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801.
The relationship between linear factor models and latent profile models is addressed within the context of maximum likelihood estimation based on the joint distribution of the manifest variables. Although the two models are well known to imply equivalent covariance decompositions, in general they do not yield equivalent estimates of the unconditional covariances. In particular, a 2-class latent profile model with Gaussian components underestimates the observed covariances but not the variances, when the data are consistent with a unidimensional Gaussian factor model. In explanation of this phenomenon we provide some results relating the unconditional covariances to the goodness of fit of the latent profile model, and to its excess multivariate kurtosis. The analysis also leads to some useful parameter restrictions related to symmetry.  相似文献   
802.
803.
Findings from molecular genetic research have indicated that a polymorphism in the promoter region of the MAOA gene interacts with environmental liabilities to predict antisocial phenotypes. We use these findings as a springboard to examine whether a global protective-risk factor index moderates the effect of MAOA genotype on the probability of being incarcerated and on a measure of anger and hostility. Analysis of data from the National Longitudinal Study of Adolescent Health (Add Health) indicates that exposure to risk and protective factors in adolescence are able to moderate the effect of MAOA genotype on anger and hostility in adulthood for males. The results in relation to the probability of being incarcerated were consistently null.  相似文献   
804.
Former research demonstrated that depression is associated with dysfunctional attentional processing of emotional information. Most studies examined this bias by registration of response latencies. The present study employed an ecologically valid measurement of attentive processing, using eye-movement registration. Dysphoric and non-dysphoric participants viewed slides presenting sad, angry, happy and neutral facial expressions. For each type of expression, three components of visual attention were analysed: the relative fixation frequency, fixation time and glance duration. Attentional biases were also investigated for inverted facial expressions to ensure that they were not related to eye-catching facial features. Results indicated that non-dysphoric individuals were characterised by longer fixating and dwelling on happy faces. Dysphoric individuals demonstrated a longer dwelling on sad and neutral faces. These results were not found for inverted facial expressions. The present findings are in line with the assumption that depression is associated with a prolonged attentional elaboration on negative information.  相似文献   
805.
Apraxic agraphia is a writing disorder due to a loss or lack of access to motor engrams that program the movements necessary to produce letters. Clinical and functional neuroimaging studies have demonstrated that the neural network responsible for writing includes the superior parietal region and the dorsolateral and medial premotor cortex. Recent studies of two cases with atypical lesion localisations in the left thalamus and the right cerebellum support the hypothesis that the written language network is larger than previously assumed. The aim of this study is twofold: (1) to provide a survey of cases of apraxic agraphia published between 1973 and June 2010, and (2) to provide further evidence for a role of the cerebellum in writing via three additional cases who presented with apraxic agraphia after ischemic damage in the cerebellum. Functional neuroimaging studies by means of brain perfusion SPECT showed perfusional deficits in the anatomoclinically suspected supratentorial areas, subserving language dynamics, syntax, naming, writing and executive functioning.  相似文献   
806.
Abstract. This paper both clarifies and broadens the notion of control and its relation to the self. By discussing instances of skillful absorption from different cultural backgrounds, I argue that the notion of control is not as closely related to self‐consciousness as is often suggested. Experiences of flow and wu‐wei exemplify a nonself‐conscious though personal type of control. The intercultural occurrence of this type of behavioral control demonstrates its robustness, and questions two long‐held intuitions about the relation between self‐consciousness and the experience of control. The first intuition holds that the conscious self initiates and controls actions, thoughts, and feelings. The second is the view that losing this self‐conscious type of control is a negative and upsetting experience. By focusing on “the paradox of control” in these experiences of skillful absorption, I argue that a feeling of control can occur without a self that narratively claims control. Furthermore, this type of control can be a very positive and pleasurable experience. Therefore, the common views of the notion of control are in need of broader conceptualization and further refinement.  相似文献   
807.
Employing a die-under-cup paradigm, we study the extent to which people lie when it is transparently clear they cannot be caught. We asked participants to report the outcome of a private die roll and gain money according to their reports. Results suggest that the degree of lying depends on the extent to which self-justifications are available. Specifically, when people are allowed to roll the die three times to ensure its legitimacy, but only the first roll is supposed to “count,” we find evidence that the highest outcome of the three rolls is reported. Eliminating the ability to observe more than one roll reduces lying. Additional results suggest that observing desired counterfactuals, in the form of additional rolls not meant to determine pay, attenuates the degree to which people perceive lies as unethical. People seem to derive value from self-justifications allowing them to lie for money while feeling honest.  相似文献   
808.

Purpose  

This study examined to what extent managers who hold an incremental implicit person theory (i.e., believe that personal attributes are relatively malleable) rely on proactive strategies to address imbalances between demands and abilities.  相似文献   
809.
The present study investigated the distinctive effects of global and specific attachment styles on the processing of attachment‐figure cues, focusing specifically on the role of cognitive inhibition. We manipulated the temporal accessibility of specific attachment styles and measured automatic inhibitory processes using a negative affective priming (NAP) task presenting positive and negative words. We also measured one's explicit attitude towards the attachment figure. Results showed that specific, but not global, attachment styles influenced the processing of attachment‐figure cues. We also found that participants primed with a secure attachment style showed a better inhibition of negative traits than those primed with an insecure style. At the explicit level, the anxious attachment types showed a more negative evaluation of their attachment figure than primed secures. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
810.
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