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51.
Occlusion is a frequent occurrence in a cluttered world of opaque objects. Often information about the shape of partly occluded objects can be gathered from the visible portion of the object and in particular its contours. Here we address the case where a region of a surface is visible exclusively through an aperture (visual hole). We make several observations about the grouping of surface regions visible through holes, and the appearance of moving objects and holes. These observations support the view that holes are shape properties of the object-with-hole. 相似文献
52.
Visual search can be facilitated when participants receive a preview of half the distractors (the preview benefit in search; Watson & Humphreys, 1997). Donk and Theeuwes (2001) have argued that preview-based benefits are abolished if the display items are isoluminant to a background. This is consistent with the preview benefit being due to onset capture by the new stimuli. In contrast, the present experiments challenge this suggestion and show that preview benefits can occur under isoluminant conditions, providing that they are given enough time to occur. In Experiment 1, we showed that a preview benefit can occur even with isoluminant stimuli, provided that the old items are previewed for a sufficient time. In Experiment 2, we tested and rejected the idea that this advantage is due to low-level sensory fatigue for the preview stimuli. These findings indicate that the preview effect is not caused solely by onset capture. 相似文献
53.
Johan Caudroit Yannick Stephan Britton W. Brewer Christine Le Scanff 《Journal of applied social psychology》2010,40(8):1999-2018
The present study aims to identify the processes underlying athletes' psychological disengagement during a competitive event. It was expected that goal attainment would predict psychological disengagement through the mediation of physical self‐worth. It was further hypothesized that athletic identity and passion for the activity would be predictors of psychological disengagement. Athletes completed measures of athletic identity, passion, and physical self‐worth before a competition; and perceived goal attainment, physical self‐worth, and psychological disengagement after a competition. Physical self‐worth mediated the relationship between perceived goal attainment and discounting. Obsessive passion and athletic identity were negatively related to devaluing over and above goal attainment and physical self‐worth. The study highlights individual and contextual correlates of psychological disengagement in the sport setting. 相似文献
54.
André M. van der Laan René Veenstra Stefan Bogaerts Frank C. Verhulst Johan Ormel 《Journal of abnormal child psychology》2010,38(3):339-351
This study uses a social-ecological approach to the development of delinquency. The authors emphasize that a balance between
eliminating risk and enhancing protection across domains is essential in reducing problems and promoting competence. The cumulative
risk and promotive effects of temperament, family and school factors in preadolescence were examined on different groups of
delinquents (based on self-report) in early adolescence. Data from the first two waves of the TRAILS study (N = 2,230) were used. The results provide evidence for a compensatory model that assumes main effects of risk and promotive
factors on problem behavior. Accumulation of risks in preadolescence promoted being a serious delinquent in early adolescence,
with the strongest effects for temperament. Accumulation of promotive effects decreased being a delinquent and supported being
a non-delinquent. Furthermore, evidence is found for a counter-balancing effect of cumulative promotive and risk factors.
Exposure to more promotive domains in the relative absence of risk domains decreased the percentage of serious delinquents.
Our results did not support a protective model. Implications for prevention and intervention are discussed. 相似文献
55.
Despite their divergent metaphysical assumptions, Reformed and evolutionary epistemologists have converged on the notion of proper basicality. Where Reformed epistemologists appeal to God, who has designed the mind in such a way that it successfully aims at the truth, evolutionary epistemologists appeal to natural selection as a mechanism that favors truth-preserving cognitive capacities. This paper investigates whether Reformed and evolutionary epistemological accounts of theistic belief are compatible. We will argue that their chief incompatibility lies in the noetic effects of sin and what may be termed the noetic effects of evolution, systematic tendencies wherein human cognitive faculties go awry. We propose a reconceptualization of the noetic effects of sin to mitigate this tension. 相似文献
56.
Erla Svansdottir Krista C. van den Broek Hrobjartur D. Karlsson Daniel T. Olason Hordur Thorgilsson Johan Denollet 《Personality and individual differences》2013
The distressed (Type D) personality (the combination of negative affectivity and social inhibition traits) has been associated with adverse health outcomes. This study investigated the validity of the Type D construct against the Five-Factor Model (FFM) of personality, and its association with emotional control and distress. In total 498 university students (mean age 28.9 ± 8.4 years) completed the Type D scale (DS14), and measurements for the FFM of personality, emotional control, anxiety, depression and stress. The construct validity of the Icelandic DS14 was confirmed. The Type D components negative affectivity and social inhibition were strongly associated with neuroticism and extraversion of the FFM (r = 0.82 and r = −0.67, respectively). Negative affectivity also correlated with rehearsal/rumination (r = 0.58) and social inhibition with emotional inhibition (r = 0.54), indicative of emotional control. Type D personality (40% of sample) was associated with higher levels of anxiety, depression and stress. The Type D personality components were associated with the FFM of personality, emotional control and emotional distress. Importantly, social and emotional inhibition were closely related, providing novel information about the presence of emotional inhibition within the social inhibition trait. 相似文献
57.
Philip Spinhoven Willem van der Does Johan Ormel Frans G. Zitman Brenda WJH Penninx 《欧洲人格杂志》2013,27(4):389-397
Foremost cross‐sectional studies of personality in common mental disorders show similar Big Five trait profiles [i.e. high neuroticism (N), low conscientiousness (C) and low extraversion (E)]. It remains undecided whether this lack of distinct personality profiles is partly due to comorbidity among disorders or contamination by current state. Using data from the Netherlands Study of Depression and Anxiety, we investigated 1046 participants with panic disorder (PD), social anxiety disorder (SAD) and/or major depressive disorder (MDD) and 474 healthy controls. Personality traits at baseline and two‐year follow‐up were assessed with the NEO‐Five Factor Inventory. The Composite International Diagnostic Interview was used to determine the presence of emotional disorders at baseline and at two‐year follow‐up; the Life Chart Interview determined symptom severity in the month prior to baseline and during follow‐up. By analysing pure cases and investigating the effects in remitted cases, PD participants were found to be higher in N, but not lower in E and C than controls. Pure PD participants were also lower in N and higher in E than SAD and MDD participants. Both SAD and MDD participants were characterized by high levels of N and low levels of E, irrespective of comorbidity or current disorder state. Future studies should be more attentive to confounding of personality profiles by comorbidity and state effects. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
58.
This article addresses modeling oscillation in continuous time. It criticizes Steele and Ferrer's article “Latent Differential Equation Modeling of Self-Regulatory and Coregulatory Affective Processes” (2011), particularly the approximate estimation procedure applied. This procedure is the latent version of the local linear approximation procedure based on Boker (2001) and Boker, Neale, and Rausch (2004). It furthermore presents two exact alternative estimation procedures, one using filter techniques and the other using structural equation modeling. 相似文献
59.
Tom Loeys Beatrijs Moerkerke Olivia De Smet Ann Buysse Johan Steen Stijn Vansteelandt 《Multivariate behavioral research》2013,48(6):871-894
In the social sciences, mediation analysis has typically been formulated in the context of linear models using the Baron &; Kenny (1986) approach. Extensions to nonlinear models have been considered but lack formal justification. By placing mediation analysis within the counterfactual framework of causal inference one can define causal mediation effects in a way that is not tied to a specific statistical model and identify them under certain no unmeasured confounding assumptions. Corresponding estimation procedures using parametric or nonparametric models, based on the so-called mediation formula, have recently been proposed in the psychological literature and made accessible through the R-package mediation. A number of limitations of the latter approach are discussed and a more flexible approach using natural effects models is proposed as an alternative. The latter builds on the same counterfactual framework but enables interpretable and parsimonious modeling of direct and mediated effects and facilitates tests of hypotheses that would otherwise be difficult or impossible to test. We illustrate the approach in a study of individuals who ended a romantic relationship and explore whether the effect of attachment anxiety during the relationship on unwanted pursuit behavior after the breakup is mediated by negative affect during the breakup. 相似文献
60.
Paul Lodder Johan Denollet Wilco H. M. Emons Giesje Nefs Frans Pouwer Jane Speight 《Multivariate behavioral research》2013,48(5):637-665
Several approaches exist to model interactions between latent variables. However, it is unclear how these perform when item scores are skewed and ordinal. Research on Type D personality serves as a good case study for that matter. In Study 1, we fitted a multivariate interaction model to predict depression and anxiety with Type D personality, operationalized as an interaction between its two subcomponents negative affectivity (NA) and social inhibition (SI). We constructed this interaction according to four approaches: (1) sum score product; (2) single product indicator; (3) matched product indicators; and (4) latent moderated structural equations (LMS). In Study 2, we compared these interaction models in a simulation study by assessing for each method the bias and precision of the estimated interaction effect under varying conditions. In Study 1, all methods showed a significant Type D effect on both depression and anxiety, although this effect diminished after including the NA and SI quadratic effects. Study 2 showed that the LMS approach performed best with respect to minimizing bias and maximizing power, even when item scores were ordinal and skewed. However, when latent traits were skewed LMS resulted in more false-positive conclusions, while the Matched PI approach adequately controlled the false-positive rate. 相似文献