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Tania M. Lincoln Stephanie Mehl Michael Ziegler Marie-Luise Kesting Cornelia Exner Winfried Rief 《Behavior Therapy》2010,41(2):187-197
The assumption that a low sense of self-worth can give rise to paranoid delusions is relevant from a therapeutic perspective, but research has been inconsistent. The present study sought to investigate how interpersonal self-concepts and global self-worth relate to psychotic and depressive psychopathology in persons with psychosis. Participants with psychosis (n = 83) and healthy controls (n = 33) were assessed for global self-worth, interpersonal self-concepts, and dysfunctional beliefs using the Frankfurt Self-Concept Scale and the Dysfunctional Attitude Scale. Symptoms were assessed with the Positive and Negative Syndrome Scale, the Peters et al. Delusions Inventory, the Paranoia Checklist, and the Beck Depression Inventory. We hypothesized that perceived threat to self-worth, as expressed in dysfunctional acceptance beliefs and negative interpersonal self-concepts, would be uniquely associated with persecutory delusions. In contrast, low global self-worth would be strongly associated with symptoms of depression. Multiple regression analyses were used to investigate the association between symptoms and self-concepts. As expected, low global self-worth was associated with depression, whereas the more specific perception of not being accepted by relevant others was most clearly related to psychotic symptoms. Almost half of the variance in paranoia scores was explained by negative interpersonal self-concepts and the interaction between negative interpersonal self-concepts and dysfunctional acceptance beliefs. Thus, cognitive interventions for delusions might be improved by focusing more on interpersonal self-concepts. 相似文献
83.
Bekker MJ Cumming TD Osborne NK Bruining AM McClean JI Leland LS 《Journal of applied behavior analysis》2010,43(2):327-331
This experiment investigated the combined use of visual prompts, daily feedback, and rewards to reduce electricity consumption in a university residential hall. After a 17-day baseline period, the experimental intervention was introduced in the intervention hall, and no change was made in the control hall. Energy usage decreased in the intervention hall, but energy usage did not change appreciably in the control hall. In the intervention hall, mean daytime and nighttime savings were 16.2% and 10.7%, respectively, compared to savings of 3.8% (day) and 6.5% (night) in the control hall. 相似文献
84.
Tânia Fernandes Régine Kolinsky Paul Ventura 《Attention, perception & psychophysics》2010,72(6):1522-1532
In two artificial language learning experiments, we investigated the impact of attention load on segmenting speech through two sublexical cues: transitional probabilities (TPs) and coarticulation. In Experiment 1, we observed that coarticulation processing was resilient to high attention load, whereas TP computation was penalized in a graded manner. In Experiment 2, we showed that encouraging participants to actively search for “word” candidates enhanced overall performance but was not sufficient to preclude the impairment of statistically driven segmentation by attention load. As long as attentional resources were depleted, independently of their intention to find these “words,” participants segmented only TP words with the highest TPs, not TP words with lower TPs. Attention load thus has a graded and differential impact on the relative weighting of the cues in speech segmentation, even when only sublexical cues are available in the signal. 相似文献
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The fields of cognitive neuroscience and neuropsychology have contributed an extensive corpus of research to the study of
error monitoring processes in younger adults; however, less is known about error handling in older adults. This paper highlights
current conceptualizations of error detection and correction in healthy and impaired older adult populations. The literature
suggests that some error handling processes require fewer processing resources than others and may be performed relatively
automatically. Compared with young adults, older adults demonstrate a reduced ability to recognize errors, but exhibit similar
rates of correction. Older adults diagnosed with a neurodegenerative disease (e.g. Alzheimer’s disease) show a reduced ability
to detect and correct their action errors. Thus, neurodegenerative disease processes amplify the impairments in error identification
associated with normal aging by disrupting both automatic and controlled error corrections. The clinical implications of our
current knowledge are discussed, and directions for future neuropsychological research are offered.
相似文献
Tania GiovannettiEmail: |
88.
Tania Lombrozo 《Cognition》2009,110(2):248-253
Recent theoretical and empirical work suggests that explanation and categorization are intimately related. This paper explores the hypothesis that explanations can help structure conceptual representations, and thereby influence the relative importance of features in categorization decisions. In particular, features may be differentially important depending on the role they play in explaining other features or aspects of category membership. Two experiments manipulate whether a feature is explained mechanistically, by appeal to proximate causes, or functionally, by appeal to a function or goal. Explanation type has a significant impact on the relative importance of features in subsequent categorization judgments, with functional explanations reversing previously documented effects of ‘causal status’. The findings suggest that a feature’s explanatory importance can impact categorization, and that explanatory relationships, in addition to causal relationships, are critical to understanding conceptual representation. 相似文献
89.
Catherine Calvin Cres Fernandes Pauline Smith Peter M. Visscher Ian J. Deary 《Intelligence》2009,37(3):243-248
ObjectiveTo investigate whether twins still perform below singletons in cognitive ability tests and in national educational attainment examinations in a recent UK cohort of 11-year-olds.DesignPopulation-based cohort study, using a validated method of twin extraction.SettingEnglish state schools.Participants178,599 pupils (mean age 11 years) attending English state schools in 2004, representing 93% of local educational authorities.Main outcome measuresVerbal, quantitative and nonverbal reasoning measured by the Cognitive Abilities Test — Third Edition (CAT3), and educational attainment in English, maths and science from Key Stage 2 national curriculum tests.ResultsTwin-singleton differences in cognitive ability were of negligible effect size. Mean performance of twins was 1% of a SD below singletons on general cognitive ability, 3% lower on verbal reasoning, and less than 1% of a SD lower on quantitative and nonverbal reasoning, with and without adjustment for sex. Almost identical proportions of twins and singletons attained the expected standards of educational performance in English (80.4% versus 80.5%, respectively), maths (77.4% versus 77.3%), and science (90.1% versus 88.8%). There were no differences in rates of twins and singletons achieving higher or lower performance levels.ConclusionThe cognitive cost of being a twin reported in previous cohorts of UK children no longer exists in a large, contemporary and population-representative sample. 相似文献
90.
A. Castro‐Caldas M. V. Nunes F. Maestu T. Ortiz R. Simoes R. Fernandes E. de La Guia E. Garcia M. Goncalves 《Journal of Neuropsychology》2009,3(1):17-30
Previous work demonstrated that there were differences between literate and comparable illiterate adult subjects. These differences were found in the performance on several tests and on patterns of activation on PET and fMRI. In the present study subjects that learned to read and to write in adulthood (being previously completely illiterate) were compared to controls, that is subjects that learned at school at the proper age. Magnetoencephalography was done while subjects were reading words. Results showed that, although the reading performance was the same in both groups while performing the task, the pattern of source distribution was different between groups. There were more late sources in right temporo‐parietal areas of late literates compared to controls and more late sources in left inferior frontal cortex in control subjects. It is concluded that learning to read in adulthood is a process supported by different brain structures from the ones used when learning occurs at the proper age. This may suggest that the same task can be similarly performed by relying on diverse functional brain anatomic networks. 相似文献