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221.
Eslinger PJ Blair C Wang J Lipovsky B Realmuto J Baker D Thorne S Gamson D Zimmerman E Rohrer L Yang QX 《Brain and cognition》2009,69(1):1-10
To investigate maturational plasticity of fluid cognition systems, functional brain imaging was undertaken in healthy 8-19 year old participants while completing visuospatial relational reasoning problems similar to Raven's matrices and current elementary grade math textbooks. Analyses revealed that visuospatial relational reasoning across this developmental age range recruited activations in the superior parietal cortices most prominently, the dorsolateral prefrontal, occipital-temporal, and premotor/supplementary cortices, the basal ganglia, and insula. There were comparable activity volumes in left and right hemispheres for nearly all of these regions. Regression analyses indicated increasing activity predominantly in the superior parietal lobes with developmental age. In contrast, multiple anterior neural systems showed significantly less activity with age, including dorsolateral and ventrolateral prefrontal, paracentral, and insula cortices bilaterally, basal ganglia, and particularly large clusters in the midline anterior cingulate/medial frontal cortex, left middle cingulate/supplementary motor cortex, left insula-putamen, and left caudate. Findings suggest that neuromaturational changes associated with visuospatial relational reasoning shift from a more widespread fronto-cingulate-striatal pattern in childhood to predominant parieto-frontal activation pattern in late adolescence. 相似文献
222.
Oliver Gruber Tobias Melcher Esther K. Diekhof Susanne Karch Peter Falkai Thomas Goschke 《Brain and cognition》2009,69(3):559-564
Background monitoring is a necessary prerequisite to detect unexpected changes in the environment, while being involved in a primary task. Here, we used fMRI to investigate the neural mechanisms that underlie adaptive goal-directed behavior in a cued task switching paradigm during real response conflict or, more generally, when expectations on the repetitive features of the environment were violated. Unexpected changes in sensory stimulus attributes in the currently unattended stimulus dimension thereby led to activations in a bilateral network comprising inferior lateral frontal, intraparietal, and posterior medial frontal brain regions, independent of whether these attributes elicited a factual response conflict or not. This fronto-parietal network may thus play an important role in adaptive responding to potentially significant events outside the current focus of attention. 相似文献
223.
Lourdes Ezpeleta Josep Toro 《Journal of psychopathology and behavioral assessment》2009,31(3):168-177
This is a study of comorbid anxiety disorders and how they affect the clinical picture of comorbid cases. The sample consisted
of 576 Spanish children aged 8 to 17 years receiving psychiatric outpatient consultation that were evaluated using a semi-structured
diagnostic interview for both parents and children. A specific association of homotypic comorbidity among anxiety disorders
that was independent of the presence of other disorders was found. There was heterotypic comorbidity between anxiety and depressive
disorders, ADHD, anorexia and tic disorders. Relationships between non-anxiety disorders were, in general, independent of
anxiety, but anxiety moderated the relationship between ADHD-Conduct disorder and Conduct disorder-enuresis. Comorbid anxiety
increased difficulties in social interaction, was related with higher global impairment and had an impact on consultation
and medication. Anxiety disorder comorbidity should be well recognized in order not to disregard the treatment of all present
disorders. 相似文献
224.
Increased variability is a characteristic clinical and physiologic feature of functional (psychogenic) tremor. In this study, we use computerized spiral analysis to show that the variability of a motor task is a quantifiable characteristic of functional tremor. We compare functional tremor patients to phenomenologically similar dystonic tremor patients and to normal controls. We used the spiral severity score, a measure that does not incorporate spiral tightness, as a marker of spiral drawing performance, and inter-spiral tightness variability (based on the 25–75%ile range in tightness across ten spirals) to evaluate the effects of functional tremor on drawing spirals. The spirals of 74 participants: 22 functional tremor, 21 dystonic tremor, and 31 normal controls were analyzed. Spiral severity was higher in both tremor groups compared to controls, but did not differentiate them. Inter-spiral variability, however, was higher in the functional tremor group compared to both other groups. Thus, spiral analysis captures variability of a motor task and may be used as an objective test for functional tremor. The effect of functional tremor in other motor tasks should be investigated. 相似文献
225.
Understanding the mechanisms involved in perception and conception of oneself is a fundamental psychological topic with high relevance for psychiatric and neurological issues, and it is one of the great challenges in neuroscientific research. The paradigmatic single-case study presented here aimed to investigate different components of self- and other-processes and to elucidate corresponding neurobiological underpinnings. An eminent professional opera singer with profound performance experience has undergone functional magnetic resonance imaging and was exposed to excerpts of Mozart arias, sung by herself or another singer. The results indicate a distinction between self- and other conditions in cortical midline structures, differentially involved in self-related and self-referential processing. This lends further support to the assumption of cortical midline structures being involved in the neural processing of self-specific stimuli and also confirms the power of single case studies as a research tool. 相似文献
226.
The biographical sketches from Luria's life reveal the capricious political changes and their effect on the development of Soviet neuropsychology. The picture that emerges is of an individual who survived several ideological reprisals. He introduced Vygotsky into the mainstream of psychology, and continued to advance the study of cognitive functions within the context of neuroanatomy of the brain. And yet, he had an open mind judged by his interest in Freud, and welcoming to his clinic pioneers of psychology such as Piaget, Bruner and Pribram. Also included are intimate impressions of a daughter of her father, who like his young mentor, Vygotsky was a near-genius. He was unvanquished by adversities, doggedly working away to extend the frontiers of the science of human mind. 相似文献
227.
Marceline B. R. Kroon Dik Van Kreveld Jacob M. Rabbie 《Journal of community & applied social psychology》1991,1(4):249-267
This study explores the role of perceived accountability in riot police action. The basic hypothesis is that accountability, provided that non-violent norms are made salient, will lessen the chances of escalation of a conflict between police and demonstrators. Four platoons participated in a field experiment conducted at the Dutch Riot Police Academy, in which they played a riot simulation. In a 2 × 2 design, the effects of accountability and Department on attitudes and norms concerning the action of ‘police’ and ‘demonstrators’ were tested. Measurements were made before and after the simulation. Internal analysis, involving redefined accountability categories, provided support for our hypothesis. That is, perceived accountability proved to be related to a heightened public self-awareness, a less extremely positive evaluation of fellow group members, and less intergroup differentiation. The limitations of an internal analysis are discussed, as well as the importance of the nature of organizational norms and of the accountability forum in predicting the effect of accountability. 相似文献
228.
229.
Catherine E. Amiot Morgana Lizzio-Wilson Emma F. Thomas Winnifred R. Louis 《European journal of social psychology》2020,50(3):485-504
This article introduces a model of the internalisation of normative social harmdoing: the MINSOH. This model seeks to explain how group members internalise harmful social norms such that they personally endorse their groups' normative actions. To this aim, the MINSOH integrates two divergent yet complementary theoretical perspectives: self-determination theory and the social identity approach. These perspectives differ in their basic assumptions about the possibility for harm to become internalised, yet when integrated, they provide a powerful account of how harmdoing can become internalised. The MINSOH proposes specific conditions under which harmful normative actions become accepted by group members. This article outlines multiple self-determined motivations for harmdoing and discrete group processes that enable harmdoing to be internalised and autonomously enacted, and reviews factors that facilitate (i.e., strong/unique/comparative social identification; endorsement of ideological justifications) and block the internalisation process (presence of multiple identities/diverging norms; inclusive superordinate identity). Directions for future research are then discussed. 相似文献
230.
社会心理学的经典研究将社会规范区分为描述性规范与指令性规范。近年来, 研究者从以往对社会规范的静态区分, 开始深入研究社会规范“如何发展变化”的动态过程, 即探究社会规范的习得、传播与转变过程, 以及社会规范发挥作用的影响因素。社会规范的习得可以追溯至童年早期的社会互动, 描述性规范的形成是个体在社会网络中学习社会范畴典型范例的过程, 对现状的合理化催生了描述性规范向指令性规范的转化。社会规范发挥作用也呈现动态性, 不仅与社会规范的心理功能相关, 即遵守或违反社会规范能满足个体的安全感、归属感、独特感需要等, 还与外部环境如权力位置、惩罚机制相关。未来研究可对社会规范形成过程、作用过程做进一步分析; 结合社会规范强度研究, 深入探讨规范性影响的作用过程; 开展文化情境下的社会规范研究等。 相似文献