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901.
Wenchao Ma Jimmy de la Torre 《The British journal of mathematical and statistical psychology》2016,69(3):253-275
This paper proposes a general polytomous cognitive diagnosis model for a special type of graded responses, where item categories are attained in a sequential manner, and associated with some attributes explicitly. To relate categories to attributes, a category‐level Q‐matrix is used. When the attribute and category association is specified a priori, the proposed model has the flexibility to allow different cognitive processes (e.g., conjunctive, disjunctive) to be modelled at different categories within a single item. This model can be extended for items where categories cannot be explicitly linked to attributes, and for items with unordered categories. The feasibility of the proposed model is examined using simulated data. The proposed model is illustrated using the data from the Trends in International Mathematics and Science Study 2007 assessment. 相似文献
902.
传统单一模态、单一分析方法在揭示抑郁症脑机制上存在较多局限;而新近多种模态、多种分析方法的结合可在一定程度上较好地促进对抑郁症脑功能和结构的全面探索、挖掘,可以更加有效地运用和实施于早期辅助诊断、干预治疗当中。因此,本文首先简要介绍了多种模态下的脑影像指标及其分析技术,而后分别从结构及功能神经影像数据融合等方面,概述了抑郁症脑结构和功能的研究现状,发现抑郁症患者存在诸多脑区及相关环路结构及功能的异常。同时,通过对抑郁症多模态研究现状的梳理和总结,结合我们已有的相关前期研究工作,对未来抑郁症等情感障碍的进一步研究工作提出了一些思考和展望。 相似文献
903.
Premonitory urges are associated with decreased grey matter thickness within the insula and sensorimotor cortex in young people with Tourette syndrome
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Amelia Draper Georgina M. Jackson Paul S. Morgan Stephen R. Jackson 《Journal of Neuropsychology》2016,10(1):143-153
Tourette syndrome (TS) is a neurological disorder characterized by vocal and motor tics and is associated with cortical–striatal–thalamic–cortical circuit (CSTC) dysfunction and hyperexcitability of cortical limbic and motor regions, which are thought to lead to the occurrence of tics. Importantly, individuals with TS often report that their tics are preceded by ‘premonitory sensory phenomena’ (PSP) that are described as uncomfortable cognitive or bodily sensations that precede the execution of a tic, and are experienced as a strong urge for motor discharge. While the precise role played by PSP in the occurrence of tics is controversial, PSP are nonetheless of considerable theoretical and clinical importance in TS, not least because they form the core component in many of the behavioural therapies that are currently used in the treatment of tic disorders. In this study, we investigated the brain structure correlates of PSP. Specifically, we conducted a whole‐brain analysis of cortical (grey matter) thickness in 29 children and young adults with TS and investigated the association between grey matter thickness and PSP. We demonstrate for the first time that PSP are inversely associated with grey matter thickness measurements within the insula and sensorimotor cortex. We also demonstrate that grey matter thickness is significantly reduced in these areas in individuals with TS relative to a closely age‐ and gender‐matched group of typically developing individuals and that PSP ratings are significantly correlated with tic severity. 相似文献
904.
Young‐Eun C. Lee David R. Williams Jacqueline F. I. Anderson 《Journal of Neuropsychology》2016,10(1):1-14
The clinical differentiation of progressive supranuclear palsy from Parkinson's disease can be challenging, due to overlapping clinical features and a lack of diagnostic markers. Abnormalities in cognitive function form part of the clinical spectrums of these diseases and distinctive cognitive profiles may be helpful in differentiating these diseases in the diagnostic period. A comprehensive neuropsychological test battery was administered to 12 patients with clinically diagnosed progressive supranuclear palsy and 12 patients with Parkinson's disease matched for age and disease duration. Effect size (Cohen's d) was calculated for cognitive tests that were significantly different between groups. Patients with progressive supranuclear palsy performed significantly worse than those with Parkinson's disease on measures of processing speed, verbal fluency, planning, verbal abstract reasoning, verbal memory, and made more perseverative responses on a set shifting task. Measures of executive function, manual dexterity and processing speed were most diagnostically useful (Cohen's d > 2.0) in differentiating between progressive supranuclear palsy and Parkinson's disease. These findings suggest that more severe and prominent ‘frontal’ cognitive deficits in patients with progressive parkinsonism would be helpful in predicting progressive supranuclear palsy rather than Parkinson's disease and these findings may contribute to the development of diagnostic criteria. 相似文献
905.
The short-term training effects on various executive functions (EFs) by a movement-based contemplative practice (MBCP) are examined. Three aspects of EFs (working memory capacity, inhibition, switching) are assessed before and after a month-long 12-h training period using Body-Mind Axial Awareness (BMAA) principles that Confucius followers have practiced for more than 2000 years. A mindfulness-based practice (Chan-meditation) and a waiting-list control group served as contrast groups. Our results showed that the BMAA group performed better on the task that measured working memory capacity than did the Chan-meditation and the waiting-list groups after training. In addition, the Chan-meditation groups outperformed the control group on attentional switching, a novel finding for this kind of practice. Our findings not only show a new effect of short-term MBCPs on EFs, but also indicate movement-based and mindfulness-based contemplative practices might benefit development of various aspects of EFs in different ways. 相似文献
906.
Joshua W. Kirton Vonetta M. Dotson 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2016,23(2):253-262
We examined the moderating effects of age and cognitive reserve on the relationship between body mass index (BMI) and processing speed, executive function, and working memory based on the literature suggesting that obese individuals perform more poorly on measures of these abilities. Fifty-six healthy, dementia-free community-dwelling older (mean age 65.72 ± 7.40) and younger (mean age 21.10 ± 2.33) adults completed a neuropsychological battery and reported height and weight. Mixed effects models were used to evaluate the interactive effects of age, education (a proxy for cognitive reserve), and BMI on cognitive scores. Higher education was protective for executive deficits in younger, but not older adults. Age differences in executive functions were reduced at higher education levels but increased in individuals with higher BMI. Results suggest the inter-relationships between cognitive reserve – as measured by education – and BMI differ across age, and that obesity may accelerate the cognitive aging process. 相似文献
907.
Steve Myers 《The Journal of analytical psychology》2016,61(2):183-202
From the mid‐1930s to the end of his life, Jung complained that most readers misunderstood the main point of his book Psychological Types. He viewed being a type as one‐sided and problematic for a variety of reasons. His symbol‐based solution to the ‘type problem’ involved developing a transcendent function to become the new dominant function of consciousness. However, this function has not featured in the popular use of his typology and Isabel Briggs Myers believed that the one‐sidedness of Jung's eight types could be balanced by the auxiliary function. This has led to the transcendent function being widely ignored, and to a developmental philosophy that encourages a degree of one‐sidedness. This divergence of popular type theory and analytical psychology is the result of various factors, such as Jung describing typology as containing four functions, and a letter in 1950 where Jung apparently supported Myers’ version of type theory. This hinders the application of analytical psychology to normal psychology, and particularly individual and cultural development. If we refer to Jung's typology as containing five functions not four, this more accurately represents both the content of the book Psychological Types and the primary value Jung saw in typology. 相似文献
908.
A total of 405 children of 5–18 years of age were administered performance-based and parent-report measures of executive function (EF), and measures of motor, attention, reading, and mathematics performance. Attention, reading, and mathematics abilities were associated with a parent-report measure of EF. Reading and mathematics abilities were also associated with performance-based measures of EF, including the Animal Sorting, Inhibition, and Response Set subtests of the Developmental NEuroPSYchological Assessment-II. In contrast, motor functioning was only associated with performance-based measures of EF. Findings suggest that different constructs of EF are measured by parent-report versus performance-based measures, and that these different constructs of EF are associated with different neurodevelopmental processes. 相似文献
909.
910.