语言转换对非熟练双语者不同认知控制成分的即时影响

语言转换情境是否影响非熟练双语者的认知控制存在争议。实验1和实验2分别采用不同的实验范式探讨语言转换对非熟练双语者的认知控制是否会有即时的影响, 以及对不同认知控制成分的影响是否会有不同。结果表明, 语言转换情境能够即时地促进反应抑制, 阻碍干扰抑制, 但对认知灵活性没有影响, 同时说明了反应抑制、干扰抑制和认知灵活性属于3种不同的认知成分, 其内在作用机制不同。此外, 研究结果还进一步说明了双语者的认知控制优势是双语者长期双语使用的结果, 为双语优势的内在机制提供了实验支持。     

Multiplicatively interacting factors selectively influencing parameters in multiple response class processing and rate trees

Evidence in many experiments indicates that the processes involved in producing responses are arranged in a tree structure. Evidence often indicates further that an experimental factor, such as item similarity, changes a single parameter, leaving others invariant. In typical studies, a few tree structures are hypothesized a priori, and tested by goodness of fit. With the method of Tree Inference, a tree is constructed by examining the data to see if patterns occur that are predicted when two factors selectively influence different processes (Schweickert & Chen, 2008). The patterns can reveal, for example, whether selectively influenced processes are executed in order, and what the order is. If the patterns do not occur, one can conclude that no tree is possible in which the factors selectively influence processes. In earlier work, three restrictions were imposed on the trees considered: There were two classes of responses; parameters were probabilities, bounded above by 1; and factors were assumed to change parameters associated with children of a single vertex. More general results are derived here, removing these restrictions. Results on representation, uniqueness of parameters, uniqueness of tree structure, and mixtures of trees are presented.     

Multifactorial pathways facilitate resilience among kindergarteners at risk for dyslexia: A longitudinal behavioral and neuroimaging study

Recent efforts have focused on screening methods to identify children at risk for dyslexia as early as preschool/kindergarten. Unfortunately, while low sensitivity leads to under‐identification of at‐risk children, low specificity can lead to over‐identification, resulting in inaccurate allocation of limited educational resources. The present study focused on children identified as at‐risk in kindergarten who do not subsequently develop poor reading skills to specify factors associated with better reading outcomes among at‐risk children. Early screening was conducted in kindergarten and a subset of children was tracked longitudinally until second grade. Potential protective factors were evaluated at cognitive‐linguistic, environmental, and neural levels. Relative to at‐risk kindergarteners with subsequent poor reading, those with typical reading outcomes were characterized by significantly higher socioeconomic status (SES), speech production accuracy, and structural organization of the posterior right‐hemispheric superior longitudinal fasciculus (SLF). A positive association between structural organization of the right SLF and subsequent decoding skills was found to be specific to at‐risk children and not observed among typical controls. Among at‐risk children, several kindergarten‐age factors were found to significantly contribute to the prediction of subsequent decoding skills: white matter organization in the posterior right SLF, age, gender, SES, and phonological awareness. These findings suggest that putative compensatory mechanisms are already present by the start of kindergarten. The right SLF, in conjunction with the cognitive‐linguistic and socioeconomic factors identified, may play an important role in facilitating reading development among at‐risk children. This study has important implications for approaches to early screening, and assessment strategies for at‐risk children.     

Take a risk or proceed with caution: Prevention motivation moderates responses to near-loss events

A persistently pressing issue identified in the decision-making literature is that people not only fail to recognize the risks entailed in a near-loss event but also subsequently engage in further risk-taking. We contend in this paper that prevention motivation critically regulates decision-makers' responses to a near-loss. Across three studies, we found that high prevention-focused individuals perceive greater risks in a near-loss event and are subsequently less likely to take risks, compared with low prevention-focused individuals. This finding highlights the significance of applying a motivational perspective to studying decision-making and risk.     

The Relationship Between Social Support and Family Relationships Among Low-Income Couples Attending Relationship Education

Results are mixed for relationship education (RE) interventions with low-income couples. For couples who experienced positive changes, it is not clear what aspects of program models contributed to change. Many low-income couples attend government-funded RE with limited access to social and community resources. Program models often provide related resources complimentary to RE skill-building. We examined the relationship between income, social support, and family functioning for low-income, ethnically diverse couples (N = 856) who attended RE, as well as the mediating effects of social support on family functioning outcomes. Analyses included three separate dyadic models that examined associations among constructs at baseline and immediately following the RE intervention. Results demonstrated relationships between participants’ reported social support and family functioning such that (a) social support was associated with baseline family functioning for both men and women; (b) men’s baseline social support was influenced by women’s baseline family functioning; and (c) men’s and women’s social support change score had a positive influence on their own family functioning change score. However, social support was not a significant mediator of change in family functioning. Implications for RE practice and research are also discussed.     

自伤行为的神经生理机制及共病障碍比较

自伤行为是危害公众心理健康的重大隐患。综合自伤行为的新近研究成果,情绪脑区、控制脑区、疼痛脑区、奖赏脑区、阿片类系统和多巴胺系统以及特定基因的异常共同参与了自伤行为。将自伤行为与自杀、成瘾、进食障碍和抑郁障碍进行比较,发现自伤行为与其共病障碍存在部分相似的发生机制。在此基础上尝试构建了自伤行为的认知神经机制假设模型,并就自伤行为神经生理机制的性别差异、发展特点及干预等提出研究展望。     

5·12地震前后灾区大学生生命价值观比较

采用自编大学生生命价值观问卷（LVS）分别三次对灾区大学生进行测试：5·12地震前1年、震后2周、震后5个月。结果表明:（1）自编的大学生生命价值观问卷（LVS）包括存在价值、目标价值、规则价值三个维度,探索性与验证性因素分析证明问卷具有良好的信效度。（2）在LVS总分和其存在价值维度上,震后2周得分均高于震前1年和震后5个月。（3）在存在价值取向维度上,女生震后2周和震后5个月得分显著高于男生;理科生震后2周得分高于震后5个月和震前1年,理科生震后2周得分显著高于文科生。（4）在规则价值取向维度上,文科生震后2周得分显著低于震后5个月,文科生震后2周得分显著低于理科生     

阈下抑郁的研究概述

近年来,临床心理学家们越来越关注阈下抑郁对重性抑郁症的预测作用.阁下抑郁虽然没有达到诊断标准的阈值,但是在普通人群中非常普遍,会降低这些人的生活质量,增加患抑郁症的危险.从阈下抑郁的定义及发病率、对阈下抑郁的评估、与重性抑郁症和其它精神疾病的关系等方面做一综述,并对该领域研究存在的问题和将来的研究方向进行了讨论.     

儒道生命观比较研究——以《论语》和《老子》为例

作为中国传统文化的两大主流的儒、道两家,在生命观上存在着重大的差异。这种差异,具体体现在生命的本源、生死的过程、人生的存在状态、人生的价值以及如何实现此价值等几个方面。本文以《论语》和《道德经》为例,从诸多方面对儒、道两家在生命观上所体现出来的特征进行了分析比较。