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This work has two goals, the first one is to study in detail the conceptual structure of some natural and artifactual categories, by using multidimensional scaling (MDS). According to our theoretical approximation, conceptual structure is composed of semantic features, and these features have different entities and nature. As an index of relevance in mental representation of semantic categories, we took the frequency of production of semantic features on a free verbal production task. Our second goal was to compare the structure of conceptual representations in two populations, healthy elderly and Alzheimer's disease (AD) patients, assuming that conceptual representation is impaired in this last population. We assume that the impairment in the conceptual representations of AD patients will show, when the disease reaches a determined level, loosing specific features. This impairment will have serious consequences in the whole conceptual structure. 相似文献
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González Gutiérrez JL Peñacoba Puente C Moreno Rodríguez R López López A Velasco Furlong L 《The Spanish journal of psychology》2006,9(1):103-112
This paper presents the Nursing Motives for Helping Scale (N-MHS), an instrument designed for the evaluation of three of the four motives for helping derived from Batson's helping pathway theory. Dimensionality was analyzed by means of principal component analysis (n = 113), followed by confirmatory factor analysis. A 3-factor structure (corresponding to Batson's differentiation among altruistic motivation, reward-seeking motivation, and punishment-avoidance motivation, respectively), with 9 items distributed in three latent variables, revealed an acceptable fit to the data. Alpha values (.60 - .74) showed that internal consistency was acceptable for a newly developed subscale with a small number of items. Convergence validity was evaluated with correlations between N-MHS subscales scores and scores on the Professional Expectations Scale (Garrosa, Moreno-Jiménez, Rodríguez-Carvajal, and Morante, 2005). The three resulting subscales are a promising instrument for the evaluation of three nursing motives for helping that can contribute to reduce the potential risks and to improve the potential benefits both for the nurse and the patient. 相似文献
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Paolo Mancosu 《Synthese》1991,88(1):15-41
In this paper I show that proofs by contradiction were a serious problem in seventeenth century mathematics and philosophy. Their status was put into question and positive mathematical developments emerged from such reflections. I analyse how mathematics, logic, and epistemology are intertwined in the issue at hand. The mathematical part describes Cavalieri's and Guldin's mathematical programmes of providing a development of parts of geometry free of proofs by contradiction. The logical part shows how the traditional Aristotelean doctrine that perfect demonstrations are causal demonstrations influenced the reflection on proofs by contradiction. The main protagonist of this part is Wallis. Finally, I analyse some epistemological developments arising from the Cartesian tradition. In particular, I look at Arnauld's programme of providing an epistemologically motivated reformulation of Geometry free of proofs by contradiction. The conclusion explains in which sense these epistemological reflections can be compared with those informing contemporary intuitionism. 相似文献
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Nathaly Moreno 《The American journal of family therapy》2018,46(2):107-121
This study examines (1) how previous history with infidelity influences perceptions of cheating behaviors, and (2) sex's impact on ratings of cheating behaviors. A total of 83 undergraduate students enrolled in psychology courses volunteered to participate through an anonymous online survey. Participants rated sexual and emotional behaviors on a scale that ranged from “always” to “never,” indicating if the behavior was perceived as cheating. Individuals that had previous experience with infidelity either as the involved or non-involved partner rated sexual behaviors higher than those with no experience with infidelity, while non-involved partners rated emotional behaviors higher than the rest. Overall, females rated sexual and emotional behaviors higher than males. Non-involved males rated sexual behaviors higher than non-involved female partners. However, males who have not committed an infidelity rated sexual behaviors lower than any other group. The results provide further evidence that perceptions of cheating behaviors are influenced by gender and one's own history of infidelity, including both involved and non-involved roles. 相似文献
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P. Michelle Seewald Shannon Y. De Jesus Lisa V. Graves Charles C. Moreno Sarah N. Mattson 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2018,25(3):319-332
We developed a new test to examine incidental temporal order memory for a self-generated sequence of tasks one might complete in everyday life. Young and older adults were given 10 cards, each listing a task one might accomplish in a typical day. Participants were asked to self-generate a “to do” list by placing the 10 cards in a sequence representing the order in which they would accomplish the tasks, but were not informed of a subsequent memory test. We assessed immediate free recall, delayed free recall, and delayed cued recall for the order of the tasks in the sequence. Older adults were significantly impaired relative to young adults on immediate free recall, delayed free recall, and delayed cued recall. Correlation analyses with standardized neuropsychological tests provide preliminary evidence for construct validity for our test, which is portable and can be rapidly administered in clinical or laboratory settings. 相似文献