered a brain-based phenomenon. This does not commit one to reductionism, however. Nonreductive physicalism appears to offer a promising alternative to either dualism or reductionism, without necessarily compromising more traditional views of humanity. I do suggest that a modification of the classical image of God may be inevitable. 相似文献
50.