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71.
Inspired by Barsalou’s (Journal of Experimental Psychology: Learning, Memory, and Cognition, 11, 629–654, 1985) proposal that categories can be represented by ideals, we develop and test a computational model, the ideal dimension model
(IDM). The IDM is tested in its account of the typicality gradient for 11 superordinate natural language concepts and, using
Bayesian model evaluation, contrasted with a standard exemplar model and a central prototype model. The IDM is found to capture
typicality better than do the exemplar model and the central tendency prototype model, in terms of both goodness of fit and
generalizability. The present findings challenge the dominant view that exemplar representations are most successful and present
compelling evidence that superordinate natural language categories can be represented using an abstract summary, in the form
of ideal representations. Supplemental appendices for this article can be downloaded from . 相似文献
72.
We examined measurement invariance and age-related robustness of a short 15-item Big Five Inventory (BFI-S) of personality dimensions, which is well suited for applications in large-scale multidisciplinary surveys. The BFI-S was assessed in three different interviewing conditions: computer-assisted or paper-assisted face-to-face interviewing, computer-assisted telephone interviewing, and a self-administered questionnaire. Randomized probability samples from a large-scale German panel survey and a related probability telephone study were used in order to test method effects on self-report measures of personality characteristics across early, middle, and late adulthood. Exploratory structural equation modeling was used in order to test for measurement invariance of the five-factor model of personality trait domains across different assessment methods. For the short inventory, findings suggest strong robustness of self-report measures of personality dimensions among young and middle-aged adults. In old age, telephone interviewing was associated with greater distortions in reliable personality assessment. It is concluded that the greater mental workload of telephone interviewing limits the reliability of self-report personality assessment. Face-to-face surveys and self-administrated questionnaire completion are clearly better suited than phone surveys when personality traits in age-heterogeneous samples are assessed. 相似文献
73.
Mathematical models of cognition often contain unknown parameters whose values are estimated from the data. A question that
generally receives little attention is how informative such estimates are. In a maximum likelihood framework, standard errors
provide a measure of informativeness. Here, a standard error is interpreted as the standard deviation of the distribution
of parameter estimates over multiple samples. A drawback to this interpretation is that the assumptions that are required
for the maximum likelihood framework are very difficult to test and are not always met. However, at least in the cognitive
science community, it appears to be not well known that standard error calculation also yields interpretable intervals outside
the typical maximum likelihood framework. We describe and motivate this procedure and, in combination with graphical methods,
apply it to two recent models of categorization: ALCOVE (Kruschke, 1992) and the exemplar-based random walk model (Nosofsky
& Palmeri, 1997). The applications reveal aspects of these models that were not hitherto known and bring a mix of bad and
good news concerning estimation of these models. 相似文献
74.
In this article, we derive a nonparametric prediction from decision-bound theory (DBT). The crucial aspect that is tested is whether or not familiarity of a stimulus affects response time in categorization. We show that, for our design, DBT, extended with some reasonable and testable assumptions, predicts no familiarity effect. Our prediction is nonparametric in that, rather than fit a specific instantiation of general DBT, we posit only some general assumptions of this theory and derive the prediction from these assumptions. It is found that familiarity did have a strong impact on response time for at least half of our participants. We suggest that DBT is in itself incomplete and should be extended to account for the full range of available data. 相似文献
75.
Fossella JA Sommer T Fan J Pfaff D Posner MI 《Mental retardation and developmental disabilities research reviews》2003,9(3):178-183
In humans, changes in brain structure and function can be measured non-invasively during postnatal development. In animals, advanced optical imaging measures can track the formation of synapses during learning and behavior. With the recent progress in these technologies, it is appropriate to begin to assess how the physiological processes of synapse, circuit, and neural network formation relate to the process of cognitive development. Of particular interest is the development of executive function, which develops more gradually in humans. One approach that has shown promise is molecular genetics. The completion of the human genome project and the human genome diversity project make it straightforward to ask whether variation in a particular gene correlates with variation in behavior, brain structure, brain activity, or all of the above. Strategies that unify the wealth of biochemical knowledge pertaining to synapse formation with the functional measures of brain structure and activity may lead to new insights in developmental cognitive psychology. 相似文献
76.
Gert J.J. Biesta 《Studies in Philosophy and Education》1999,18(4):203-220
This article addresses the question how educational theory can overcome the assumptions of the tradition of the philosophy of consciousness, a tradition which can be seen as the foundation of the modern project of education. While twentieth century philosophy has seen several attempts to make a shift from consciousness to intersubjectivity (Dewey, Wittgenstein, Habermas) it is argued that this shift still remains within the humanistic tradition of modern thought in that it still tries to define, still tries to develop a theory about the human subject. Foucault's thesis of the end of man is interpreted as an attempt to move beyond humanism, an attempt motivated by a sincere concern for the humanity of the subject. Starting from the question as to who comes after the subject, several answers to this question, which all share an interest in the question as to where the subject comes into presence, are discussed (referring to the writings of Tschumi, Arendt and Levinas). In the concluding section it is argued that one way to move beyond the humanistic tradition of modern thought is to conceive of the subject in terms of responsibility and ethics (Levinas) and to conceive of the very task of theory in terms of justice, and not in terms of truth. This, so it is argued, should be the final concern for educational theory and curriculum theory. 相似文献
77.
78.
Hemispheric dominance in schizophrenics as determined on extrapyramidal side effects of neuroleptics
B Peth? P Taríska K Pintér E Sommer 《Psychiatrie, Neurologie, und medizinische Psychologie》1978,30(1):23-27
Phenomena observed during treatment with neuroleptics were clinically measured in an attempt to determine the difference in vulnerability of the two hemispheres and the relation between this difference and schizophrenic diseases. In the group of systematic schizophrenias the increase in tonus was significantly higher in the dominant hemisphere. This finding is considered a verification of the nosological hypothesis of schizophrenias. 相似文献
79.
This study examines Bandura's (1986, 1997a) propositions that self-efficacy provides information from which causal attributions are made and that causal attributions, in turn, influence formation of subsequent self-efficacy expectations. We developed a conceptual rationale for and empirically tested 2 sets of hypotheses pertaining to direct and reciprocal links between self-efficacy and causal attributions. Effects of causal attributions and subsequently formed self-efficacy on subsequent task performance were also investigated. Results support the existence of direct and reciprocal links between self-efficacy and causal attributions. We found interactive effects between self-efficacy and performance feedback on causal attributions, and a mediating effect of causal attributions on the formation of subsequent self-efficacy beliefs. Causal attributions and subsequent self-efficacy also significantly predicted subsequent performance. 相似文献
80.
Active social communication is an effective way for infants to learn about the world. Do pre‐verbal and pre‐pointing infants seek epistemic information from their social partners when motivated to obtain information they cannot discover independently? The present study investigated whether 12‐month‐olds (N = 30) selectively seek information from knowledgeable adults in situations of referential uncertainty. In a live experiment, infants were introduced to two unfamiliar adults, an Informant (reliably labeling objects) and a Non‐Informant (equally socially engaging, but ignorant about object labels). At test, infants were asked to make an impossible choice—locate a novel referent among two novel objects. When facing epistemic uncertainty—but not at other phases of the procedure—infants selectively referred to the Informant rather than the Non‐Informant. These results show that pre‐verbal infants use social referencing to actively and selectively seek information from social partners as part of their interrogative communicative toolkit. A video abstract of this article can be viewed at https://youtu.be/23dLPsa-fAY 相似文献