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101.
Thomas Meyer Tom Smeets Timo Giesbrecht Conny W. E. M. Quaedflieg Marta M. Girardelli Georgina R. N. Mackay Harald Merckelbach 《Cognitive, affective & behavioral neuroscience》2013,13(1):186-196
The dual-representation model of posttraumatic stress disorder (PTSD; Brewin, Gregory, Lipton, & Burgess, Psychological Review, 117, 210-232 2010) argues that intrusions occur when people fail to construct context-based representations during adverse experiences. The present study tested a specific prediction flowing from this model. In particular, we investigated whether the efficiency of temporal-lobe-based spatial configuration learning would account for individual differences in intrusive experiences and physiological reactivity in the laboratory. Participants (N = 82) completed the contextual cuing paradigm, which assesses spatial configuration learning that is believed to depend on associative encoding in the parahippocampus. They were then shown a trauma film. Afterward, startle responses were quantified during presentation of trauma reminder pictures versus unrelated neutral and emotional pictures. PTSD symptoms were recorded in the week following participation. Better configuration learning performance was associated with fewer perceptual intrusions, r = ?.33, p < .01, but was unrelated to physiological responses to trauma reminder images (ps > .46) and had no direct effect on intrusion-related distress and overall PTSD symptoms, rs > ?.12, ps > .29. However, configuration learning performance tended to be associated with reduced physiological responses to unrelated negative images, r = ?.20, p = .07. Thus, while spatial configuration learning appears to be unrelated to affective responding to trauma reminders, our overall findings support the idea that the context-based memory system helps to reduce intrusions. 相似文献
102.
Visual search for some motion-form conjunctions can be performed in parallel. Yet, if the target is easy to discriminate from the nontargets (target line tilted 45 from the vertical), search can be easier for a moving than for a stationary target. Driver and McLeod (1992; Berger & McLeod, 1996) took this asymmetry to argue that gross aspects of form discrimination are performed within a motion filter thatrepresents only the moving items, whereas discrimination of stationary items (and all fine discrimination) relies on a static form system. However, recent (unsuccessful) attempts to replicate the asymmetry (Muller & Found, 1996; Muller & Maxwell, 1994) suggested that it may occur only early during task performance, due to participants having difficulty keeping the moving items out of the search for a stationary target (but not vice versa). This was confirmed by the present study, which investigated the effects of practice on search among the moving and stationary subset of items. The results suggest that attention to the stationary subsetis difficultinitially because participants cannotefficiently compensate for the natural bias of the motion filter to pass the moving items (rather than filter them out). This ability improves with practice. Thus, there is no fixed limit to performance with stationary targets and, consequently, no need to assume that any form discrimination is performed within the motion filter. 相似文献
103.
In visual search, detection of a target in a repeated layout is faster than search within a novel arrangement, demonstrating that contextual invariances can implicitly guide attention to the target location (“contextual cueing”; Chun & Jiang, 1998). Here, we investigated how display segmentation processes influence contextual cueing. Seven experiments showed that grouping by colour and by size can considerably reduce contextual cueing. However, selectively attending to a relevant subgroup of items (that contains the target) preserved context-based learning effects. Finally, the reduction of contextual cueing by means of grouping affected both the latent learning and the recall of display layouts. In sum, all experiments show an influence of grouping on contextual cueing. This influence is larger for variations of spatial (as compared to surface) features and is consistent with the view that learning of contextual relations critically interferes with processes that segment a display into segregated groups of items. 相似文献
104.
Jtirgen Kaschube Angela Wittmann Lutz von Rosenstiel 《European Journal of Work and Organizational Psychology》2013,22(4):521-540
Abstract Goal-setting theory and organizational culture research both emphasize that correspondence of individual and organizational goals is important, especially for executives and managerial candidates. The formerly dominating perspective of a passive individual eager to adopt organizational goals has recently been contrasted by a perspective of an active individual trying to pursue his/her own personal work goals in the organization. In a longitudinal study, 904 German academic managerial candidates were surveyed in order to investigate the causes of their identification with organizational goals, their expectations of advancement and their choice of personal work goals. The influence of organizational characteristics, i.e. number of employees, sector, and organizational culture, as well as the influence of individual job orientations were examined. Results show, that on the one hand organizational culture influenced managerial candidates' identification with organizational goals and their expectations of advancement, but had hardly any impact on their personal work goals. On the other hand, job orientations of managerial candidates affect both their identification with the organization and their personal work goals beyond organizational characteristics. Implications for selection and development of managerial candidates are discussed. 相似文献
105.
Tarja Heponiemi Marko Elovainio Anne Kouvonen Anja Noro Harriet Finne-Soveri Timo Sinervo 《European Journal of Work and Organizational Psychology》2013,22(2):194-202
The present study examined whether organizational justice moderates the association of shift work and employment type with patient-related stress, stress symptoms, and musculoskeletal symptoms. Cross-sectional survey data from 1270 Finnish female elderly care staff aged 18–69 years was used. Analyses of covariance were used to examine the associations adjusted for age,marital status, education, and tenure. Organizational justice was associated with lower levels of patient-related stress, stress symptoms, and musculoskeletal symptoms. Organizational justice mitigated stress symptoms related to working night shift and three shifts. In addition, organizational justice mitigated the patient-related stress associated with working on fixed-term contracts. Organizational justice was also able to alleviate musculoskeletal symptoms associated with working on permanent contracts. Thus, we found evidence for organizational justice being able to mitigate the negative effects of shift work and employment type. Promoting organizational justice in organizations with shift work and lots of fixed-term contracts is of importance. 相似文献
106.
Margot van Wermeskerken John van der Kamp Geert J.P. Savelsbergh Claes von Hofsten 《Developmental science》2013,16(1):91-100
In human adults two functionally and neuro‐anatomically separate systems exist for the use of visual information in perception and the use of visual information to control movements (Milner & Goodale, 1995 , 2008 ). We investigated whether this separation is already functioning in the early stages of the development of reaching. To this end, 6‐ and 7‐month‐old infants were presented with two identical objects at identical distances in front of an illusory Ponzo‐like background that made them appear to be located at different distances. In two further conditions without the illusory background, the two objects were presented at physically different distances. Preferential reaching outcomes indicated that the allocentric distance information contained in the illusory background affected the perception of object distance. Yet, infants' reaching kinematics were only affected by the objects' physical distance and not by the perceptual distance manipulation. These findings were taken as evidence for the two‐visual systems, as proposed by Milner and Goodale ( 2008 ), being functional in early infancy. We discuss the wider implications of this early dissociation. 相似文献
107.
Linda B. Hassing Brent J. Small Eva von Strauss Laura Fratiglioni Lars Bäckman 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(1):11-20
We examined cross-sectional differences and longitudinal changes in episodic memory performance related to impending death among a group of very old people, aged 90–101 years. Participants were assessed at 3 measurement points across a 6-year interval. Three groups were identified: those who survived the entire follow-up period (n =40), those who died before the first follow-up (n =44), and those who died after the first follow-up (n =14). Participants completed a battery of episodic memory tasks consisting of face recognition, word recognition, word recall, and object recall with selective reminding. Those who survived performed better than those who were going to die in object recall at baseline. A Cox regression analysis, controlling age, revealed that object recall performance was significantly related to subsequent mortality status. Longitudinal analyses demonstrated significant 3-year decline for both face recognition and object recall, but no evidence of differential decline as a function of mortality group. Thus, longitudinal changes in memory preceding death were not as pronounced as the corresponding cross-sectional differences in this very old sample. In general, the results suggest that mortality-related memory deficits are present in extreme old age, although these deficits are relatively small and task-specific. 相似文献
108.
The central idea of the good lives model (GLM) is that new criminal offences can be prevented above all by virtue of a satisfying way of life in the wake of the criminal offence. One important rehabilitation strategy is to support clients in this way of life. The aim of the article is to provide a concise overview of the criteria that define this kind of life from the point of view of the GLM, to evaluate the relationship of criminal behavior with regard to these criteria and to point out ways how the rehabilitation model can be fruitfully applied in practical and therapeutic terms. The article closes with a critical evaluation of the rehabilitation model. 相似文献
109.
L'Analyse de Fréquence des Configurations (AFC) est une méthode de recherche des classes et anticlasses dans les classifications croisées de catégories de variables. Les classes sont des modèles de catégories de variables qui apparaissent plus souvent que le hasard ne le laisse supposes. Les anticlasses sont des modèles de catégorie de variables qui apparaissent moins souvent que le hasard ne le laisse supposes. On présente quatre applications d'AFC: l'AFC de premier ordre, l'AFC prédictive, l'AFC de symétrie axiale, et un modèle d'AFC longitudinale. On examine les caractéristiques de l'AFC en insistant sur les contraintes et l'applicabilité. On compare aussi l'AFC avec d'autres méthodes permettant l'analyse multivariée de catégories de données, en particulier la modèlisation log-linéaire. Des sorties informatiques sont traitées.
Configural Frequency Analysis (CFA) is a method for the search for types and antitypes in cross-classifications of categorical variables. Types are patterns of variable categories that occur more often than expected from chance. Antitypes are patterns of variable categories that occur less often than expected from chance. Four applications of CFA are reviewed: the First Order CFA, the Prediction CFA, Axial Symmetry CFA, and one model of Longitudinal CFA. Characteristics of CFA are discussed, focusing on constraints posed and applicability. Comparisons are made of CFA with other methods for multivariate analysis of categorical data, in particular, log-linear modelling. Computational issues are discussed. 相似文献
Configural Frequency Analysis (CFA) is a method for the search for types and antitypes in cross-classifications of categorical variables. Types are patterns of variable categories that occur more often than expected from chance. Antitypes are patterns of variable categories that occur less often than expected from chance. Four applications of CFA are reviewed: the First Order CFA, the Prediction CFA, Axial Symmetry CFA, and one model of Longitudinal CFA. Characteristics of CFA are discussed, focusing on constraints posed and applicability. Comparisons are made of CFA with other methods for multivariate analysis of categorical data, in particular, log-linear modelling. Computational issues are discussed. 相似文献
110.