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71.
The problem of Uniqueness and Explicit Definability of Fixed Points for Interpretability Logic is considered. It turns out that Uniqueness is an immediate corollary of a theorem of Smoryski. 相似文献
72.
Subjective magnitude characteristics for vibrotaction were determined by the method of numerical magnitude balance for three body sites varying in the density of neural innervation: the distal pad of the middle finger, the thenar eminence, and the volar forearm. The effects of a rigid surround upon threshold and the rate of growth of subjective intensity were measured. The results support the suggestion that absolute threshold and the rate of growth of subjective intensity are inverse functions of the total number of sensory neural units stimulated rather than being related simply to the density of neural innervation. 相似文献
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Previous research has demonstrated that intragroup respect can strengthen people's commitment to the group and encourage them to exert themselves on behalf of it. In the present research, the authors argue that similar behavior can ensue from self-focused concerns when group members are disrespected. Experiment 1 (N = 174) confirms that high respect as well as low respect motivates people to increase their actual discretionary efforts on behalf of the group. These findings were replicated and extended in Experiment 2 (N = 138), where it was established that enhanced efforts only emerge when people consider the way they are evaluated by others as diagnostic for their position in the group. In addition, it is demonstrated that whereas the efforts of respected people were primarily motivated by affective commitment to the group (group-focused concerns), the behavior of disrespected people was driven by anxiety about their acceptance into the group (self-focused concerns). 相似文献
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Dick DM Viken RJ Kaprio J Pulkkinen L Rose RJ 《Journal of abnormal child psychology》2005,33(2):219-229
Conduct disorder (CD), attention deficit hyperactivity disorder (ADHD), and oppositional defiant disorder (ODD) are common childhood externalizing disorders that frequently co-occur. However, the causes of their comorbidity are not well understood. To address that question, we analyzed data from > 600 Finnish twin pairs, who completed standardized interviews at age 14. Behavior genetic methods were used to examine how genetic/environmental factors contribute to each disorders symptoms and to their covariation. We found significant genetic effects on each disorder with only modest evidence of shared environmental influences. Our data suggest the comorbidity among CD, ADHD, and ODD is primarily explained by shared genetic influences; however, each disorder was also under unique genetic influence, supporting the distinction of each disorder. 相似文献
78.
Daselaar SM Veltman DJ Rombouts SA Raaijmakers JG Jonker C 《Neurobiology of learning and memory》2005,83(3):251-262
In this event-related fMRI study, brain activity patterns were compared in extensive groups of young (N=25) and older (N=38) adults, while they were performing a word stem completion priming task. Based on behavioral findings, we tested the hypothesis that aging affects only the lexical/semantic, but not the perceptual component of word stem priming. To this end, we distinguished between priming-related activity reductions in posterior regions involved in visual processing, and regions associated with lexical/semantic retrieval processes, i.e., left lateral temporal and left prefrontal regions. Both groups revealed significant priming-related response time reductions. However, in accordance with earlier findings, a larger priming effect was found in the group of young participants. In line with previous imaging studies, the groups showed common priming-related activity reductions in the anterior cingulate, and the left inferior prefrontal cortex extending into the anterior portion of the left superior temporal gyrus, and at lower thresholds also in the right occipital lobe. However, when directly comparing the groups, greater priming-related reductions were found for the young group in the left anterior superior temporal gyrus and the right posterior occipital lobe. These findings suggest that, converse to current psychological views, aging affects both perceptual and lexical/semantic components of repetition priming. 相似文献
79.
Eva M. Bracht Lucas Monzani Diana Boer S. Alexander Haslam Rudolf Kerschreiter Jérémy E. Lemoine Niklas K. Steffens Serap Arslan Akfirat Lorenzo Avanzi Bita Barghi Kitty Dumont Charlotte M. Edelmann Olga Epitropaki Katrien Fransen Steffen Giessner Ilka H. Gleibs Roberto González Ana Laguía González Jukka Lipponen Yannis Markovits Fernando Molero Juan A. Moriano Pedro Neves Gábor Orosz Christine Roland-Lévy Sebastian C. Schuh Tomoki Sekiguchi Lynda Jiwen Song Joana S. P. Story Jeroen Stouten Srinivasan Tatachari Daniel Valdenegro Lisanne van Bunderen Viktor Vörös Sut I. Wong Farida Youssef Xin-an Zhang Rolf van Dick 《Psychologie appliquee》2023,72(1):348-388
Innovation is considered essential for today's organizations to survive and thrive. Researchers have also stressed the importance of leadership as a driver of followers' innovative work behavior (FIB). Yet, despite a large amount of research, three areas remain understudied: (a) The relative importance of different forms of leadership for FIB; (b) the mechanisms through which leadership impacts FIB; and (c) the degree to which relationships between leadership and FIB are generalizable across cultures. To address these lacunae, we propose an integrated model connecting four types of positive leadership behaviors, two types of identification (as mediating variables), and FIB. We tested our model in a global data set comprising responses of N = 7,225 participants from 23 countries, grouped into nine cultural clusters. Our results indicate that perceived LMX quality was the strongest relative predictor of FIB. Furthermore, the relationships between both perceived LMX quality and identity leadership with FIB were mediated by social identification. The indirect effect of LMX on FIB via social identification was stable across clusters, whereas the indirect effects of the other forms of leadership on FIB via social identification were stronger in countries high versus low on collectivism. Power distance did not influence the relations. 相似文献
80.
Dick Van Kampen 《欧洲人格杂志》1993,7(2):65-105
In this article a critical evaluation is given of Eysenck's Psychoticism model. It is argued that in this model two sub-models can be distinguished, which, contrary to Eysenck's presentation, cannot be regarded as true extensions of each other. With respect to one of these models, the ?genotypic’? P-model, the theory is criticized in that both schizophrenia and affective psychosis are determined by a common genetic predisposition which can phenotypically manifest itself in variations of P. Instead of this theory, the likelihood is put forward that a high EPQ-P score, albeit in combination with a high N and a low E score (and notwithstanding the fact that criminals or psychopaths can also obtain high P scores), is (only) related to the schizoid state, and hence, that P seems to be relevant either as a predisposing factor contributing to the development of schizophrenic psychosis, or as a factor on which biological relatives of schizophrenics obtain higher scores on average than normals do. In this respect, Eysenck's theory that the non-schizoid form of psychopathy can also be found among first-degree relatives of schizophrenics, and hence, that psychopathy and schizoidia are genetically related, is also criticized. Furthermore, it is argued that Eysenck's EPQ-P scale is not optimal for measuring those traits of the schizoid personality which are independent of N and/or E. Both arguments regarding the contents of this scale and arguments with respect to the demonstrated lack of invariance of the EPQ-P factor are adduced to support this statement. Thus, an alternative scale for measuring ?P’? (labelled S or Insensitivity) was designed by us. The S-scale is based on literature concerning the schizoid state and reflects the results of a series of principal components analyses of (potential) S items, together with N and E items, put into execution with the intention of investigating the invariance of the S factor (and of E and N) with respect to six sample and other parameters. These investigations were carried out on a large, representative sample of the Dutch population. Additional investigations were carried out concerning the reliability and validity of the three newly formed scales. The results of these investigations turned out to be very satisfactory or, in some respects, at least promising. Finally, in this article, comments are made on the nature of the S factor, comparing this dimension with both Eysenck's P factor and the dimensions Agreeableness and Conscientiousness, as proposed, for instance, in McCrae and Costa's version of Nor-man's 5-factor model. As against P, the S or Insensitivity factor seems to be only (negatively) related to Agreeableness and not to Conscientiousness. It is also argued that this finding seems to be in accord with the supposed schizoid nature of S and the criticisms levelled at Eysenck's EPQ-P scale. 相似文献