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排序方式: 共有242条查询结果,搜索用时 15 毫秒
111.
Josef J. Bless Kenneth Hugdahl René Westerhausen Gro C. Løhaugen Ole Christian Eidheim Ann‐Mari Brubakk Jon Skranes Arne Gramstad Asta K. Håberg 《Scandinavian journal of psychology》2013,54(3):179-187
The objective of the paper is to explore bottom‐up auditory and top‐down cognitive processing abilities as part of long‐term outcome assessment of preterm birth. Fifty‐five adolescents (age 13–15) born with very low birth weight (VLBW) were compared to 80 matched controls born to term, using three consonant‐vowel dichotic listening (DL) instruction conditions (non‐forced, forced‐right and forced‐left). DL scores were correlated with cortical gray matter thickness derived from T1‐weighted structural MRI volumes using FreeSurfer to examine group differences also in the neural correlates of higher cognitive processes. While showing normal bottom‐up processing, VLBW adolescents displayed impaired top‐down controlled conflict processing related to significant cortical thickness differences in left superior temporal gryus and anterior cingulate cortex. Preterm birth with VLBW induces fundamental changes in brain function and structure posing a risk for long‐term neurocognitive impairments. Deficits emerge in situations of increasing cognitive conflict and can be related to measures of executive functions as well as morphology. 相似文献
112.
Electroencephalographic (EEG) frontal alpha asymmetry (FAA) and frontal midline (FM) theta have been suggested as biomarkers for depression and anxiety, but have mostly been assessed in small and non‐clinical studies. In a clinical sample of 79 adults with depression (ICD‐10: F32), resting EEG and scales of depression (MADRS) and anxiety (HADS‐A) were measured at intake and after 3 months. FAA and FM theta values were referenced to a normative population database. Internal consistency, test‐retest reliability, and correlations with psychiatric tests were examined. Reliability was sufficient. However, FAA and FM theta values were close to the general population, and correlations with psychiatric tests were mostly small and non‐significant, with the exception of FAA on F7–F8 z‐scores and HADS‐A. We conclude that the validity of FAA and FM theta and therefore their potential as biomarkers for depression and anxiety remain unclear. 相似文献
113.
Hemispheric asymmetry implies the existence of developmental influences that affect one hemisphere more than the other. However, those influences are poorly understood. One simple view is that asymmetry may exist because of a relationship between a mental process' degree of lateralization and how well it functions. Data scaling issues have largely prevented such investigations, but it is shown that scaling effects are minimized after correction for ceiling and floor effects. After correction, lateralization-performance correlations are pervasive. However, while some correlations are positive, others are negative, with the direction depending on the underlying lateralized process. Two hypotheses are proposed that can account for these relationships by pointing either to individual differences in maturation of the corpus callosum or to developmental limits encountered at different ages of childhood. Their investigation should contribute toward a neurodevelopmental theory of hemispheric asymmetry. 相似文献
114.
Teigen KH 《Scandinavian journal of psychology》2008,49(1):49-57
Sighing and the interpretation of sighs in everyday life seem never to have been the subject of psychological research. A questionnaire study of sighing showed that people associate sighing mainly with negative, low-intensity and deactivated emotional states. A second study investigated self/other differences in the interpretation of sighs in four hypothetical situations, revealing that sighs in other people are primarily perceived as signs of sadness, whereas own sighs are more often believed to express a state of "giving up" something or somebody. In a third experimental study participants worked on difficult (insoluble) puzzles, which generated many futile solution attempts, often accompanied by sighs. It is concluded that sighs are often unintentional expressions of an activity, plan or desire that has to be discarded, creating a pause before it can be replaced by a novel initiative. 相似文献
115.
句子加工领域内, 主、宾关系从句加工不对称性效应是诸多语种内普遍存在的一种语言现象。本文对主、宾关系从句加工不对称性效应从如下几个方面进行了分析和论述:①从成人语言、儿童语言和失语症患者三个领域并结合印欧语系和非印欧语系的语言特征, 详细分析了该效应及其普遍性和特殊性; ②主、宾关系从句加工不对称性效应的理论解释:句法角色理论、“填充语-空位”依附理论、积极填充策略、名词短语可及性层级理论和干扰相似性理论; ③与主、宾关系从句加工不对称性效应有关的脑电成分及相应的脑区激活模式的分析。最后, 在对已有理论评价分析的基础上, 提出“标记浮动”句子加工理论模型, 并指出该领域未来的研究方向。 相似文献
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信息经济学视角下的医患信任关系重构 总被引:6,自引:1,他引:5
郑大喜 《医学与哲学(人文社会医学版)》2005,26(7):44-45,60
在医学诊疗过程中,医患双方存在着医疗信息分布和掌握的不对称,这种情况直接影响着医患信任的建立和患者对医疗效果的评价.从信息经济学视角提出了重构医患信任关系的建议. 相似文献
120.
探讨了表情因素作为身份特征对多身份追踪中分组效应的影响。采用多身份追踪范式, 8个客体为表情图片(正性、负性、中性)其中4个为目标, 对45名被试进行了有无眉毛线索对追踪表现影响的测查。实验条件分别为:目标表情与非目标表情完全不相同组(4水平, 简称分组)、目标表情与非目标表情都由两种相同数量的表情混合组成(3水平, 简称配对)与基线组(8个客体表情相同)。发现分组水平的成绩显著优于基线组, 配对水平的成绩显著低于基线组, 并表现出了负性表情的追踪优势; 另外, 有无眉毛线索对追踪表现无显著影响。这一结果说明多身份追踪中存在基于表情特征的分组效应, 负性表情的分组知觉高于正性表情。 相似文献