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71.
Holger Lyre 《国际科学哲学研究》2008,22(2):119-133
This paper explores the argument structure of the concept of spontaneous symmetry breaking in the electroweak gauge theory of the Standard Model: the so‐called Higgs mechanism. As commonly understood, the Higgs argument is designed to introduce the masses of the gauge bosons by a spontaneous breaking of the gauge symmetry of an additional field, the Higgs field. The technical derivation of the Higgs mechanism, however, consists in a mere reshuffling of degrees of freedom by transforming the Higgs Lagrangian in a gauge‐invariant manner. This already raises serious doubts about the adequacy of the entire manoeuvre. It will be shown that no straightforward ontic interpretation of the Higgs mechanism is tenable, since gauge transformations possess no real instantiations. In addition, the explanatory value of the Higgs argument will be critically examined. 相似文献
72.
Harris (2006) recently proposed a new elemental model of the processes involved in associative learning. Although Harris explicated all relevant mathematical and conceptual details of the model in his article, implementing a computer simulation of his model requires considerable programming expertise and work. We therefore present the Harris model simulator (HMS), a MATLAB simulator of Harris's model. HMS provides a graphical user interface for manipulating all essential parameter values and for controlling the simulation process, the graphical visualization of the simulation course, and the numerical results. HMS is available free of charge from www.staff.uni-marburg.de/(tilde)lachnit/harris/. HMS allows researchers to easily derive and evaluate predictions for the Harris model, and it will therefore facilitate insights into the mechanisms of associative learning. 相似文献
73.
Jan Hofer Holger Busch Iva Poláčková Šolcová Peter Tavel 《Journal of Happiness Studies》2017,18(2):389-407
Reminiscence has various functions, not all of which are beneficial for well-being. In particular, self-negative reminiscence functions—boredom reduction, bitterness revival, and intimacy maintenance—have been shown to be associated with reduced well-being. The present paper examines the link between self-negative reminiscence functions and depression in three cultural contexts. We hypothesize that both variables are indirectly linked via satisfaction of basic psychological needs: Self-negative reminiscing is associated with an impairment of need satisfaction which in turn relates to enhanced depressive symptoms. This hypothesis is tested in elderlies from Cameroon, the Czech Republic, and Germany. A total of 637 elderly participants reported on self-negative reminiscing, need satisfaction, and depressive symptoms. Analyses indicate that for boredom reduction and bitterness revival an indirect effect on depression via decreased need satisfaction can be established in all cultural contexts. For intimacy maintenance, a different picture emerges in that in the Czech and the German sample, there was a direct effect on depression but not an indirect one via need satisfaction. Yet, among Cameroonian participants an indirect effect was found, demonstrating that intimacy maintenance was related to decreased depression via enhanced need satisfaction. These results suggest that reminiscence functions may have partly universal, partly culture-specific effects on well-being. 相似文献
74.
Catherine A. Haden Peter A. Ornstein Holger B. Elischberger Margaret J. Burchinal 《Journal of experimental child psychology》2011,108(1):44-60
A multitask battery tapping nonverbal memory and language skills was used to assess 60 children at 18, 24, and 30 months of age. Analyses focused on the degree to which language, working memory, and deliberate memory skills were linked concurrently to children’s Elicited Imitation task performance and whether the patterns of association varied across the different ages. Language ability emerged as a predictor of immediate Elicited Imitation performance by 24 months of age and predicted delayed performance at each age. In addition to the contributions of language, children’s abilities to search for and retrieve toys in the deliberate memory task were associated with their immediate Elicited Imitation performance at each age. In addition to language, working memory was positively associated with aspects of both immediate and delayed performance at all ages. The extent to which it was possible to replicate and extend previous cross-sectional work in this longitudinal study is discussed. 相似文献
75.
Holger Andreas 《Journal for General Philosophy of Science》2011,42(1):17-31
This paper is concerned with connections between scientific and metaphysical realism. It is not difficult to show that scientific
realism, as expounded by Psillos (1999) clearly qualifies as a kind of metaphysical realism in the sense of Putnam (1980). The statement of scientific realism therefore must not only deal with underdetermination and the dynamics of scientific
theories but also answer the semantic challenges to metaphysical realism. As will be argued, the common core of these challenges
is the proposition that a (metaphysical) realist semantics leads to semantic agnosticism in the sense that we are unable to
grasp the proper meanings and referents of our linguistic expressions. Having established this, I will focus more specifically
on the question of whether scientific realism—in its state-of-the-art account—has the resources to make reference to scientific
concepts intelligible such that the semantic challenges can be answered. 相似文献
76.
Ana-Maria Olteţeanu Holger Schultheis Jonathan B. Dyer 《Behavior research methods》2018,50(5):1971-1980
The Remote Associates Test (RAT) has been used to measure creativity, however few repositories or standardizations of test items exist, like the normative data on 144 items provided by Bowden and Jung-Beeman. comRAT is a computational solver which has been used to solve the compound RAT in linguistic and visual forms, showing correlation to human performance over the normative data provided by Bowden and Jung-Beeman. This paper describes using a variant of comRAT, comRAT-G, to generate and construct a repository of compound RAT items for use in the cognitive psychology and cognitive modeling community. Around 17 million compound Remote Associates Test items are created from nouns alone, aiming to provide control over (i) frequency of occurrence of query items, (ii) answer items, (iii) the probability of coming up with an answer, (iv) keeping one or more query items constant and (v) keeping the answer constant. Queries produced by comRAT-G are evaluated in a study in comparison with queries from the normative dataset of Bowden and Jung-Beeman, showing that comRAT-G queries are similar to the established query set. 相似文献
77.
Vanessa Schmitt Ira Federspiel Johanna Eckert Stefanie Keupp Laura Tschernek Lauriane Faraut Richard Schuster Corinna Michels Holger Sennhenn-Reulen Thomas Bugnyar Thomas Mussweiler Julia Fischer 《Animal cognition》2016,19(2):417-428
Social comparisons are a fundamental characteristic of human behaviour, yet relatively little is known about their evolutionary foundations. Adapting the co-acting paradigm from human research (Seta in J Pers Soc Psychol 42:281–291, 1982. doi: 10.1037//0022-3514.42.2.281), we examined how the performance of a partner influenced subjects’ performance in long-tailed macaques (Macaca fascicularis). Using parallel testing in touch screen setups in which subjects had to discriminate familiar and novel photographs of men and women, we investigated whether accuracy and reaction time were influenced by partner performance and relationship quality (affiliate vs. non-affiliate). Auditory feedback about the alleged performance of the co-actor was provided via playback; partner performance was either moderately or extremely better or worse than subject performance. We predicted that subjects would assimilate to moderately different comparison standards as well as to affiliates and contrast away from extreme standards and non-affiliates. Subjects instantly generalized to novel pictures. While accuracy was not affected by any of the factors, long reaction times occurred more frequently when subjects were tested with a non-affiliate who was performing worse, compared to one who was doing better than them (80 % quantile worse: 5.1, better: 4.3 s). For affiliate co-actors, there was no marked effect (worse: 4.4, better: 4.6 s). In a control condition with no auditory feedback, subjects performed somewhat better in the presence of affiliates (M = 77.8 % correct) compared to non-affiliates (M = 71.1 %), while reaction time was not affected. Apparently, subjects were sensitive to partner identity and performance, yet variation in motivation rather than assimilation and contrast effects may account for the observed effects. 相似文献
78.
79.
Eva Heim Holger Steinmetz Matthew D. Zeigenfuse Andreas Maercker Juergen Margraf 《International journal of psychology》2018,53(5):339-348
This study examined the circular structure of values in China. The circular structure is a central element of Schwartz value theory and visualises the idea that some values are similar while others conflict with one another. Whereas numerous studies addressed the question whether the circular structure of values can be generalised cross‐culturally, results for China are inconclusive. In this paper, we argue that taking a closer look at China provides a challenge to the circular structure and allows for drawing conclusions regarding the limits versus generalizability of Schwartz' theory. For this purpose, we first conduct a re‐analysis of Chinese data from a former meta‐analysis (Study 1) and second, present results from a large study of 10,652 Chinese college students (Study 2). Results of Study 1 revealed that graphical representation of the circular structure matched theoretical expectations but five out of six samples showed relatively bad fit to the theorised structure. By contrast, data in Study 2 showed a good model fit. As an overall conclusion, the circular structure is well supported in the Chinese context, and small sample sizes in previous studies might have caused the imperfect match to the prototypical circular structure. 相似文献
80.
Intentionally remembering or forgetting own- and other-race faces: Evidence from directed forgetting
Simone C. Tüttenberg Holger Wiese 《British journal of psychology (London, England : 1953)》2020,111(3):570-597
People are better at remembering faces of their own relative to another ethnic group. This so-called own-race bias (ORB) has been explained in terms of differential perceptual expertise for own- and other-race faces or, alternatively, as resulting from socio-cognitive factors. To test predictions derived from the latter account, we examined item-method directed forgetting (DF), a paradigm sensitive to an intentional modulation of memory, for faces belonging to different ethnic and social groups. In a series of five experiments, participants during learning received cues following each face to either remember or forget the item, but at test were required to recognize all items irrespective of instruction. In Experiments 1 and 5, Caucasian participants showed DF for own-race faces only while, in Experiment 2, East Asian participants with considerable expertise for Caucasian faces demonstrated DF for own- and other-race faces. Experiments 3 and 4 found clear DF for social in- and outgroup faces. These results suggest that a modulation of face memory by motivational processes is limited to faces with which we have acquired perceptual expertise. Thus, motivation alone is not sufficient to modulate memory for other-race faces and cannot fully explain the ORB. 相似文献